ECOSYSTEM
IMPORTANT TERMS:
· Aboriculture:Cultivation and management of individual specimens of ornamental trees.
· Agroecosystem:Anthropogenic or manmade ecosystem, basically agricultural fields.
· Biogeochemicals (Biogenetic Nutrients): The elements provided by the earth to the living organisms.
· Biogeochemical Cycle: Movement or circulation of biogenetic nutrients through the living and non-living components of the biosphere or any ecosystem.
· Biotic Community: A group of different populations inhabiting in a common environment and interacting with one another.
· Biotic Succession: The change in biotic communities in an orderly sequence in an area resulting in establishment of stable or climax community.
· Canopy: The part of woodland or forest community that is formed by the trees.
· Coldest Place: Antartic with air temperature of -880C. Second coldest is Dhar (India) with temperature of -720C.
· Detritivores:Detritus feeding invertebrates which breakdown detritus into small pieces.
· Detritus:Dead plant parts and animal remains.
· Ecological Efficiencies: Theratio between the energy assimilated over the energy available between two trophic levels.
· Ecosystem:A segment of nature consisting of communities of living beings and physical environment which interact and exchange materials between them.
· Food chain: The transfer of energy from one trophic level to the next trophic level through a series of organisms with repeated eating and being eaten.
· Food Web:A network of food chains, which are interconnected at various trophic levels. So as to form a number of feeding connections amongst different organisms of an ecosystem.
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