What is Ecology?

Contributed by:
kevin
Our existence, lifestyles, and growth depend entirely on the sun and the earth. The energy from the sun is called solar capital. In the same way, the planets, air, water, fertile soil, forests, grasslands, wetlands, oceans, lakes, wildlife, minerals, and natural purification and the recycling process is treated as Earth's capital.
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BASIC CONCEPTS :
NATURE, ECOLOGY, ENVIRONMENT
1.0 Objective
1.1 Introduction
1.2 Evolution of human being
1.3 Ecology
1.4 Environment
1.5 Types of Environment
1.6 Summary
1.7 Reference
1.8 Questions
1.0 OBJECTIVES
1) To make the students aware of the meaning of environment
and its relationship with society.
2) To familiarize the students with basic concepts namely -
ecology and environment.
1.1 INTRODUCTION
Our existence, lifestyles and growth depend entirely on the sun and
the earth. The energy from the sun is called solar capital. In the
same way, the planets, air, water, fertile soil, forests, grasslands,
wetlands, oceans, lakes, wildlife, minerals and natural purification
and recycling process are treated as Earth's capital. We use the
term 'environment1 to describe, in the language of G.T Miller, The
Plant's fife - support system for us and for all other forms of life'. In
effect, the environment is me sum-total of solar capital and earth
capital. It also includes the thing created by humans. Environment
now extends far beyond the bounds of the local environment, thus it
is the intimate enclosure of the individual or a local human
population and the global domain of the human species.
Ecology as a discipline is focused on studying the interactions
between an organism of some kind and its environment. In ecology,
'niche' refers to the role an organism or species play in its
ecosystem. An organisms niches includes everything affected by
the organism denying its lifetime. We study ecology to learn how
nature works. So ecology is a study to achieve a new goal to help
scientists to develop methods to protect the natural world - physical
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1.2 EVOLUTION OF HUMAN BEING
Man is clearly an animal. His heart, intestine, liver, lungs differ little
from the corresponding organs of cat, a dog or a monkey. His
respiration, digestion, reproduction muscle contraction, nerve or
endocrine co-ordination fine the same general processes and same
general chemical and physical relations that one finds in animals. If
subjected to classification there is no difficulty in recognizing that
man is a vertebrate and hence belongs to the phyllum chordata.
Among the vertebrates he obviously belong with the class of
mammals. He is bipedal using only his hand legs for locomotion but
this is also true of Kangaroos. Men, monkeys and apes are very
similar to the anatomy. Ecologist concerned with the study of
various eco-systems regard man chiefly as a disturbing element in
it, and it is this growing attitude on the growing reality of man's
disturbing tendency that has given rise to the academic interest in
man-nature relations.
When Darwin published the Descant of Man (1871) he did not know
of any human fossils. He built his case for human evolution entirely
on evidence from living men and living primates, and he thought the
great break in the Organic chain between apes and man might
never be bridged because of the imperfect nature of the fossil
!n late 1920s and early 1930s a series of man-like fossils were
found in a cave deposit near Choukoution in China, 42 miles from
Peking (Bejing). These very the remains of what came to be called
as the Peking man or Sinanthropus. In subsequent years a variety
of homonid fossils were discovered mostly in Africa. These do not
form a neat chin of links leading from ancient ape to modern man.
They cannot be arranged in a single sequence and it appears that a
considerable variety of man-like animals lived a different times and
places in the pleistocene.
The Pleistocene was short as geological periods go, and it was also
peculiar in having great four waves of glaciation around their way
much across North America and Europe, and particular events are
dated with reference to these glacial and interglacial periods,
although absolute time range remains uncertain.
1.3 ECOLOGY
The word ecology derived from the Greek word 'Oikos meaning
habitation, and logos meaning discourse or study, implies a study of
the habitations of organisms. Ecology was first described as a
sepearate field of knowledge in 1866 by the German Zoologist
Ernst Haeckel, who invented the word Ecology for 'the relation of
the animal to its organic as well as its inorganic environment,
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particularly its friendly or hoslite relations to those animals or plants
with which it comes in contact.
Ecology has been variously defined by other investigators as
"Scientific natural history", "the study of biotic communities, or "the
science of community population", probably the most
comprehensive definition is the simple one most offers given' a
study of animal and plants in their relations to eachother and to
their environment.
Ecology may be studied with particular reference to animals or to
plants, hence animal ecology an plant ecology. Animal ecology,
however, cannot be adequately understood except against a
considerable background of plant ecology. What animal and plants
are given equal emphasis, the term bioecology is often used.
Causes is plant ecology usually dismiss animals as but one of
many factors in the environment. Synecology is the study of
communities, and autecology the study of species. There is some
confusion in these terms since Europeans commonly use 'ecology'
in manover sense - meaning the environmental relations of
organisms or of communities. The broader study of communities,
including species interrelations and community structure and
function as well as environmental relations (Synecology), is
generally ermed ―bioecology‖ or "biosociology" by Europeans.
1.5 ENVIRONMENT
Its meaning and significance
History reveals that human race was once afraid of nature and the
natural forces. Human beings worshiped nature and considered
nature as superior to human race. Enormous increase in human
population raised the demand for development and increased the
consumption of variousnatural resources resulting in environmental
The term environment describes the sum total of physical and biotic
conditions influencing the responses organisms. More specifically,
the sum of those portions of the hydrosphere, lithosphere, and
atmosphere into which life penetrates is the biosphere. There are
no characterstics of permanent inhabitants of the atmosphere,
although the air is traversed by manly kinds of animals and plant
propagules. Of the hydrosphere, there are two major bicycles,
marine and fresh water, of the tithosphere there is one land.
A-habitat is a specific set of physical and chemical conditions (for
example, space, substratum, climate) that surrounds a single
species, a group of species or a large community. The ultimate
division of the biosphere is microhabitat, the most intimately local
and immediately set of conditions surrounding an organism, the
burrow of a rodent, for instance, or a decaying log. Other individuals
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or species are considered as a part of the community to which the
organisms belong and not part of its habitat. The term biotope
defines a spatial or topographic unit with a characterstic set both of
physical and chemical conditions and of plant and animal life.
In order for organisms to exist they must respond or adjust to the
conditions of their environment. The first living organisms probably
evolved in the sea and must have possessed very generalised
adjustments to this relatively uniform and favourable habitat.
However, these early organisms are inherent in them the potential
for expansion, as they later spread into other and more rigorous
habitats, particularly fresh water and land. As evolution proceeded,
organisms became more and more limited in the range of their
ability to respond as they became specialised in their adjustment to
particular habitants. This led to the great diversification of species
that we see at the present time, with each species restricted to its
particular microhabitat and place in the community.
1.5 TYPES OF ENVIRONMENT
Environment can be classified into 3 broad types
a) Biotic (living) -
The word biotic refers to having to do with living organisms. Biotic
elements refer to the biological component of the ecosystem,
consisting of population of plants, animals and micro organisms in
complex communities. The biotic factors influencing an organisms,
viruses and other parasytic organisms cause diseases. There are
all parts of an organisms biotic environment. The biotic component
of the ecosystem consists of 3 distinct groups of organism, the
producers, consumers and decomposers. The producers are those
organisms capable of photosynthesis, production of organic
material solely from solar lift and carbondioxide. This organic
material serves as a source of both energy and mineral nutrients.
Both are required by all living organisms. Examples include both
terresticial and acquatic plants such as phytoplankton. The
consumers are organisms whose very survival depends on the
organic material manufactured by the producers. The consumer
represent animals of all sizes ranging from large predators to small
parasites, such as mosquitoes and flies. The nature of the
consumers dependence on the producers takes various forms.
Some consumers (herbivores such as rabbits) are directly
dependent on primary producers of for energy. Others (carnivores
such as tigers)depend indirectly on primary producers. The last
group of living organisms is the decomposers. These include micro-
organisms such as fungi, bacteria, yeast etc. as well as a diversity
of worms, insects and many other small animals. They all rely on
dead organisms for their existence and survival. In their efforts to
survive and obtain energy they decompose materials released by
plants and consumers to their original elements (C,O,H,N,S,P). This
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is what keeps material cycling within the ecosystem. The biotic
community together with the physical environment forms are
interacting system called ecosystem.
b) Abiotic -
Abiotic factors* include the flow of energy necessary to maintain
any organism, the physical factor that affect it and the supply of
molecules required for its life functions. Other physical factors
include climate, temperature, preciptation, including its types (rain,
snow, hill) around and seasonable distribution, types of soil present
(sandy or clay, dry or wet, fertile or infertile). All forms of life require
atoms such as carbon, nitrogen and phosphorous and molecules
such as water to construct and maintain themselves. The
organisms constantly obtain these materials from environmental by
eating food or taking them us through the process of
In the ecosystem, the abiotic (non-living) \components perform 3
important function water and oxygen for organisms. 2nd, they act
as a reservoir of the 6 most important elements for life, carbon(C),
hydrogen(H), Oxygen (O), nitrogen (N), Sulphor (S) and
phosphorus (P). These elements constitute 95% of all living
organisms. 3rd, the Earth contains only a fixed amount of these
elements. Thus continual functioning of the ecosystem requires one
thing at least. These elements have to be recycled because they
are critical to the welfare of the ecosystem as a whole.
c) Cultural -
The stage of development that human being have attained in the
path towards progress will determine their culture as way of life.
