Bio Primate Selection

Bio Primate Selection - Determinants Of Primate Sociality...

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Determinants Of Primate Sociality Text © Kurland, 2005
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Taxonomy of Primate Social Systems
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Female Core of the Group Resource-Defense/Predator-Protection Female-Bonded = Kin-Based = Matrilineal Female Residence = Philopatry Male Reproductive Tactics follow EXCEPTION: Female Emigration, Male-Bonded
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Group Cost & Benefits Female-Distribution Male-Distribution Social Organization (More Later)
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Primate Reproductive Strategies: In Social Environments
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Reproductive Effort Mating Effort: Cost of successful fertilization Parental Effort: Parental Investment
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Parental Investment (PI): … any investment by the parent in an individual offspring that increases the offspring’s chance of surviving (and hence RS) at the cost of the of the parents ability to invest in other offspring R.L. Trivers, 1972
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Sex Differences in Relative RE Sex differences in Reproductive Strategy Ultimate (Evolutionary) Sex difference: anisogamy = egg vs. sperm = different sized gametes female's large investment in egg cell male’s small investment in sperm cell
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Bio Primate Selection - Determinants Of Primate Sociality...

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