Definitions for nestedness
This page provides all possible meanings and translations of the word nestedness
A measure of the order in an ecological system
Nestedness is a measure of order in an ecological system, referring to the order in which the number of species is related to area or other factors. The more a system is "nested" the more it is organized. Imagine island communities at different distances from the mainland. Then we would expect islands farther away to contain fewer species, and these species to be present on all islands that are closer to the mainland. In this case, the species-island-matrix would be highly nested. If, on the other hand, all species have the same dispersal ability, population size etc. on the mainland, then island communities might simply be random draws from the mainland pool, and the species-island-matrix would not display any significant nestedness.
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