Human interaction with environment also influence the ecosystem.
People of different cultures view their place in society from different
angles. Among the factors that can shape their views are religious
understandings, economic pressures and fundamental knowledge
of nature. Due to this diversity of background different cultures put
different values on the natural world. But the general attitude has
been one of development rather than preservation.
Technology has been the key to human progress. Technology has
also increased the quantity of environmental degradation. Human
interaction with the environment has increased very fast of late. For
example, the green house effect is thought to result from energy
consumption, agricultural practices and climatic change. It is now
felt that we have entered an era characterised by global change
that arises from the interdependence between human development
and their environment. So self conscious and intelligent
management of the earth is one of the greatest challenges facing
humanity today. Human also cause extinction lin indirect ways. The
building of dams changes the character of rivers, making them less
suitable for some species.
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1.5 SUMMARY
Nature and environment are commonly used terms for the ecology.
Man is seen as a sort of geoglogical force reshaping landscape,
favouring some kinds of organisms and destroying others, changing
the very composition of the atmosphere and starting new chain of
radio activity with atomic explosions.
1.6 REFERENCE
1) Marston Bates 1961, Man in nature, Practice Hall New Jersey.
2) Ruth Moere 1975, Man in Environment, Tata McGraw Hill,
New Delhi
3) Gibson A 1866 : A Hand Book of Forests 1875-1860 Bombay
Government District Gazetleer North Kanara Bombay
4) Tiwari PR, Raj G 1992, Environmental Ecology Akashdeep
Publishing Home Delhi.
5) Thirmurthy A.M. 2004, Principles of Environmental Science,
Engineering and Management, Shroff Publishers Mumbai.
1.7 QUESTION
Q.1. Define environment and ecology?
Q.2. What do you know about the ecology and types of
environment?
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2
CHANGING HUMAN - NATURE
RELATIONSHIP
2.0 Objective
2.1 Introduction
2.2 Dynamics of development and changing human nature
relationship.
2.3 Factories responsible for changing human nature relationship.
2.4 Summary
2.5 Reference
2.6 Questions
2.0 OBJECTIVE
1) To familarize the students with their natural surroundings.
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2) To make the students aware about the basic necessities (food,
water, air) required for day to day living.
2.1 INTRODUCTION
Everything which surrounds us may be collectively termed as
environment. It is from the environment that we get food to eat,
water to drink, air to breathe and all the basic necessities required
for day to day living. The environment therefore can be said to
constitute as "Life support system".
Since the environment is crucial to human wellbeing and human
survival, we have a duty towards the environment i.e. a duty which
is derived from human interest. This involves a duty to assure that
the earth remains environmentally hospitable for supporting human
life. For this there is a need to strike a balance between resource
use and resource availability. To have sustainable development it is
necessary that technology is used with prudence, otherwise the tool
can become a weapon of destruction leading to environmental
2.2 DYNAMICS OF DEVELOPMENT AND CHANGING
HUMAN - NATURE RELATIONSHIP –
Hinduism states that the natural environment is a manifestation of
divine nature itself. The order of creation was Akash (space), Vayu
(air), Teja (energy), Aap (water) and prithvi (earth). These are
known as the 'Panchtatva1 or the five elements. Hindu code bill or
dharma strives to create harmony for the individual not only within
the established societal order but also with the natural environment.
There are from basic components of natural environment :-
1) Atmosphere or the air.
2) Hydrosphere or the water.
3) Lithosphere or the rocks and soil.
4) Biosphere or the living component of the environment.
Atmosphere - this consist of a complex mixture of a number of
gases, watervapour and a variety of fine particulate material. The
earth's atmosphere can be roughly divided into 4 major zones
based on temperature. These zones are as follows :-
a) The troposphere :- this is immediately above the earth's
surface and extends upto a height of 20 kms. above the
equator and 8 kms. over the poles. The temperature may drop
to 60°C at is upper extremely.
b) The Stantosphere :- it is about 30 kms. in thickness and is an
important zone of the atmosphere as it contains the 'Ozone'
layer. The temperature in this zone rise from - 60°C to O°C.
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c) The mesosphere - it is about 40 Kms in thickness and this
zone is characterise by gradual decline in temperature to
about 90°C.
d) The thermosphere - in this zone the temperature increases
with height & most of the consituents of this zone are in an
ionized state.
Importance of atmosphere :- As a life support system the
atmosphere or air is important to us.
1) The structure and the composition of atmosphere are
responsible for creating conditions suitable for the healthy
existence of the biosphere.
2) Atmosphere regulates the temperature of the earth. This is due
to the presence of gases which are capable of absorbing long
wavelength radiations, otherwise no activities could be carried
out due to extreme temperatures.
3) The incoming solar radiations are filtered above the earths
surface. Harmful ultraviolet rays are absorbed in the
stantosphere by the vital ozone layer. These ultraviolet rays
can severly damage life on earth.
4) The temperature and pressure patterns regulates the
abundance and composition of the biotic system or earth.
5) The atmosphere is a quick and effective media for transfer
transport and dissemination of gaseous wastes.
6) Pollutants in the atmosphere are removed to a great extent due
to snow deu or rain which cleans the atmosphere.
Hydrosphere :- an enormous quantity of water is present on our
planet. In the total estimated water on earth 95% is locked in the
lithosphere and 5% is actually available for fine circulation. Much of
the available water contains a high percentage of salt and is
therefore of little use to mankind. It is mainly the water received is
the form of preclipitation - rain dew snow which is the most
important source of fresh water to life as the earth.
Importance of water :-
1) Without water life as it exist on Tour planet is impossible.
2) Water is an important medium in which all biochemical
reaction within a living organism and the other component of
the environment like rocks soil etc. occurs.
3) The availability of water determines the nature composition
and abundance of vegetation and other forms of tenestrial life.
4) Water vapour can effectively absorb long wavelength
radiations and therefore it acts like a greenhouse gas and
plays an important role in regulating the temperature of the
earth's crust.
5) Water can be retained in the soil due to high surface tension
and the moisture retained in the soil therefore support
vegetation.
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6) The low lying region of the world, the river basins and land
along seawast is much more productive and nearly 90% of the
world population is concentreted in these areas.
Lithosphere or Rocks & Soil -
The lithosphere can be broadly in two categories A) Rocks B) Soil.
a) Rocks - the rocks found on the earth's crust are of three types.
a) Igneous rocks - they are formed by cooling and solidification
of moltan rock material called Magma e.g. Basalt.
b) Sedimentary rocks - develop as a result of gradual
accumulation consolidation and hardening brought about by
wind and water. These rocks are characterised by distinct
sedimentary layers e.g. shale sandstone.
c) MetaOnorphic rocks - are formed as a result of
metamorphosis of igneous and sedimentary rocks due to
intense heat and high pressure eg. Marble Slate.
Formation of soil
The changes in the earth's crust as a result with atmosphere and
the hydrosphere is called weathering. These are different agencies
which cause the weathering of rocks.
1) Chemical weathering - is a relatively slow and simple process.
The major agents responsible for chemical weathering are water,
air, oxygen carbondioxide and other materials.
2) Physical weathering - this is brought about by a mechanical
process due to changes in temperature water and wind.
3) Biological weathering - is caused by a number of organism
which aid in the disintegration of rocks. Roots of plants growing in
cracks and fissure creates considerable pressure and causes the
rocks to disintegrate.
Soil:- The important constituents of soil are
a) Particles of sand silt and clay
b) Organic material
c) Soil water and atmosphere
Importance of soil to the Biosphere
1) Soil provides mechanical support to the plants.
2) The porosity and moisture holding capacity of the soil enables
fit to retain rain water or water flowing over or through it for
long durations.
3) Soil contain organic matter such as nitrifying bacteria, some
microbes fungi and protozoan‘s to maintain in fertility for plants
and Vegetation to flourish.
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Biosphere :- This forms a thin curst of living beings over the
surface of the earth. The biosphere includes most of the
hydrosphere and parts of the lower atmosphere and upper
lithosphere. This ranges from the deepest ocean fluel 20 km (12
miles) below sea level to the tops of the highest mountains.
Within the ecosystems organisums interact with one another and
with their physical environment in various ways. On the basis of this
interaction the biotic community can be grouped into following :-
a) Producers :- i.e. green plants which absorb carbondioxide
mineral nutrients and water and release oxygen required for
other living things on earth.
b) Consumers :- producers are consumed by herbivorous
animals who in turn are consumed by carnivorous animals or
the secondary consumers. This establishes a chain known as
the food chain.
c) Decomposers :- the facial matter excreata of animals plants
humans and other dead organisums are decomposed by the
activity of bacterial fungi and other small organism which thrive
on decaying organic matter. The decomposers are important
because they "bring .... the constituent elements of plants and
animal bodies back to the surrounding medium or soil.
However many human activities have had a negative effect on the
biosphere. The illegal dumping of wastes, burning of fossil fuels
mining and extraction of resource has led to the pollution of air,
water and soil. It is now increasingly felt that the biosphere must be
conserved. To achieve this the concept of biosphere reserves was
developed by the UNESCO, which had three major objectives.
a) First to conserve for the present and future human use the
diversity and integrity of biotic communities of plants and animals
and to safeguard the genetic diversity of species for continued
b) To provide areas for ecological and environmental research.
c) To provide facilities for education and training.
