Biology 3445F Lecture Notes - Lecture 21: Omnivore, Competitive Exclusion Principle, Dendrogram
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Biomass is to runs as species is to player, and as ecologist is to brad pitt. High fd value in a community indicates greater distinctiveness among community members, and is taken to represent greater niche complementarity http://evol-eco. blogspot. ca/2011/08/how-is-species-like-baseball-player. html. Last week: bef relationships use of species richness. Trait-based approaches long history in community ecology = the niche! Functional diversity = better metric for bef studies. Goal: develop a predictive framework for understanding consequences of global change on biodiversity and ecosystem function based on species traits (niche-factored), what species do. Physical (e. g. plant branching pattern, predator tooth morphology) Define: any measurable feature of an individual that potentially affects performance or fitness. Biochemical (e. g. plant photosynthetic pathway, presence of secondary metabolites) Behavioural (e. g. nocturnal vs. diurnal foraging, females cannibalizing males) Temporal or phenological (e. g. flowering time, pelagic duration of larval stage: phenological: seasonal/daily/temporal stages which define trait.
