ENV100Y5 Lecture Notes - Lecture 17: Ecological Niche
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ENV100Y5 Full Course Notes
Verified Note
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Document Summary
Population ecology = quantitative dynamics of population the numbers of population, is it growing/shrinking, how do these populations interact with environment. Community ecology = interactions among species preys, competitions. Ecosystem ecology = living + nonliving components of systems fluxes, how carbon moves. Habitat = environment where organism lives a habitat for ant isn"t the same as a habitat for a moose (scale depends on the organism) Habitat selection = using habitats for resources, its non-random. We fragment habitats to make roads human activity. Niche = organism"s use of resources and its functional role in community like a scavenger. It"s the sum of all activities + relationships a species has. Fundamental niche = the potential niche, the niche that would do well if there was no competition what that organism would do without competitors. Realized niche = the actual niche, what the organism does because of species interactions. + competing for resources it"s a subset of the fundamental niche (its smaller)