2.3 FACTORS RESPONSIBLE FOR CHANGING
HUMAN-NATURE RELATIONSHIPS ARE AS
FOLLOWS
1) Population - the experiences gained through successes and
failures of several development have led to the greater
understanding that development lis a multidimensional concept
which encompasses not only economic and social activities but also
those related to population use of natural resources and their
resulting impacts on the environment. There has been some
understanding in the past about the inter relationship between
people - resources environment - development. But the efforts
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adopted to solve the problems were essentially sectoral. Although
the relationship perse was not new, it was disregarded in the face
of rapid development and technological advancement. It is common
knowledge that attempts to solve seemingly environmental
problems like desertification and the loss of productive soil or
deforestation, emphasis should be placed notonly on such physical
factors like climate, soil type modes of cultivation on land use
patterns, but also on many other driving forces like demographic
trends, types of technology levels used and distribution of income
among the population consumption patterns, cultural habits, and
educational levels of the inhabitants. Without such an integral
approach, action taken to solve the specific problem could give rise
to several other side effects, the sum total of which would even be
worse than the problems to be resolved.
Rapid population growth has serious environmental as well as
developmental implications. The world population doubled from
about 300 million to 600 million in more than 1500 years. The world
population steadily increased from 2.5 billion in 1950 to 4.8 billion in
1984 and 6 billion in 2000, in just 50 years.
The population spread, density, socio-economic political and
cultural characterstics vary from place to place and country to
country. However population is subject to births and deaths. While
births increase the population, the death decreases population,
depending upon the rate at which addition and is taking deletion
place. While the addition to the population demands developments,
the very developments increases resource consumption and
pollution is likely to affect the population through increased death
rate. The rate at which the reduction in global population takes
place will depend on the environmental deterioration, and impact on
human health.
b) Development -
Development is multifaceted. The increasing population develops
stress on agriculture for increased food production, establishment
of employment centers to develop opportunities for gainful
employment, efficient transport for mobility, shelter for better living
health and educational facilities. The quantity and quality of these
facilities depends on the affordability characteristics of the
population. These developments utilize natural resources (land,
water, air etc). Increase in population and provision of basic human
necessities to each individual mean more food, energy and raw
materials. Intensifying the supply of food means more land, water,
energy and fertilizers. This leads to energy crises and higher oil
prices, less energy available to increase food production. To
alleviate fertiliser shortages, and the common denominator in
virtually all responses it requires more capital, more technology and
more co-operation.
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The demand and supply equation attains greater meaning
depending upon the economy, socio-cultural order prevailing in the
country. For example, raw-materials continue to get exported from
developing countries, in turn, the finished goods, which are costlier,
get imported in poorer countries thus upsetting the economic
balance and the environmental balance too. Thus material
movements are transpounday, with long distances from origin to
destination, transmedia with many processes between gases,
liquids and solids and hans generational transferring impacts and
responsibilities from present to future.
c) Consumption of natural resources
Different parts of the globe are endowed with natural resources of
varying types, quality and quantity. The degree of consumption of
these natural resources are neither uniform at all places nor priced
at the same level. For example, iron and steel are used world over.
But some countries are the highest producers of iron and steel but
they may be importing raw materials in bulk and exporting finished
products to other countries. The place or country where raw
material is available in plenty and exported is subjected to
environmental degradation due to deforestation soil erosion and
making the land less fertile. The country where the raw material is
proceed may be subject to industrial pollution. Thus the pollution is
also transferred from place to place. Similarly the rate of
consumption and the attendant environmental problems also very
from place to place.
The major environmental problem however is when the raw-
materials are processed, they are subject to physical and biological
change and the environmental pollution starts. The natural
resources which are land, water and air get polluted to different
degrees, however only when the holding capacity exceeds, it
produces harmful results. While land and water pollution is confined
to limited area, the air pollution finds no boundary and carried over
to a longer distance. The very land which supplies raw material,
receives the pollutant.
d) Health hazards
Pollution of land water and air ultimately affect the living organism.
Manifestation of several diseases at varying places differs in its
severity depending upon other climatic factors, including
temperature, wind, humidity etc. Similarly people living in different
places with varying environments are affected differently. New drug
are being found everyday. The chemical industries which supply the
chemicals and the pharmaceutical industry which manufactures
medicine, release large quantity of chemical effluents which have
severe side effects or causes diseases warranting further efforts to
find new drugs. Thus each development leads to a new
development which is mostly destructive in nature.
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The very population for which the development activities are
planned and developed has become the came for large scale
environmental deterioration through extensive utilization of natural
resources affecting the same population.
2.4 SUMMARY
Interaction with fellow humans and close interaction with various
aspects of nature through observation and experimentation
accumulation of empirical knowledge created a base for
technological development, contacts and 'nteraction further their
knowledge and overall development.
2.5 REFERENCE
1) V. Gordon Childe, 1956, Man Makes Himself Walts and Co.
London
2) Thirumurthy A 2004, Principles of Environmental Science and
Management. Shroff Publishers.
2.6 QUESTION
Q.1. Explain the concept of changing human nature relationship in
society.
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3
ENVIRONMENT AND SOCIETY
NATURE, MODERN SCIENCE
AND TECHNOLOGY
3.0 Objective
3.1 Introduction
3.2 Biological adaptations
3.3 Eco-system
3.4 Functions of an eco-system
3.5 Relationship between nature science and technology
3.6 Summary
3.7 Reference
3.8 Question
3.0 OBJECTIVES
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1) To make students aware about the changing environment and
modes of living in different ecological conditions.
2) To make students gamiliar with the nature, biological and
physical qualities of earth.
3.1 INTRODUCTION
Man is adapted to surve in the diverse ecological conditions from
aretic to equator, from mountains to ocean, from wetlands to dry
lands etc. Man has to adapt himself with the changing environment
in order to survive. In the struggle for existence those "weltadapted"
were fit to survive while the others not adopting according to
changing environment were eliminated in the course of evolution.
3.2 BIOLOGICAL ADAPTATIONS
Traces of adaptations are seen in the form of biological adaptations
as well as social and cultural adaptations. Pigmentation of the skin,
development of the subsitanous fatty layer in the region of chick
bones-storage of fat in particular portion of the human body are
common example of biological adoptation. But it is true that today
all these features are of less importance. Because of advancement
of technology and inventions of artificial means of protection, man
can easily combat with adverse climate conditions. We can say that
man's direct dependence on the natural conditions is constantly
decreasing. However social and cultural adoptation is an a
increasing owing to his mobility.
Every human society has its own distinct culture with regard to food
they eat, garments they wear, rites and ritual of births and deaths
and marriages modes of livelihood, means of recreation and
several other activities. Notonly this a variety of life styles are seen
all over the world. If we think of India, we find that although the
basic cultural network is same, there is a difference in lifestyles of
people, living in different regions. This difference is mainly due to
the geographical and climatic conditions of that particular region,
availability of resources in that particular region. According to the
above mentioned reasons, the mode of livelihood changes, eating
habits change, means of recreation change and the life style
appear changed on the whole.
People living in deserts of Rajasthan like to wear bright colorful
dresses, in order to add some color to their lives, on the other hand
people living in Kerala, Orissa, Assam wear white clothing, as there
are enough colors in the nature there itself.
People residing in Punjab eat wheat and lot of milk products,
whereas South Indians eat rice, owing to the variety of crops they
get in their area. In Maharashtra, we can mark difference between
Vidarbh and Konkan region. Staple food of Vidarbh is Jowar where
as Rice is the staple food in Konkan.
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Dances of plains and hills differ in nature because of geographical
differences in plains lot of foot work and action can be seen in
dances where as hill dances are contended with hand movements.
People living near forest worship tree gods, snake god and forest
gods etc. because their lives depend upon nature. But urbanites do
not give much importance to nature gods.
Environment includes everything that may effect an organism in
many way. Thus it covers the physical aspects such as air, water
land, soil as well as the social economic and political aspects is a
complex factor interacting notonly with an organism but between its
different aspects also. Thus environment can be understood as the
surrounding in which man lives and influenced by the elements or
the aspects of environment.
Environment may be divided into the following major
I) Natural and physical component - it can be further divided into
two types namely abiotic or non-living and biotic or living
component. The abiotic component is made up of the following –
1) Location - it can be understood in terms of the exact location of
a place on the earth. Related to the location other factors can be
understood such as climate, temperature, rainfall, forest, availability
of water and other natural resources.
2) Terrain - altitude or degree of slope forms another significant
aspect of physical environment.
3) Geological structure - it is the presence and composition of
underline rocks and determines land forms and occurrence of
mineral wealth.
4) Climate - it is the most dominant component of physical
environment. It is understood through temperature, rainfall, humidity
and sunlight. It affects various aspects such as plant growth, type of
soil, occupation etc.
5) Energy - energy received from sun is the main source of heat
and light is the environment. It is also the life giving force for the
plant and animal world.
The biotic components are those which influence living organism,
plants, animals and man. They are as producers or autographs,
consumer or hetrotrophs, decomposers and reducers. The biotic
components are interlinked and form a food chain.
II) Culture or human components - it basically includes all the
man-made and ^artificial characterstics of human society. Man
stays in physical or natural environment but the changes or
modifies, this natural environment to suit his needs and
requirements. In other words he develops a cultural environment.
16. 16
The cultural environment can be further divided into the following
1) Social environment - it can be understood interms of the non-
material aspect include the norms, values, ideas knowledge etc.
whereas the material aspects are the manifest forms of the non-
material aspects.
