BIO 2129 Lecture Notes - Niche Differentiation, Phenotypic Plasticity, Character Displacement
19 Aug 2014
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Gendron 373 jkerr@uottawa. ca: competitive exclusion can drive one of two strong competitors extinct (according limiting similarity), many species have sufficient phenotypic plasticity to immediately alter their resource usage: niche partitioning. Black-throated green warbler: over evolutionary time, niche partitioning can lead to character displacement. 1: the classic example of character displacement is that of darwin"s finches (geospiza spp. ) in the. All evolved from a single common ancestor that somehow made it to the isolated islands. Los hermanos: other, less-celebrated examples abound (e. g. kawano 2002): 164 studies based on field research: he subdivides competition into 6 forms: Consumptive exploitation of food (e. g. prey) = r. 3 competition is less pervasive: more stringent criteria were used to detect, a second review (connell 1983) suggests that competition effects: Competition present only when a change in abundance of one species led to inverse abundance change in another species (compensatory dynamics).
