BIOL 1001 Study Guide - Final Guide: Frequency-Dependent Selection, Interspecific Competition, Niche Differentiation
6 Apr 2017
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Summarize, providing an example for each, the different types of interspecific interactions & their effects on the species involved, explain why competition is -/- even when there is a winter. Identify a given scenario the types of interactions involved and the effect on the species involved. Coevolution: interacting species evolve together- each is a strong selective force on each other. Competition: occurs when individuals use the same resources-resulting in lower fitness for both (-/-). When both species are present & fighting, there is limited food available for them, which reduced fitness. Even if one wins & gets most, they still lose some. Consumption: occurs when one organisms eat or absorbs nutrients from another. The interaction increases the consumer"s fitness, but decreases the victim"s fitness (+/-) Mutualism: when two species interact in a way that confers fitness benefits to both (+/+)