2) Economic environment - it involves the different types of
economic activities developed by man. Each type of economic
activity has its own requirement of resources as well as technology.
3) Political environment - it includes the type of environment
and its ideological principles, various important factors such as
production, consumption, use of resources etc. are determined by
the strategies and policies advocated by the -government. This in
turn determines the level of development and progress of the
society. Thus environment is a complex phenomena.
3.3 ECO-SYSTEM
an assemblage of species of plants and animals inhabiting a
common area and having effects on one another is known as a
biotic community. A combination of a biotic community with the
natural or physical environment is known as an ecosystem.
The term eco-system implies to a local community of organisms
inter-acting with their local non-living environment. In other words
the interdependence of living and non-living aspects i.e. plants,
animals, man, forest, soil etc. make an eco-system.
It is defined as an unit which include all the organisms (biological
component) in a given area inter-acting with the environment
(physical component) so that the flow of energy leads to a clearly
defined tropic (nutrient supply) structure biotic diversity and material
It means every eco-system has a flow of energy and cycling of
nutrients which bind the biological and physical components
together. Every eco-system has a certain capacity to sustained - its
components without deterioration this is called its carrying capacity.
An ecosystem does not remain constant. Changes occur in it
continuously in one form or the other. It is significant that even a
small change in one part of an ecosystem is felt though out the eco-
system. This establishes the importance of inter-linkages in an eco-
system. However the system tries to maintain the stability of an
eco-system depends on its diversity. More the diversity more is the
inter dependence and more is the resistance to change.
17. 17
This does not however mean that ecosystem is devoid of any
change. Changes do occur. It is the drastic change in eco-system
that affects the environment.
An eco-system has two important aspects namely structure and
function. The structure includes the composition quantity and
distribution of the biological and physical components. The function
includes aspects such as rate of energy flow and nutrients,
ecological regulation of environment by the organism etc.
Some of the major eco-system of the world are sea's, fresh water
marshes streams, rivers, lakes, ponds, deserts grasslands and
forest. Broadly speaking ecosystem can be divided into two major
1) Aquatic or water eco-system such as seas, rivers, ponds etc.
2) Terrestrial or land eco-system such as deserts, forests etc.
Eco-system constitutes a very important unit of environment. It
consist of three main components namely producers, consumers,
decomposers and reducers. Producers - they basically include
plants which act on self-nourishing organism. These plants contain
chlorophyll and with its help, they obtain solar energy and
manufacture it into food, they act on a starting point in a good chain
all living organisms depend on the existence of producers for their
requirements of food, thus they are primary source of energy.
Consumer - they are mainly of two types namely the macro
consumers and micro
The macro consumers can be further divided into 3 types as follows
(a) primary consumer, they include the herbivorous or grass eating
animals which feed on green vegetation for ex-sheep deer etc.
b) Secondary consumers - they include the carnivorous which eat
the flesh of herbivorous they are also called as herbivorous
predators for ex fox, hyenc on land and fish and crabs in water.
c) Tertiary consumers - they include the animals which feed on
secondary consumers and are known as higher level carnivores ex-
tiger lion on land and sharks in water a part from these omnivores
are also included that this organism which depend both on primary
and secondary for e.g. Man.
The Micro consumer are called as deterivores such as earthworms,
centipedes etc. they feed on organic matter.
3) Decomposers and reducers - they include the bacteria and
fungi. These are basically micro scop organism. They break down
complex compounds of dead plants and animals absorb some of
18. 18
the decomposed products and release mineral nutrients into the
soil. Bacterial decomposed dead animal tissues and fungi
decompose dead plants tissues. In this process of decomposition
and reduction the nutrients which are released into the soil are used
by procedures.
3.4 FUNCTIONS OF AN ECO-SYSTEM
1) Eco system performs the most important function of satisfying
the requirements of the different aspects of the biotic component.
2) It is through an eco-system that the interaction as well as
interdependence between the biological component and the
physical component in the environment takes place, this
interdependence is between biotic and biotic components. For ex:-
plants depend on solar energy and soil. The interdependence is
also between different aspects within the biotic components. For ex.
the carnivores depend on herbivores.
3) Eco-system leads to transfer of food energy and nutrients from
one source to another source.
4) The different forms of eco-system are beneficial because they
lead to positive effects on the environment which in turn helps the
living organisms.
5) Eco-systems have helped human beings by providing materials
as well as services necessary for survival as well as development.
3.5 RELATIONSHIP BETWEEN NATURE SCIENCE
AND TECHNOLOGY
Before you understand the relationship between nature and science
and technology. It is necessary to understand the meaning of each
Nature - it is understood on the qualities and characteristics related
to any given thing from the view point of environment. Nature
consist of the biological and physical qualities of earth. It means the
physical characterstics such as air, water, soil, temperature etc. as
well as the natural laws and principles which control the functioning
of the natural events. Science - it is defined as the systematic body
of the factual knowledge obtained by the use of scientific method
there are certain important characteristics of science.
1) It is based on truth or facts.
2) The scientific methods of observation and experimentation are
used.
3) Science puts forwards knowledge i.e. reliable, valid and
verfiable in other words the knowledge has to be precise,
accurate and free from vagueness and ambiguity.
4) It believes in ethical neutrality i.e. freedom from value
judgement.
19. 19
5) Science never accepts anything to be conclusively true. It is a
continues search for facts hence scientific knowledge is
subject revision and modification as per any new research.
Technology - it is defined as the application of knowledge for
practical purposes. It is closely related to science|.This is because
scientific knowledge is put to practical use.
There are certain important characterstics of technology
1) It has a utilitarian value. It means the means of technology are
of use to the human society.
2) technology has created for reacting changes in the society.
3) It is through the creative aspects of the technology that the
developments and progress has been possible technology
used not necessarily always be beneficial. There are negative
effects of technology also.
The relationship between science, nature and technology has to be
understood through man. Man is the focal point and it is his
interaction with nature and his use of science and technology which
has laid to a relation between nature, science and technology.
During the intitial years of human civilization man was in awe of
nature. In other words he respected as well as feared nature. This
was because the rational and logical thinking of man was
inadequate. Hence, the natural event or (natural occurrences were
a mystery a constant source of fascination. Man attributed immense
power to nature and firmly believed that it was nature which had
ultimate control over his life.
Slowly and gradually as human civilization proceeded through time
a mark increased in mans intelligence, rational thinking as well as
perception was noted. He started understanding the working of
nature. The various natural event and occurrence could be
understood interms of a cause effect relationship and natural laws.
Nature no longer remained a mystery.
All this became possible because of man's need to search for
knowledge or facts. Knowledge or facts unfolded the mysteries of
nature. In other words it was the development of science which put
man in a better position to understand and evaluate nature. This
created significant changes in man's perception towards nature.
Initially man had accepted the domination of nature passively.
However with growing awareness nature no longer was consider as
an all powerful forces. It could now be termed, controlled modified,
manipulated as well as exploited.
With the advent of technology i.e. application scientific knowledge
for a practical purposes, the situation became still worse. Man no
20. 20
longer was only taming the nature, but now he was tempering
without to suit his own requirement and motives vast amount of
changes were made in the natural environment under the name of
development and progress of human society. These led to serious
environmental degedration.
Thus it was man who has responsible for waiting a relationship
between nature science and technology. This relationship can be
understood from a positive view point as well as negative view
Positive aspects of the relationship between nature, science and
As long as nature was a mystery the development and progress of
human society remained as a lower level. Simple occurrences or
natural events could not be deciphered by man. Man remained
unaware of the causes of events such as rainfall, storms, floods,
earthquakes etc. The logic and reasoning behind certain events.
Such as how fire occur or how it could be ignited could never been
known. This put a serious limitation on his innovativeness.
But it was through science that significant changes took place in the
history of mankind. Science discovered the laws of nature acted as
a torch of light to explore and discover the unknown. It provided a
lay of hope to man to understand a natural occurrences in a rational
and logical manner. Science determines the natural functioning.
This was possible because science was based on truth or facts.
These facts were discovered accidentally or consciously. Once they
were to discovered and sub-sequently verify, this scientific
knowledge could Ibe used to modify and adopt nature for the sake
of the benefit of mankind.
Application of Science and scientific.
Principles - development of technology after the advent of
technology, the heights reached by human beings interms of
development and progress have been unparalled. Various field
were benefited from these developments.
Examples can be given in respect to important natural resources
such as land, water, soil, forest etc. Science and technology have
helped in man in proper utilization of land, space, planning towns
and cities. Importance of water is evident through a conscious effort
at water saving and water utilization schemes. Irrigation, water
harvesting, dams etc. are a result of these efforts, science and
technology have contributed in improving soil fertility as well
minimizing soild erosion. Apart from this the uses of forest have
been maximized through science and technology wood, timber and
other products of forest have been utilized to the benefits of human
society. However it was the selfishness and greed of man which did
21. 21
not stop him at utilization of natural resources but led to explitation
of nature.
Negative aspects of the relationship between nature, science,
The negative aspects are much more significant as compared to
the positive aspects because of the damage they have caused to
the nature. Man has exploited the natural resources in a
tremendous manner. Modern scientific knowledge and
technological innovations have degraded the natural environments.
Examples can be given with respect to important natural resources
bring misused. A lot of deforestation is carried out in order to
increase landscape. This has created significant changes in rainfall.
