Biology 1001A Lecture Notes - Lecture 17: Inclusive Fitness, Reciprocal Altruism, Eusociality
11 Dec 2015
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Identify the meanings of kin selection, altruism, reciprocal altruism, and eusocial: kin selection individuals are more likely to help close relatives because it still propagates some of their own alleles. altruism doing something that enhances the situation of another individual. reciprocal altruism individuals will help non relatives is they are likely to return the favor in the future (especially if both benefit from relationship). eusocial thousands of related individuals, live and work together for the benefit one a single queen and her mates. Examples of cooperation, competition, spite, and altruism: cooperation both recipient and actor benefit, wolves and elephants. competition fighting for something to benefit yourself (everyday world!). spite both actor and recipient harmed, not in the natural world, suicide bombers in human society. altruism actor is harmed and recipient is benefitted, very rare, an adult squirrel calls out to young one to warn danger even though it exposes itself.
