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Ecosystem
An ecosystem is a self sustaining structural and functional unit of the biosphere. The ecosystem may be large or small. In the biosphere several ecosystems exist. Usually there is exchange of material and energy between adjoining ecosystems. Ecosystems..
Ecosystem - Definition
An ecosystem may be natural (like forest, lake, ocean etc) or man-made (such as an aquarium, a crop field etc), temporary (like a rainfed pond) or permanent (like a lake, forest, etc), aquatic (such as pond, ocean etc) or terrestrial (like grassland, forest, etc..
An ecosystem may be natural (like forest, lake, ocean etc) or man-made (such as an aquarium, a crop field etc), temporary (like a rainfed pond) or permanent (like a lake, forest, etc), aquatic (such as pond, ocean etc) or terrestrial (like grassland, forest, etc..Pyramid of Numbers
"Pyramid of numbers is the graphic representation of number of individuals per unit area of various trophic levels stepwise with producers forming the base and top carnivores the tip..
"Pyramid of numbers is the graphic representation of number of individuals per unit area of various trophic levels stepwise with producers forming the base and top carnivores the tip..Food Web
.g., tigers normally do not eat fish or crabs, but Sunderbans they are forced to feed on them in the absence of their natural pre..
.g., tigers normally do not eat fish or crabs, but Sunderbans they are forced to feed on them in the absence of their natural pre..Types of Food Chains
Grazing food chain is generally seen in ecosystems such as grassland, pond or lake where a substantial part of the net primary production is grazed on by herbivores (cattle and rodents). Usually upto 50% of the NPP is grazed on by these animals in their respective eco..
Biotic Components
It comprises the living part of the environment, which includes the association of a number of interrelated populations belonging to different species in a common environment. The populations are that of animal community, plant community and microbial community. Biotic community is distinguished i..
It comprises the living part of the environment, which includes the association of a number of interrelated populations belonging to different species in a common environment. The populations are that of animal community, plant community and microbial community. Biotic community is distinguished i..Terrestrial Biomes
Mainly on the basis of latitude and amount and periodicity of rainfall, terrestrial biomes are classified into several types - tundra, taiga, deciduous forests, tropical rain forests, chapparal, savannah, grassland and desert. These biomes are also referred as 'latitude biomes..
Mainly on the basis of latitude and amount and periodicity of rainfall, terrestrial biomes are classified into several types - tundra, taiga, deciduous forests, tropical rain forests, chapparal, savannah, grassland and desert. These biomes are also referred as 'latitude biomes..Food Chains and Food Webs
While studying the biotic components in an ecosystem we have realised that food prepared by green plants is consumed by a series of consumers, both herbivores and carnivores, and finally broken down into their elements and released back into nature by decomposers in nature. The nutritiona..
While studying the biotic components in an ecosystem we have realised that food prepared by green plants is consumed by a series of consumers, both herbivores and carnivores, and finally broken down into their elements and released back into nature by decomposers in nature. The nutritiona..Summary
The biotic and abiotic components form an interacting system called 'ecosystem'. Producers, consumers and decomposers are the various trophic levels, which are linked by their food relationship forming a 'food chain'. Several food chains are interrelated and interconnected to form a netwo..
Laws Governing Energy Transformations
Energy conserving efficiency is 1.5% for grassland, 0.9% for savannah, 0.81% for mixed forest, 5% for modern crops and 10 - 12% for sugarcane field. Thus in an ecosystem there is, a) constant flow or transfer of energy from sunlight through plants (producers) to animals (consume..
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