Use of chemicals as well as chemical waste have led to significant
pollution levels which are evident in different forms. Water pollution,
soil pollution etc. Heavy industrialization, ultranisation, modern
transportation. System has caused severe air pollution. The modern
science and technology had led to serious damages such as
depletion of ozone layer global warming etc. Many development
have taken place which had revealed that technology may not
always be beneficial to mankind.
We need to consider the fact that man himself was responsible for
the development of science and technology. With their help the
consciously tried to modify and control the nature. But in this
process he himself has become their slave. Though science and
technology have created for reaching heights in mankind‘s
development and progress, they have also resulted in far reaching
serious implications.
3.6 SUMMARY
Modern science and technology brought progress but at the same
time also contributed to a stressful life for human beings. Miss-use
of natural resources is criminal became it reflects adversely notonly
on the present but more importantly the adverse efforts will also
affect the future of mankind and thus the price of development and
progress which has been taking place due to science and
technology is heavy to be paid by man.
In conclusion, can be said that the focus of the relationship between
nature, science and technology can be traced to the relationship
between nature and human beings. It is very necessary to accept
the power of nature. Nature is above man and hence it is futile to
control or dominate it. It has to be respected and limits should be
put on the use of natural environment as well as the natural
3.7 REFERENCE
22. 22
1) Agarwal Bina 1985, Women and technology changes in
Agriculture. The Asian and African experience, London,
George Alien and Cruwin.
2) Anon 1998, Food ? Health ? Hope ? Genetic.
Engineering and World Hunger, Dorset UK. The Corner
House, Briefing No. 10.
3.8 QUESTION
Q.1. Write in short about the impact of modern science and
technology on environment ?

4
PERSPECTIVES OF ENVIRONMENTAL
ISSUES CULTURAL ECOLOGY
Contents –
4.0 Objective
4.1 Introduction
4.2 Cultural ecology in relation to man
4.3 Method of cultural ecology
4.4 Studies in Cultural ecology
4.5 Cultural ecology of India's sacred cattle
4.6 Gardening and other animals
4.7 Summary
4.8 References
4.9 Question
4.0 OBJECTIVES
1. To bring awareness among the students to understand and
develop close relation with environment.
2. To develop holistic approach among students to feel man
environment relationship taking into account technology and
socio cultural facts.
4.1 INTRODUCTION
Cultural ecology approach evolved in the understanding man-
environment relationship. It gives technology and culture a central
place in understanding human adaptation to the physical
environment. It proposes a feedback loop in the process of
23. 23
understanding human adaptation to environment. The methodology
of cultural ecology suggests holistic approach to understanding
man -environment relationships taking into account technology and
socio cultural factors.
The duality of ecology in relation to human beings has to be
understood, ecology implies adaptation of an organism to
environment. Since Darwin, environment has been conceived as
the total web of life where in all plant and animal speres interact
with one another and within the physical features or a particular unit
of territory. One can understand the human biological adaptation to
the environment in evolutionary terms. But man enters the
ecological scene not merely as a physical organism in relation to
other organisms in terms of physical characteristics, man
introduces the supra organic factor of culture. Thus two quite
different objectives are suggested in understanding cultural
ecology. First an understanding of organic functions and genetic
variations of man as purely biological species and second a
demonism of how culture is affected by its adaptation to
environment, this latter requires its own concepts and methods.
Man reacts to web of life as cultural animal and that makes the
study of Human Ecology unique.
Diversity of human societies cannot be understood as a simple
function of environment and resource. Human interaction to the
environment is mediated by culture a collection of specific
objectives, values, a body of knowledge and beliefs. Thus culture
itself is not static, it is adaptable and modifiable in relation to
physical conditions.
4.2 CULTURAL ECOLOGY IN RELATION TO MAN
Cultural ecology as a paradigm to understand man-environment
relationship was proposed by Julian Stew and has come to be
recognized at Stewarding Cultural Ecology paradigm-Cultural
ecology differs from other ecology studies in seeking to explain the
origin of particular cultural features or patterns which characterize
different areas, rather than to aim for general principles applicable
to any man-environment situation.
The concept of cultural ecology is less concerned with origin or
diffusion of technology and the fact that technology may be used
differently and entails different social arrangements in each
environment. Thus societies equipped with bows, spears, bush
burning, deadfall and other such hunting devices may differed
among them because of the nature of fauna and flora. Other
societies having about the same technological equipment may
exhibit other social patterns because the perception of the
environment differs to extend that the cultural adaptation must be
different. For example the Eskimo use bows and arrows but owing
24. 24
to the limited occurrence of fish and sea mammals their population
is so sparse that communal hunt is not rewarding. So they are
dispersed in family groups. The Nevada Shoshni are also
fragmented into family groups. In their case scarcity of game and
predominance of seeds as subsistence basis greatly restricted
economic co-operation and required dispersal of society into fairly
independent family groups.
A word of caution: Culturally prescribed ways may tend to
perpetuate themselves in the short run and entire patterns of
technology, land use, land tenure and social feature may be derived
entirely from culture. But over the millennia cultures indifferent
environment change tremendously, and these changes can be
basically traceable to new adaptations required by changing
technology and productive arrangement. Despite cultural barriers
useful arts have spread extremely widely and the instances in
which they have not been accepted became pre-existing cultural
patterns are insignificant.
4.3 METHOD OF CULTURAL ECOLOGY
Thus steward is interested in understanding the inter-relationship
between environment culture and technology as a complex inter
connected feedback loop in human societies. Although
environmental adaptation underlies all cultural ecology the
procedures must taken into account the complexity and level of
culture. He suggests three fundamental steps in the reconstruction
of the cultural ecology of a human society.
First, an interrelationship between productive technology and
environment must be analyzed. In primitive societies subsistence
devices are basic, weapons and instruments of hunting, in more
developed societies, agricultural and herding techniques and
manufacturing of crucial instruments must be considered. In idential
world capital and credit agreements, trade systems and the like are
curcial. Socially derived needs become increasingly important in
productive arrangements as culture develops. Second the behavior
patterns involved in the exploitation of a particular area by means of
particular technology must be analyzed. Subsistence pattern
impose very narrow limits on the general mode of life of people.
Gathering of wilduoifjtubess and vegetables is usually done by
women alone. Nothing is gained by co-operation while it may lead
to competition.
Hunting on the other hand may be collective or individual
depending on the nature of game available and the techniques
used, as well as on cultural history of cooperation or individualism.
4.4 STUDIES IN CULTURAL ECOLOGY, HYDRAULIC
CIVILIZATIONS.
25. 25
Steward studied the low energy consuming societies, their
technologies and environmental factors to validate his paradigm.
He demonstrated that, for the same technology different
communities located in different age, geo-climatic conditions
exhibited different social adaptation. Study of ancient complex
hydraulic civilization fn Egypt, India and China were compared by
Steward to indicate the developmental and socio-political
similarities in them inspite of geo-climatic variation and the crops
grown in these ancient semi-arid and arid, river valley civilizations.
In the irrigated areas interrelationship. The productivity of farming
was limited only by the amount of water that would be used in
irrigation. Metal tools and animal ploughs could not increase the
yield of irrigated areas beyond the limits imposed by water supply.
The era of regional florescence is identified as an era where
communities were weilded into small theocratic states that were
religious in nature. The relation of militarism. to the enlargement of
irrigation works and the expansion of states during the era are not
clear. There are regious where priesthood without the backing of
the military were able to create multi community states, but the
extent of irrigation is not clear. In Northern Peru militarism and
warefare is the manner in which the size of the state and
consequently the size of irrigation works were increased. Similarly
in Mesopotamia and Egypt. This happened later in China where,
the empire was established first.
4.5 CULTURAL ECOLOGY OF INDIA’S SACRED
CATTLE
Marvin Hanis reparted studies in cultural ecology about cows, pigs,
wars and 1974) A ford foundation study in 1959 concluded that
possibly half of India's cattle could be regarded as surplus in
relation to food supply. Harris through his cultural ecology approach
challenges this conclusion. He studies the cultural ecology of India's
sacred cattle. Hindus venerate cows as a symbol of everything that
is alive, so that there is no greater as sacrilege Hindu than killing a
cow. Cows in draught prone areas in peasant and urban economies
are important in various ways as demonstrated by him. Zebu cattle
have small bodies, energy storing humps on their back and greater
power o recuperation. These features are adopted to specific
conditions of Indian agriculture. The native breed is capable of
surviving for long periods with little food or water and are highly
resistant to the diseases and oxen‘s can work as long as they
continue to breadth. It is a part of the low energy, small scale, and
animal based system. They provide low energy substitutes for
tractors and cow. Indian cattle annually excrete about 700 million
tons of recoverable manure, half of it is used as fertilizers and the
rest is burned as fuel. The peasants use cow dung for plastering
floor and walls of their houses. The cow is the last desperate
26. 26
defense against money lenders. The scanty milk produced by the
cow is vital for food security of the poor families of the peasants.
He reported that non beef eating taboo applied only to the upper
castes and twice been castes of the Hindu society in India. This
taboo had persisted became it had an adaptive significance to the
society as a whole. It allowed food security in the form of animal
proteins to scheduled castes, especially during times of scarcity like
periodic draughts and famines. Thus meat eating is finely adjusted
to practical conditions. The meat-eating castes also tend to be the
leather working castes since they have a right to dispose of the skin
of the fallen cow. So despite cow love India manages to have a
huge leather craft industry. The whole complex needs to be further
understood in the light of economic and ecological significance. The
cattle domed compete with humans for land or the food supply, as
at best 20 percent of what the cattle eat cosmists of humanity
inedible substances most of it is fed to oxen‘s and water buffaloes
rather to dry and barrer cattle. The observed proportion of cows to
oxen‘s is not very different in India and Pakistan. So the theory that
religion is primarily responsible for high proportion of cow is refuted.
Finally contrary to expectation studies of energy costs and energy
yields show that India makes more efficient use of its cattle than the
United States. The ratio of total colures consumed per year to those
produced is 17 percent as against 4 percent for American beef
cattle raised in lunches. Thus according to him cow love is an active
e elements in a complex, finely articulated material and cultural
order. Cow love mobilizes the latent opacity of human being to
preserve in a low energy ecosystem, in which there is little room for
waste and indolence, cow love contributes to the adaptive
resilience of the human population by preserving temporarily dry or
barren but still useful animals by discouraging the growth of energy
intensive beef industry, by protecting cattle that fatten in public
domain or at landlords expense and by preserving the recovery
potential of the cattle population during draughts and famines.
He talked of similar ecological significance of wars and associated
rituals in another case study of the Marring community. The Marring
make war on each other following allegations of abduction of
women, rape the shooting of a pig in the garden theft of crops,
poaching and death or disease induced by witch craft. But the an-
swers to wars do not like in the participants consciousness. The
study of primitive war leads to the conclusion that war has been
part of an adoptive strategy associated with particular technological,
by demographic and ecological condition. This being the case when
humanity stands to loose more than it can possibly gain from war,
other means of resolving inter group conflicts will take its place.
Roy report studied the complex inter relationship, as resource
exploitation in a gardening community that husbanded pigs. He
studies the flow of energy among the Tesemba clan among the
27. 27
Marings in New Guinea, who practiced gardening with swine
husbandry for a millennium. The gardening of yam, cassava and
sweet potatoes provides the Tesemba with their daily energy ratio
and the swine‘s provide them with the emergency source of protein
through animal husbandry. Their way of gardening also makes the
best use of a fixed volume of space. They have developed a three
tiered ecosystem that exploits the micro climatic variations in the
different levels of the atmosphere to grow three different varieties of
tree crops. This type of gardening discourages plant specific pests
and takes advantage of slight variation in the habitat to protect top
soil and achieve a high level of photo synthetic efficiency. The
swine husbandry is supportive activity and they are a source of
animal protein during emergencies. They are slaughtered ritually
once or twice in the lifetime of an individual during war.
Each local Marring subgroup or clan holds a pig festival on the
average about once every twelve years. The entire festival
including various preparations, small-scale sacrifices and the final
massive slaughter - lasts about a year and is known in the Marring
language as a Kaiko. In the first two or three months following the
completion of Kaiko, the clan engages in armed combat with the
enemy camp leading to many casualties and eventual loss or gain
of territory. Additional pigs are sacrificed during the fighting and
both the victors and the vanquished soon find themselves entirely
benefit of adult pigs with which to curry favour from their respective
ancestors. Fighting ceases abruptly and the belligerents repair to
sacred spots to plant small trees known as rumbim. Every adult
male, from every dam clans men participate in this ritual by laying
hands on the rumbim sapling as it is put into the ground. The war
magician addresses the ancestors explaining that they have run out
of pigs, fighting is over and no resumption of hostilities will take
place as long as rumbim remains in the ground and they will direct
their efforts to raising pigs.
The burden of raising pigs falls mainly on the women who do the
gardening. Feeding a pig is equivalent of feeding a human being in
terms of food volume and type. Pigs compete with human in their
dietary consumption. As the population of pigs and human grows it
forces families to move their houses further a part over or wider
area. This dispersion lowers the security of the group in case of
renewed hostility. The women begin to complain about being
overworked and ticker with their children. Soon the men with considerable unanimity and without
counting the pigs agree that the moment has come to begin the
Kaiko. The warfare begins and the cycle is complete.
Within the limits set by the basic ecological and environmental
condition of the Marring all this has a practical explanation. Animal
proteins compared to plant proteins they generally eat, is more
concentrated and metabolically more effective. It makes good
ecological sense to raise pigs given their climate. Unlimited pig
28. 28
population can only lead to competition between men and pig. The
role of ancestor is to encourage maximum efforts at pig raising and
at the sometime to see to it that the pigs do not destroy women and
the gardens. The partial taboo is thus an ecologically effective
strategy is that system to maintain long term sustainability.
4.6 GARDENING AND OTHER ANIMALS
This type of gardening farms and animal complex at a symbiotic
and stable equilibrium is not very uncommon in the wooded hills
allover India. In the Western Ghats of India the Areca nut and
coconut gardens are very good examples of a complex ecosystem
very efficiently exploited by the natives. In Uttar Kannad district of
Karnataka a particular community of the Havoc Brahmins practice a
similar gardening and animal husbandry. The care of areca nut
garden is the nucleus around which life revolves in Uttar Kannada.
There gardens are located in the west evergreen forests of the
Western Ghats. Great care is taken to choose a site for the garden.
Red soapy soil is considered the best. The garden is ideally to be
faced earth, on the evening sun is believed to be doing harm. The
garden needs shelter from the direct sun and leaf manure, which is
procured by securing an outer belt of forest and bush wood. The
gardens are fenced with live thorns bushes and bamboo. A ditch
three to four deep surrounds the garden. Inside the garden
trenches run parallel to each other in the direction of the length of
the valley. The garden needs unfailing supply of water, which is
commonly brought from, spring. To keep the gar-den productive the
soil has to be manured once in two years, biological manure from
cattle husbanded mainly for this purpose and dry and wet twigs
branches and leaves are specially collected for this purpose. The
garden's being vegetarian only drink milk from the indigenous short
but study breeds of cattle. The local tribe communities employed as
contract labor however do consume beef and farm. They have
small plots of lands to grow paddy for domestic consumption and
the stalk is fed to the cattle in addition to grazing them in forest
lands. The gardens make use of the micro climatic variations in the
30 to 40 feet fall Areca nut palms. The gardens are interspersed
with banana trees, at the foot of the palms are planned cardamom
bushes and twinning around the palm stems are pepper and battle
leaf wires. Thus the gardens, animal husbanding, paddy farms and
the human communities for a homeostatic ecosystems where the
homeostatic is maintained by human being who act as mediators
for timely intervention in this resource complex and to reap the
profits from it. Their interventions are guided by their belief systems
about the functioning of the eco-systems and are built into their
work practices. This resource complex has existed for the part
several centuries with little or no change (Bapat J 1989)
4.7 SUMMARY
29. 29
Thus to conclude the cultural ecology paradigm for the fort time
acknowledges that the Man-environment relationship cannot be
understood using uni-linear causal paradigms. Infact the very idea
of aiming at universal laws on the lines of evolutionary adaptation
and national selection is not appropriate to understand man-
environment relationship. It requires unique methods and unique
paradigms that would take into account the world views of human
being including the role of culture and technology in human
adaptation to their environment. Human being to their environment
by modifying it through culture and technology. Thus there is a
feedback loop a functional interconnectedness that needs to be
incorporated in the theory that captures man environment
4.8 REFERENCES
1) Bapat Jyotsna 1989 Man environment relationship. Towards a
critical human ecology Ph.D dissertation, Dept. of H & SS, NT
Bombay (unpublished).
2) Hanis Marnn 1969, Rise of entomological theory. History of
theories in culture London, Route ledge and Kegan Paul.
Rapport Roy (1971), Flow of energy in an agricultural society,
scientific American 224, 3PP 117-132.
Steward Julian (1955), Theory of cultural change, Urbana
University of Illiois Press.
4.9 QUESTION
1) What are the salient features of cultural ecology ?

5
ENVIRONMENTAL DETERMINISM
AND POSSIBALISM
5.0 Objective
5.1 Introduction
5.2 Contribution of early anthropologists
5.3 Relation between anthropology archaeology
30. 30
5.4 Ecological theory and ethnic differentiation among human
population
5.5 Summary
5.6 References
5.7 Question
5.0 OBJECTIVE
1) To makes students aware about the ecological conditions and
direction of human development.
2) To acquaint students technological conditions and its impact on
social organization of society.
5.1 INTRODUCTION
Not only Prehisheria's but anthropologists too have used
archeological remains and linked them to their own discipline to
show the links between cultural and natural areas. The first
question they asked is Did specific ecological conditions stimulate
human development in a certain direction, did it have a limited
force, or if once stimulated, did development proceed on its own
5.2 CONTRIBUTION OF EARLY ANTHROPOLOGISTS
WISSLER
Broker and Clark Wissler were inspired by Otis Mason's 'Migration
and Food Quest". A study in the peopling of America" 1895. They
were convinced there was correspondence between cultural and
natural arras over the entire new world. Wissler indicated "there
was some kind of determinist influence had to be operating from
environment to culture. He was especially surprised by the fact that
when a map of North American 'ecological areas was placed over a
map of the cultural areas, not only did the two line up, but the
centers of the representative areas were the same for both the
cultural and natural features. He was baffled why it was so. Wissler
was convinced that in so far the environment influenced the cultural
areas, it was though the effects of food production. But he qualified,
the influence of the environment appears as a passive limiting
Agency rather than a casual factor in tribal life, and it became
difficult and confusing when he tried to explain the uniformity of
subsistence practices within a cultural area. He explained this by
the alleged advantage which occurs to the tribes of a region when
they all exploit the same resource. Wissler was thus unable to
formulate the essential ingredients in a homothetic approach to the
culture environment relationship. Wissler had no idea how, in
general, the techno-environmental conditions could be
nomothetically related to the social organizations and ideology.
