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Title      : MSc Tech 104 Ecology and Environment
Subject      : Environmental Science and Technology
copyright © 2018   : Karnataka State Open University
Author      : KSOU
Publisher      : Karnataka State Open University
Chapters/Pages      : 12/357
Total Price      : Rs.      : 243
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Definition, Principles and Scope of Environmental Science Total views (424)  
Environmental science encompasses many interconnected issues involving human population,earth's natural resources, environmental pollution etc and combines information from many disciplines,such as biology, geography, geology, chemistry,physics,economics,sociology, demography (the study of populations), cultural anthropology, natural resources management, agriculture, engineering, law,politics, an ......
Pages: 36
Price: Rs 0   
Introduction to Biosphere, Lithosphere, Hydrosphere and Atmosphere Total views (415)  
The size and shape of the earth was a mystery for thousands of years. Most people thought the land and seas were flat. They were afraid that if they traveled too far in one direction, they would fall off the edge. Explorers who sailed to the limits of known navigation were considered crazy and on paths to destruction.
Pages: 22
Price: Rs 16.5   
Aquatic and Terrestrial Ecosystems Total views (416)  
An ecosystem is a group of biotic communities of species interacting with one another and with their non-living environment exchanging energy and matter. Now ecology is often defined as the study of ecosystems,an ecosystem is an integrated unit consisting of interacting plants,animals and microorganisms whose survival depends upon the maintenance and regulation of their biotic and abiotic structur ......
Pages: 31
Price: Rs 23.25   
Limiting Factors and Their Tolerance Total views (412)  
A factor present in an environment that controls a process , particularly the growth,abundance or distribution of population of organisms in an ecosystem.The concept is based upon the Law of the Minimum, which states that the functioning of an Organism is controlled or limited by that essential environmental factor or combination of factors present in the least favorable amount that may not be con ......
Pages: 22
Price: Rs 16.5   
Definition, Principles and Scope of Ecosystem Total views (416)  
An ecosystem was defined as a dynamic entity composed of a biological community and its associated abiotic environment. Ecosytems are also always undergoing alterations to their biotic and abiotic components. Some of these alterations begin first with a change in the state of one component of the ecosystem.
Pages: 37
Price: Rs 27.75   
Homeostasis of Environment Total views (416)  
The tendency of an ecosystem to return to a state of equilibrium is referred to as homeostasis. Ecosystems have a unique property of self-regulation.The ecosystem comprising various sub-components of biotic and abiotic nature, which are inter-linked and interdependent,have an inherent property to resist change. That means, the ecosystems have a property to tolerate external disturbance or stress. ......
Pages: 30
Price: Rs 22.5   
Population Dynamics Total views (417)  
Population dynamics is the branch of life sciences that studies short- and long-term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way populations are affected by birth and death rates, and by immigration and emigration, and studies topics such as ageing populations or population ......
Pages: 34
Price: Rs 25.5   
Density Dependent and Density Independent Factors Total views (416)  
Density represents the numerical strength of a species in the community in any unit area. Frequency does not provide correct idea of the distribution of any species in particular area, unless it is correlated with other characters, like density etc . The inherent tendency of all animal populations is to increase in number. But this increase in number is, however, not infinite since the carrying ca ......
Pages: 35
Price: Rs 26.25   
Common Flora and Fauna in India Total views (358)  
Indian subcontinent is unique in having great natural beauty in its different biomes and also in possessing a rich and diverse wildlife fauna. India has different types of climate and topography in different parts of the country and these variations have induced enormous variability in flora and fauna. India has a rich heritage of biological diversity and occupies the tenth position among the plan ......
Pages: 28
Price: Rs 21   
Ecotone, Edge Effect, Ecological Niche and Equivalents Total views (368)  
An ecotone is a biologically rich area with very high species diversity. In some cases.the number of species and the population density of some of the species are greater in the ecotones than in the adjacent ecosystems.
Pages: 28
Price: Rs 21   
Food Production and Chain Losses Total views (376)  
This unit helps students in understanding the process of food production and food chain losses. They will also be able to understand the nature and production of food from land and sea and the methods being followed to increase the yield.
Pages: 28
Price: Rs 21   
Biomes and Aquatic Life Zones Total views (375)  
Biomes are the earth's largest storehouse of biodiversity. Many of these species have developed over the time in highly specialized niches and that makes them more vulnerable to extinction when their natural home or niche is destroyed . About 50 to 80% of global biodiversity lies in these rain forests. More than one-fourth of the world's prescription drugs are extracted from plants growing in trop ......
Pages: 26
Price: Rs 19.5   

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