BIOL 308 Lecture Notes - Lecture 17: Macroecology, Insular Biogeography
Document Summary
How many species can coexist if they are competing for the same resource (recall inverse of community matrix determines whether species pose positive or negative force) Diversity describes one property of the community and is often quantified as the number of species. Proportion of species, the way that total biomass in community is distributed (macroecology) Species is only to take a proportion of system biomass. In theory, as community expand, the chance of detecting a different species should increase. Island biogeography theory (of a defined area)-by macarthur and wilson. Defined at the level of species (meta population), no growth/death of individuals involved. Colonization of an island is independent on other islands. Each species can colonize the island from mainland as a function of distance, and can go extinct at any moment. Species can only colonize only when it is not already present on the island. Only factors of diversity are size and distance of the islands.