31. 31
Darylt Forde on culture and environment
Forde was convinced that environment had a strong influenced in
shaping a peoples culture but was disinclined to express it in
homothetic terms. His main contribution say Marvin Hauis, was to
warn geographers that they could not hope to understand cultures
as mere reflexes of environment since each culture had the power
to take out of the environment or to stream those aspects of it which
hysterical events inclined to it to take into consideration.
Forde goes on to say that even if he could discover determinist
principles by which techno economic patterns could be related to
the environment, one should still confront an impasas in trying to
relate these patterns to the rest of the culture.
Julian steward, economic and social bases of primitive bands.
The above noted work of Steward is regarded as an important
achievement of anthropology; it is the first coherent statement of
how the interaction between culture and environment can be
studied in casual terms without reverting to the geographical
determination or historical particularize. There is a double focus first
on identification of cross culturally valid forms of social organization,
and secondly his explanation, Bonds occur among widely
separated hunting and gathering people in many different part of
the world. A bond is type of social organization distinguished by its
political autonomy, a small population made up of several nuclear
families whose access to land is controlled by ownership privileges
vested in the larger group. Having established the major type of
several dozen recorded cases, Steward classified them into
patrilineal, composite and matrilineal sub types. He took note of the
low level technologies applied to various types of habitants. His
contribution was to explain how despite the diversity of environment
and technologies associated with band organized societies, there
remained, underlying of ecological commonalties which gave rise to
a general type. This formation surpassed crude environmental
determinism which makes no provision for cultural variables, but it
also imposed human geography known as possibalism.
There were some superflows limitations, Steward had not in one
stroke severed her ties to particularism for instance, among the
many factors responsible for patrilinear Bands Steward noted that
the band size is restricted not by ecological relation but rather by
some social factor which nevertheless brought about the
occupation of small parcels of territory by correspondingly small
groups. Despite such lapses, steward intended to produce a
statement of nonmothetic causality based upon techno
environmental regulaties. It is unfortunate steward operated with a
non-statistical concept of causality. The signifiance of Steward's
analysis of bands is that it showed how the interaction between
technology and environment could explain most of the important
32. 32
structural and ideological features of low energy hunter gathers in
most of the known examples without utilising historical or other
ideographic modes of explanation. In his paper on Mutsib
communities Steward was emphasisng that given a certain set of
environmental and technologies conditions, the transition from band
to sib is highly predicatable in a sufficiently large sample.
Juxtaposing the new world sequences known from northern Peru
and central Mexico with available summaries of events in
Mesopotamia Egypt and North Chine, Steward demonstrated
degree of development parallelism which dwarfed all of the
stupendous phenomena reffered to by sapic. In all the five regions,
steward identified a sequence which involved a roughly paralled
development through the same stages. Stewards trial formulation of
the developmental sequence in the five centres of ancient
civilization was not intended to exhaust all the possible routes
which cultures have followed towards complex, state organization.
Rather the trajectories he outlined were those assumed to be
characteristics sequence of a particular type viz. irrigation or
hydraulic civilization stewards ideas at this point converged with the
theories of Karl Wittfogel.
Wittfogel - in 1926 Wittfogel had began to apply a cultural
ecological approach to the explanations of the pecularities of
Chinese and other 'Asiatic' societies. In Wittfogels early formulation
these system were characterised as mighty hydraulic bureaucracy,
whose despotic control over the densely populated ancient states of
China, India and Egypt arose from the techno-environmental
exigencies of large scale irrigation, and other fours of water control
in regions of scant rainfall. The realisation that the evolution of
oriental societies had followed a path substantially different from
those European was quite common among the scholars of
enlightenment. Wittfogels analysis of functional inter-dependence of
the main features of the social organisation and techno - economic
patterns of irrigation civilization led him to stress the general
importance of environmental parameters in understanding of social
5.3 RELATIONS BETWEEN ANTHROPOLOGY AND
ARCHAEOLOGY
The links between cultural anthropology and archaeology came in
late thirties and early forties with the excavations in Peru carried out
by W.D. strong and his student, Gordon Willey. In the view Valley, a
complex of domesticated beans, squash and cotton were identified
at the based of a large mound, with an estimated date of 2500 B.C.
A continuous evolutionary sequence was obtained in the mound ad
in the adjacent sites leading from incipient agriculture through
several stages of village life upto the lowland irrigation states which
were ultimately absorbed by the Inca empire, Of special interest in
33. 33
this sequence was the phase identified by Steward as the
formative, when maize was introduced and irrigation techniques
took over the main subsistence load. The entire sequence is wholly
intelligible as a product of endogamous forces, increasing
productivity, increasing population density, multiplication of village
sites, warfare inter village and later inter-valley co-ordination of
production processes, increasing social stratification and
bureaucratic control of production and distribution, centralization of
power, feedback to greater productivity, and population density. If
contacts with the old world had occurred during the 2500 to 3000
years which were required for the shift autonomous village to state
organisation, nothing vital to the dynamics of the process seems to
have resulted there from.
The only possible exception was maize, which obviously had not
been domesticated on the Peruvian coast. No wild ancestors of the
plant had been identified, wild ancestors of corn have been
identified in Mexico, but radio carbon 14 daks have confused a
period gradual experimentation with domerticated varieties
extending back to 7000 B.C. in the Tehuachan valley of central
Mexico. The proof that the American domesticated corn is taint
amount to a proof that they were capable of achieving every either
technologies innovation associated with the New world sequence
independently of diffusion from the old. Given the combination
Homo sapiens, a nutritive and hardy grain, semi arid valley, ample
sources of water terrain. Adaptable to irrigation, it was highly
probable that irrigation civilizations would evolve, not once but
again and again.
5.4 ECOLOGICAL THEORY AND ETHNIC
DIFFERENTATION AMONG HUMAN POPULATION.
How relevant is ecological theory to explain human ethnic
differentiation plant and animal ecologists have employed it. William
Abruzzi attempts to do it (Arbuzzi 1982 current anthropology vol.
2.3 P13) Arbuzzi first premises in that ecology is not necessarily a
biological science, rather ecological systems have been modelled
as energy flow system determined by the their odynamic principal
(Margaloff 1968 Odum 1971 pp37-85) Because ecological
principles areindependent of the specific biological communities
and they have structural similarities that suggest the value of their
being analysed from an unified ecological perspective. The
fundamental units of human and non human communities alike are
variables in size and comparison and respond to special and
temporal variation in abundance and distribution of resources. ,
Finally both human and non human transform potential energy into
social organisation, and the process that generate The division of
labour (resources partioning) appears to be important to the
organisation of human committees on they are to the evolution of
34. 34
non human systems. Abruzzin tries to saw the formation and
maintenance of ethnic boundaries may be one area of social
behaviour that could benefit for explicit application of ecological
theory. The traditional authropological use of ethnic unit concepts
resulted in naive oversimplification and is derived from a historical
approach. Traditional approaches based upon a static conception
of discrete ethnic groups proved incapable of dealing with the
dynamics of new concerns. A more faithfull recent approach to the
question of ethnic boundary formation have been those that
employed ecological or material focus and have concentrated upon
competition over scares resources in conjunction with the
application of labour required for efficient resources exploitation.
Ethnic groups are not different species. Species are genetic units
connected by ability to exchange hereditary material, while ethnic
groups are social units with much lesser degree of biological
integrity or meaning. The decisive criterion is not fertility of the
individuals but reproductive isolation of a propulaiton , Defining
species boundaries is by no means clear, fertility is not a criterion of
a species status among local population Population biologist and
ecologist have directly concerned themselves with mechanisms and
processes producting changes in species boundaries among the
local population and with the relation with speciation and species
replacement have to the evolution of encompassing ecological
committees. An ethnic unit is difficult to define. A cultunit defined by
Norot is interms of language, ecological adjustment and loclal
community structure. It is difficult to use socio-cultural traits to
define ethnicboundaries Problems associated with ethnic unit
boundaries arise from the contradiction of imposing a static
classificatory scheme no matter how necessary upon inherently
variable, evolutionary phenomenal. Ethnic units in this specific
committees, like local speries population are prevailing ecological
condition. The discreteness of species and ethnic units alike,
appear greater the more complex and broadly adapted members of
each class, perhaps became of greater breadth of their respective
niches and the evolutionary exclusion of class competition that this
Marriage assumes central importance in the definition and analysis
of an ethnic population. The extent of endogamy indicates the
degree of ethno differentiation within the community. Definition of
an ethnic population serve principally to distinguish that unit from
other less developing social groups. This suggest that the
organisation of an ethic population is more complex and
encompassing than that of other social units. Neither clear species
nor ethnic distinction is accepted by Aleruzzi. Rather, he says the
discreteness of species and ethnic population alike must be
recognized as determined buy the local ecological conditions and
then variable from one community to another and commonly within
the same commonly through time, since both species and ethnic
35. 35
boundaries function to regulate competing populations access to
resources, the recognition that in one care the proximate cause
(mechanism) of behaviour may be largely inherited while in the
other they may be primarily learned should not preclude the
possibility that the ultimate causes (selective pressures) in both
cases may be the same.
