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X-WR-CALDESC:Events for Center for Behavior, Evolution, and Culture
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DTSTART;TZID=America/Los_Angeles:20140505T000000
DTEND;TZID=America/Los_Angeles:20140505T000000
DTSTAMP:20201013T005133Z
CREATED:20200922T215901Z
LAST-MODIFIED:20201013T005133Z
UID:4274-1399248000-1399248000@bec.ucla.edu
SUMMARY:Sam Diaz-Munoz - Tiny tamarins challenge traditional perspectives on sex roles\, mating systems\, and the evolution of cooperation
DESCRIPTION:Sam Diaz-Munoz: UC Berkeley Department of Plant and Microbial Biology and Integrative Biology Tamarins (Saguinus sp) are small Neotropical monkeys that\, with other callitrichines\, exhibit the most extensive cooperative breeding system of any non-human primate. In this presentation\, I will draw on recent studies of tamarins and other callitrichines to underscore the importance of cooperative infant care to their complex social system. I review how callitrichines were originally classified as monogamous\, but instead have one of the most flexible social organizations among mammals and birds. I highlight how social organization responds to different ecological conditions and how this flexibility represents a challenge to the concept of the mating system. I suggest that the cost of infant care is a main driver of atypical sexual roles\, with intense female reproductive competition and extensive cooperation among males in reproductive contexts. I discuss other species that share elements of social organization with Saguinus tamarins\, including humans. Given that increasing evidence points to a cooperatively breeding past for early humans\, I advocate for an increasing focus on callitrichines as study systems for understanding the evolution of cooperative behavior in humans and all animal societies.
URL:https://bec.ucla.edu/event/sam-diaz-munoz-tiny-tamarins-challenge-traditional-perspectives-on-sex-roles-mating-systems-and-the-evolution-of-cooperation/
CATEGORIES:Past Presentation,Presentation
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DTSTART;TZID=America/Los_Angeles:20140512T000000
DTEND;TZID=America/Los_Angeles:20140512T000000
DTSTAMP:20201013T005133Z
CREATED:20200922T215902Z
LAST-MODIFIED:20201013T005133Z
UID:4275-1399852800-1399852800@bec.ucla.edu
SUMMARY:Kelly Gildersleeve - Meta-analytic and Experimental Investigations of Shifts in Women's Mate Preferences and Attractiveness across the Ovulatory Cycle
DESCRIPTION:Kelly Gildersleeve: UCLA Department of Psychology\, Center for Behavior\, Evolution and Culture For nearly all mammals\, the high-fertility period of the ovulatory cycle is the only time when sex can lead to conception. In nonhuman species\, this period is often marked by dramatic changes in females’ social interactions. I’ll present two meta-analyses and several lab experiments examining similar effects in humans. Results revealed robust support for differences between high and low fertility in women’s sexual attraction to certain characteristics in men\, in some aspects of women’s social behavior (e.g.\, their flirtatiousness)\, and in their attractiveness. These findings suggest that women’s mating motivations and the responses they elicit from others are sensitive to their current fertility within the cycle\, with potentially important implications for their romantic relationships and social behavior more broadly.
URL:https://bec.ucla.edu/event/kelly-gildersleeve-meta-analytic-and-experimental-investigations-of-shifts-in-womens-mate-preferences-and-attractiveness-across-the-ovulatory-cycle/
CATEGORIES:Past Presentation,Presentation
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DTSTART;TZID=America/Los_Angeles:20140519T000000
DTEND;TZID=America/Los_Angeles:20140519T000000
DTSTAMP:20201013T005133Z
CREATED:20200922T215903Z
LAST-MODIFIED:20201013T005133Z
UID:4276-1400457600-1400457600@bec.ucla.edu
SUMMARY:Stacy Rosenbaum - The development of male social partner preference in maturing mountain gorillas
DESCRIPTION:Stacy Rosenbaum: UCLA Department of Anthropology\, Center for Behavior\, Evolution and Culture Social relationships between adult male mountain gorillas and the infants in their groups are quite remarkable\, characterized by extreme tolerance\, grooming\, playing\, and many hours of male “babysitting.” This is true even in the 40% of groups that contain multiple adult males\, where paternity certainty is low. My previous work demonstrated that 1) low-cost parenting is the most likely function of these relationships\, and 2) preferences for individual male social partners persist across considerable time spans\, even after social upheaval. This talk will examine the beginnings of such relationships\, specifically the role maternal facilitation plays. Mothers increase their time near adult males in the first year after infants are born\, and there is some evidence that they narrow their male social circle\, spending more time near one preferred male than they do when infants get older. For a subsample of the population\, male rank is a much better predictor of females’ choice of male social partner than either paternity or mating history. I will discuss the implications these findings have for understanding paternal kin discrimination and the evolution of intra-species variability in social structure.
URL:https://bec.ucla.edu/event/stacy-rosenbaum-the-development-of-male-social-partner-preference-in-maturing-mountain-gorillas/
CATEGORIES:Past Presentation,Presentation
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