BIOL 28600 Lecture Notes - Lecture 2: Herbivore, Keystone Species, Benthic Zone

• School: Purdue University
• Department: Biological Sciences
• Course: BIOL 28600
• Professor: Joshua Springer

Document Summary

Rodents of similar size in same guild should coexist less frequently than. Prediction 1 holds more strongly for species of similar body ize than for. Studies of coexisting granivorous rodents reveal size relationships that support. Neutral model - concept that communities are random assemblages of species physiologically tolerant of the abiotic conditions. These rodents have very similar size relationships across the us. This could be due to competition structuring the composition of a community if competition separates the niches of coexisting species. expected by chance species of very different size. If species from other guilds, not expected to compete directly, so co occurrence becomes random associations were negative. So pairs of species this similar did not occur. This holds prediction 1 and supports that competition structures the size relationship in desert rodent communities: consider the niche data robert mcarthur collected on five species of warblers.