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6. Altricial parked macromolecule
7. Altricial carried macromolecule
8. Local resource competitionn, Silk et al., 1981
- matrilocal, rank inherited on matrilines, high ranking F have more F offspring
- high ranking female have more resources than low ranking, so favour expensive sons
9. Why arn't gibbons monogamous
- 25% polyandry, territory overlap, divorce of pairs, EPC
- Calls are not displaying pair bond
- polygyny
- polygynandry
10. Weaning conflict
- male infanticide of feeding infant to gain access to female
- mother wishes to cease lactating, infant want to continue feeding
- New pregnancy so female stops lactating
11. Fast breeding
- MacArthur and E.O Wilson, 1967
- Pianka, 1970
12. Species of gibbon with polygyny
- Hylobates muelleri
- Hylobates pileatus
- Hyobates agilis
- Hylobates albibarbis
13. slow breeding
- stable environment, limited by K not r
- unpredictable environment, not limited by K only by r
14. Altricial carried
- when born the infant cannot move around on its own, very vulnerable, carried by mother or allomother
- When born the infant can move around on its own, advanced
- When born the infant cannot move around on its own, vulnerable, left in nest until mother returns
15. Lactation amenorhea
- the ceasation of lactation for pregnancy
- When female infertile when lactating
- when female fertile when lactating
16. The intesnity of the male gibbon code
- signals strength of pair bond
- Signals fitness of the f and M holding powe
- signals fitness of the M
17. Precocial milk macromolecule
18. Slow breeding
- Piank, 1970
- MacArthur and E.O. WIlson, 1967
19. Why are humans altricial
- cooperative breeding means dont need to be precocial
- extra uterine pregnancy, babies brain is too big, has to be born early even though are K selected
- really r selected not K selected
20. Fast breeding
- unpredictable environment, not limited by K only by r,
- stable environment, limited by K not r
