bb2011 ANP220 14 Male-female relationships

bb2011 ANP220 14 Male-female relationships - Goals for...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Are male and female relationships based primarily on reproductive sex? ANP 220 meeting #14 Goals for today articles by Lovejoy and Smuts reproduction and pair bonds: the Lovejoy’s model what are friends for? continuous receptivity: are humans special? continuous receptivity, female reproductive cycle, indicators of receptivity, differences & similarities of humans and nonhuman primates bonding, reproductive benefits, and paternity certainty definition friendship, different interests of m & f, benefits of friends, female benefits mating with multiple males, costs of The origin of man – A behavioral model for early hominid evolution C. Owen Lovejoy Summary: Lovejoy tries to explain human behavioral suggests that separation in m/f foraging led to monogamy & male provisioning (enabled through bipedality) female core area use and male provisioning led to higher survivorship and higher birth rates monogamy was “strengthened” through reproductive particulars of humans, e.g., continuous receptivity nuclear family adaptation central to the success of early hominins very recently repeated similar arguments concerning “Ardi” Ardipithecus ramidus (“Ardi”; ca. 4.4 mya)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 EARLY HOMININS patchy food, long search, seasonality, need to increase reprod. success m/f separate foraging, reduces competition f: small range, more parenting, higher survival no effect on mating sex ratio parity monogamy bonding male provisioning increased survival increased birth rate CONT. RECEPTIVITY EPIGAMETIC ANATOMY nuclear family home bases longer learning period sibling bonds fewer risky behaviors adoption BIPEDALITY Lovejoy’s model What are friends for? Barbara Smuts Summary: Smuts aims to show that long-term bonds (friendships) are not only about sex olive baboons suggests that females form friendships with one or more males friendships can be long-term and benefit a female, her offspring, and the male males may or may not be the father of the infants they help friendships may be costly, too contends that bonding may occur w/o sexual division of labor, w/o sexual exclusivity and w/o high paternity certainty Two contrasting models nuclear family pair w/ offspring exclusive pair bond continued receptivity high paternity certainty division of labor male provisioning family increased reproductive success m-f friendships multiple ( 1 friend) multiple mating partners extended receptivity low paternity certainty no division of labor no provisioning (but access) increased reproductive success & social benefits
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/07/2011 for the course ANP 220 taught by Professor Koenig during the Spring '10 term at SUNY Stony Brook.

Page1 / 9

bb2011 ANP220 14 Male-female relationships - Goals for...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online