Anbuzzi explain the implication of selection theory for the farmation
of ethnic population. In certain human communities it may be
energetically cheaper for distinct population to exploit limited and
non-overlapping sets of resources, with each population trading its
surplus to neighbouring populations centred in different niches, than
one undifferentiated population to exploit the total range of available
resources. The distinct requirement imposed for successful
exploitation for instance of a herding or a hunting (nomadic) niche
contrasts sharply with those needed to occupy a farming niche. The
survival of gazing animal demands the animals be mobile in their
search for pastimes. Human population that exploit there animals
hunt like-wise be mobile. Farmers on the other hand, must remain
stationary to tend their land and crops. Each adaptation demands a
repertoire of supportive behaviour. An energetic advantage thus
clearly exists, under certain conditions, for distinct populations
concentrated in each of these two niches, rathy than one uniform
population exploiting both plant and animal resources.
The demand of extensive trade within pre-industrial communities
are effectively overcome by the concentration of trade in one
distinct population. Again for instance population agriculture
involved the use of large amounts of land for the purpose of raising
labour intensive cash crops. Since the demand for unskilled labour
limits its annual productive value, the labour in plantation system
has historically been obtained primarily through solvey, immigration,
or employment of migrant workers. There three context are
examples in anthropological literature of the evolution of distince
adaptations among pontentially competing population. They also
furnish.instances of pronounced ethnic distinctions within the
human communities. Over competition, while not absent has been
reduced through the development of more or less symbolic
relations, imposed in past by the greater power of the dominant
population, and through the institution of complex regulations
regarding ethnic interactions, particularly intermarriage. Inequility
exists in such relationships however, constant with comparative
energy flows in other ecological communities ethnic interaction with
human communities are asymmetrical and function to maintain,
even increase, the differential organisation and control that exists.
Abruzzi goes on to argue niche diversification through competitive
exclusion may result in human population achieving an equilibrium
in which they exchange the products of their differentiated niches.
The potential for developing symbiotic relationships is perhaps
more charactestics of human competitors than of most other
36. 36
population. This is illustrated by consistent development of
interdependence between contiguous nomadic are sendentary
population throughout much of Africa and the Middle East. As with
non-human population, however competition among human
population's is potentially variable.
In so much as endogamy maintains local ethnic distinction,
selection would specifically favour those mechanisms that reduced
the incidence of inter marriage among the ethnic populations in
communities where ethnic specialisation occurs. Although the
specific cluster of isolating mechanisms varies from one human
community to another, understandable ecological conditions the
number of independent isolating mechanisms separating two or
more local ethnic population should increase with time.
Reproductive isolation underlies the recurring pattern of ethnic
relations associated with the expanding pioneer populations. Initial
flexible interactive evolve into more rigid stereotype exchanges on
the number of immigrants increase and the competition over
resources intensifies Anglo-American relations in the American wert
is said to provide an example of this pattern.
The formation and maintenance of distinct ethnic population is
viewed as function of niche diversification at the community level.
The selective advantage of clear ethnic, boundaries, evolves
primarily from the demands imposed upon labour. Labour demands
inturn are viewed by Abrazzi as a function of the specific pattern
and intensity of resources exploitation imported upon the local
communities, for example by the population or colonial domination.
Where the 0& demands of a specific productive system places a
selective premiums upon discrete populations, the efficiency .of
human information processing and group co-ordination are
increased by the existence of clear and unambiguous boundaries
separating these populations. Clear ethnic boundaries are said to _\
\^function to improve productive efficiency by reducing the
likelihood of competition between members of interacting
population within the community.
Since the organisation of population within any ecological
community is a function of the availability and distribution of
resources, break down in the barriers to marriage betweencthnic
population results from a change in the conditions of resource
exploitation to a situation favouring a different community
organization, perhaps even one uniform population. The
emergence decline, and transformation of socially significant ethnic
units have been ubiquitous and may be seen as adaptive
responses to the change of material demand imposed at the
community level.
5.5 SUMMARY
37. 37
Inspired by the archaeological finding is North and South American,
anthropologists who were probing into the life and living of the local
people were inspires to investigates into the question of
environmental influences on their pattern of growing, starting first
with agriculture. They were by and large careful not to fall into the
trap of environmental determination and struggled hard also to
avoid environmental possiblism or have an geography. These
questions are looked at historically, starting with Clarke Wissler.
The field of investigation has widened out only two instances a
pattern of agricultural change and ethnic differentation of a
population are given as illustrative material in this section.
5.6 REFERENCES
1. Marvin Hawis - Rise of anthropological theory
2. William Abrizzi 1982, Ecological theory and ethnic
differentation among human population current anthropology
vol. 23
3. J. L. Collins 1982, seasonal migration as on cultural response.
Current anthropology vol 24, 1, Feb 1983.
5.7 QUESTION
1) Briefly discuss ecological determination and possibalism.

6
CLASSICAL SOCIOLOGICAL THEORY
6.0 Objective
6.1 Introduction
6.2 Environmental changes and rapid degradation of environment
Labor in
6.3 Transition
6.4 Origin of tools
6.5 Anthomy Gidden
6.6 Criticism on the view of Giddens
6.7 Andre Gorz and political economy
6.8 Summary
6.9 References
6.10 Question
38. 38
6.0 OBJECTIVE
1) To make students aware about the environmental degradation
and the perception of classical sociologist on environment.
2) To acquaint students with the view of contemporary thinkers
and classical thinkers on environment degradation.
6.1 INTRODUCTION
Contemporary social thinkers say a lot about environmental
degradation, however this perception is not shared by the classical
sociologist e.g. comte and Spencer consider sociology to be directly
dependent on biology. Weber has shown little concerned with the
natural world. Durkheim did make the u natural world a casual
factor in human history but non-classical theorists raised casual
question on structural origin of environmental degradation.
6.2 ENVIRONMENTAL CHANGES AND RAPID
DEGRADATION OF ENVIRONMENT.
What have contemporary social theorists to say about
environmental degradation. The theoretical legacy left by classical
masters like Comte and Spencer, Dukheim and webs have
substantial limitations. U Comte and Spencer consider sociology to
be epistemologically and ontologically dependent on and
subordinate to biology. Comte only draw on biological analogies
and metaphors of from and function and the relationship between
organism and organs to explore the interrelationship of individuals
and institution in modern societies, Spencer would rightly be called
Darwinist although he anticipated Darwin. Weber shows little
concern with the natural world. Though Durkheim did make natural
world a casual factor in human history, none of there classical
theorist raise crucial questions on the structural origins of
environment degradation. Classical sociological theories therefore,
have substantial limitation to explain environmental changes and its
rapid degradation.
Marx, a classical theorist, on the other hand made humans a part of
nature, and he laid the foundation for political economy. Talcott
persons one of the great masters and one of the foremost theorists
of the present Century gives a static model of human society and
has nothing to say on natural environment. In other words, classical
sociological theory does not possess an adequate conceptual
framework to understand complex inter relation between a society
and its environment, how the societies have transferred the natural
environment and the negative consequences of such
39. 39
transformation on society. Marx, also a classical theorist, on the
other hand made human a part of nature and how they enter into
relationship with nature and with one another and the relations are
not only social but simultaneously economic and political. In other
worlds, he was abo making room for political economy.
Labor in transition
The first operations which our ancestors gradually learned to adopt
their hands during the thousands of year of transition could have
been only a very simple one. Even the most primitive are for
superior. Much time must have passed before the human hands
fashioned flint into a Knife. This was decisive step indicating how
the hands become free and would began to attain greater dexterity
and flexibility and this would be inherited from generation to
Engels says that the hands is not only an organ of labor but it is
also a product of labor, gained by repeated effort and passed on to
the progeny. It was not merely the hand that evolved but the rest of
the body too e.g. The feet for the erect gait kept pace with it as a
result of laws of correlation of growth, as Darvin called it. Mastery
over nature began with the development of the hand, with labor,
and widened man's horizon. With every advance he was continually
discovering new, hither to unknown properties in natural objects.
One the other hand, the development of labor necessarily helped to
bring the members of society closes together by increasing the
cases of mutual support and joint activity, by making clear the
advantage of joint activity to each individual. In short, they had
something to say to each other. Necessity creates an organ, the
undeveloped larynx developed modulations, and the organ of the
mouth gradually learned to pronounce one articulate sound after
another. In other words Engels tried to establish the origin of
language through the process of labor. No other animal requires
articulate speech. The dog and the horse through association with
man have developed such a good ear that they easily learn to
understand any language within their range of concepts.
First labor, than with it speech there was the two most essential
stinule under which the brain of the ape changed into that of the
man. Hand in hand with the development of brain went the
development of its most immediate senses and the corresponding
refinement of hearing and the other senses, the eye, smell and
touch. The ape hardly possess the sense of touch. The dog has a
keener sense of smell than man, but it does not distinguish a
hundredth part of the odors that for men are definite signs devoting
different things. The reaction on labor and speech on the
development of the brain and its attendant senses, of the increasing
clarity of consciousness, power of abstraction and conclusion, gave
labor and speech an ever - renewed impulse to further
development. This development did not reach its conclusion when