BIO203H5 Study Guide - Final Guide: Seral Community, Unit, Landscape Ecology
Document Summary
Set of subpopulations that are connected by dispersal or movements in and out of the region. There is always a core population where dispersal is the highest and emigration and it has the lowest risk of extinction. Metapopulation as a whole never changes but minor changes in sub pop. Suitable habitat that occurs in discrete patches:- it has to be large enough to support breeding populations: subpopulation cannot be too isolated, every subpopulation is substantially at risk of extinction ( including the largest subpop) Colonization= the movement of individuals from occupied patched ( existing local populations) to unoccupied patches ( new local populations) When these individuals are moving across other habitat patches they don"t colonize in them because they don"t fit their feeding or breeding type. The prob with colonization is that these ind are at some risk of failing to find a habitat patch that fits their requirements. Dispersal is a key feature in metapopulation:
