Primates 2 0.0 / 5 ? BiologyPrimatologyUniversityNone Created by: Elysia_DaviesCreated on: 19-05-17 16:00 Hylobates lar White handed gibbon 1 of 21 Why arn't gibbons monogamous 25% polyandry, territory overlap, divorce of pairs, EPC 2 of 21 Species of gibbon with polygyny Hylobates pileatus 3 of 21 The intesnity of the male gibbon code Signals fitness of the f and M holding powe 4 of 21 Why do gibbons have low levels f aggression between groups High levels of relatedness between groups 5 of 21 Ontogenesis Individual development 6 of 21 precocial When born the infant can move around on its own, advanced 7 of 21 Altricial carried when born the infant cannot move around on its own, very vulnerable, carried by mother or allomother 8 of 21 Precocial milk macromolecule Sugar 9 of 21 Altricial carried macromolecule Protein 10 of 21 Altricial parked macromolecule fat 11 of 21 Lactation amenorhea When female infertile when lactating 12 of 21 Weaning conflict mother wishes to cease lactating, infant want to continue feeding 13 of 21 Fast breeding MacArthur and E.O Wilson, 1967 14 of 21 Slow breeding Piank, 1970 15 of 21 Fast breeding unpredictable environment, not limited by K only by r, 16 of 21 slow breeding stable environment, limited by K not r 17 of 21 Why are humans altricial extra uterine pregnancy, babies brain is too big, has to be born early even though are K selected 18 of 21 why is sex ratio male biased more M miscrriages, fewer repair mechanisms for males, a less fit male will not go to term 19 of 21 Trivers and Willard hypothesis, 1973 high ranking female have more resources than low ranking, so favour expensive sons 20 of 21 Local resource competitionn, Silk et al., 1981 matrilocal, rank inherited on matrilines, high ranking F have more F offspring 21 of 21
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