UNI101Y1 Study Guide - Ecological Niche, Beta Diversity, Species Richness
16 Feb 2013
School
Department
Course
Professor
Document Summary
Bio120h lisa zhao 2011 | page 3. Competition has a major role in species sorting. Thus, each species should be able to maintain itself over only a narrow range of most adapted habitats. Eeccoollooggiiccaall rreelleeaassee: expansion of habitat and resource use and increase in abundance by a population in a region of low species richness. Ex. island species (occur in greater d and expand into habitats that would be filled by other species on the mainland) Islands w/ fewer species, species occur in higher abundance and live in more habitats (broader realized niche) Diver sit y c an b e un der st o o d in t er ms o f n ic h e r elat ion sh ips. Fundamental niche represents the range of envmtal conditions, habitat structures, and resource qualities w/in which an indiv. or species can survive and reproduce. Niche overlap depends on the level of competition b/w species.
