Unformatted text preview: only one behavior serves both functions: "choking" behavior is both defensive and part of mate recognition/pair formation. This is seen as an adaptive behavioral shift wit respect to the nest location (steep cliff). There are many behaviors that at first appearance do not seem "adaptive". Infanticide in lions was first viewed as "aberrant" behavior by abnormal individuals because it was not "good for the species" (male lions displace other males from groups of females and their offspring, and frequently kill the cubs). It is true that killing infants is not, in the short term, an effective means of increasing population numbers of a species. BUT, we now know ( post W.D. Hamilton's 1963, 1964 papers on inclusive fitness and kin selection and G. C. Williams book on Adaptation and Natural Selection) that the more appropriate way to address such problems is to think about them in the context of whether the behavior is good for the individual ....
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- Fall '10
- Microbiology, Kin selection, G. C. Williams, advertising nest site, adaptive behavioral shift, mate recognition/pair formation