Monday 11 July 2011

Definitions

Biogeochemical Cycle

The cyclic pathway through which chemical elements move from the environment to organisms and back to the environment. These are also known as nutrient cycles.

Example- Carbon Cycle, Nytrogen Cycle, Phosphorus Cycle, sulpher Cycle.



Biotic Potential or Reroductive Potential

It is the inherent capacity of population to increase under optimal conditions.

It is calclated as the mltiple of number of youngw produced at each reproduction and number of reproductions in a given period of time.



Carrying Capicity

"A level above whichno major increase in population density occure".

or

"the feeding capicity of an ecosystem to a population of a species under the provided set of conditions".









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