BIOL 375 Lecture Notes - Lecture 11: Glucocorticoid, Dwarf Cichlid, Scram
11 Aug 2016
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What"s worth fighting over is going to vary from species to species. Likely a resource that is important, but also limited. (don"t fight for o2). Inclusive fitness can also inform conflict in families: only fight for limited resources, resource value less important than resource rarity. Kinship and conflict: kinship explains cooperation in families, but also explains conflict, parent/offspring conflict b. i. Parents should invest in offspring, but investing too much impedes creation of other offspring b. ii. Offspring are often weak and high b from parental assistance. Many examples of extraordinary parental care, particularly by mothers. If they invest all their energy in one offspring, hurts future offspring production. An r of 0. 5 is great, but best is to have lots of young. b. iii. For offspring, r to sib is 0. 5, while r to self is 1. 0 b. iii. 1. Thus, value investment in self twice as much as investment in sib b. iii. 2. For full sib, parent wants to maximize b-c b. iii. 3.
