Biology 1001A Lecture Notes - Lecture 16: Reciprocal Altruism, Haplodiploidy, Eusociality
24 Nov 2017
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Lecture 16 notes: advantages and disadvantages of living in a group. Groups of cooperating predators frequently capture prey more effectively than they would on their own prey subject to intense predation may benefit from group defence. This can mean more pairs of watchful eyes or ears to detect an approaching danger. When you are part of a group that is attacked, it may be someone other than you that is captured, diluting the risk to any one-group member. Haplodiploidy- a pattern of sex determination in insects in which females are diploid and males are haploid: calculate degree of relatedness between two individuals, given the type of relationship (parent-offspring, cousins, etc) 4. identify why haplodiploidy can favour high levels of cooperation in social insects. When individuals increase each others fitness it cooperation. When one individual benefits and the other does not is known as competition. When the actors fitness decreases and the recipients fitness increases is known as altruism.
