BSCI 1511 Chapter Notes - Chapter 54: Mimic Octopus, Ecological Niche, Camouflage

• School: Vanderbilt University
• Department: Biological Sciences
• Course: BSCI 1511
• Professor: Johnson Carl

Document Summary

Community: group of populations of different species living close enough to interact. Interspecific interactions: interactions with individuals of other species in the community predations, competition, herbivory, symbiosis (parasitism, mutualism, commensalism), and facilitation. Competition: +/- interaction that occurs when individuals of different species compete for a resource that limits their growth and survival (weeds and garden plants for soil) Competitive exclusion: when combining two species that both compete for the same resources, one will eventually go extinct. Ecological niche: sum of a species" use of biotic and abiotic resources in its environment: two species cannot coexist if their niches are identical. Resource partitioning: differentiation of niches that enables a similar species to coexist in a community. Fundamental niche niche potentially occupied by that species vs. realized niche portion of its fundamental niche that it actually occupies. Character displacement: tendency for characteristics to diverge more in sympatric than in allopatric populations of two species.