Alexender von Humboldt during his extensive explorations in South American jungles made the following observations:
• Within a region species richness increases with increasing explored area but only upto a limit.
• This relation for a wide variety of taxa turns out to be a rectangular hyperbola.
‘r’ represents the intrinsic rate of natural increase. It is an important parameter for assessing impacts of any biotic or abiotic factor on population growth.
Rate this question :