PSYCH 3T03 Study Guide - Final Guide: Eurasian Oystercatcher, Equilibrium Point, Northern Bobwhite
17 Apr 2018
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Document Summary
Friday, april 13, 2018: behavioural ecologists can test hypotheses about the adaptive value of anti-predator behaviours and foraging tactics via the comparative method. In contrast, unrelated species subject to the same pressures are predicted to have evolved similar behavioural characteristics, producing examples of convergent evolution. Note: behavioural ecologists assume the traits they are studying have adaptive value (i. e. continue to tness) Natural selection must wait for mutations that cause di erence in reproductive success of di erent allele carriers to occur by chance. Certain positive genes may be pleiotropic such that they have negative e ects (such as misdirected parental care) Coevolution results in predators evolving counter-adaptations (i. e. the great arms race) Likely that ancestral gull was ground-nesting species with many nest-hunting predators- most of today"s modern gulls nest on the ground and exhibit mobbing behaviour- i. e. all gulls very similar.
