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X-WR-CALDESC:Events for Center for Behavior, Evolution, and Culture
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DTSTART;TZID=America/Los_Angeles:20180108T000000
DTEND;TZID=America/Los_Angeles:20180108T000000
DTSTAMP:20260509T130757
CREATED:20200922T220756Z
LAST-MODIFIED:20201013T005118Z
UID:4373-1515369600-1515369600@bec.ucla.edu
SUMMARY:Julian Kapoor - Leks\, Lies\, and Audiotape: Dialects and Deception in a Tropical Hummingbird.
DESCRIPTION:Julian Kapoor: Cornell UniversityAmong animals that develop signals through social learning\, dialects – shared signals among a subset of individuals within a larger population – are nearly ubiquitous. Despite the prevalence of dialects across social animal species ranging from hummingbirds to whales to humans\, the functional significance of such variation remains elusive; do dialects reflect an evolutionarily adaptive process\, or are they simply the result of randomly generated variation in signals? The majority of scientific attention has focused on the broad-scale patterns of regional dialects\, where it is thought that the process of cultural drift is a major driver of divergence. Relatively little work\, however\, has sought to explain the existence of fine-scale dialects between sets of individuals within social groups. In my talk\, I will explain the evolutionary mechanisms leading to microgeographic vocal dialects among a group-living species of tropical hummingbird\, the little hermit. Specifically\, I will address tests of the ideas that microgeographic dialects might represent 1) strategic avoidance of superior competitors\, 2) the effects of spatial and temporal queuing for status within the social group\, 3) the result of sexual selection for increased signal salience to receivers\, or 4) the effects of deceptive mimicry. Finally\, I will discuss the implications of my findings for the evolution of vocal learning in social organisms.
URL:https://bec.ucla.edu/event/julian-kapoor-leks-lies-and-audiotape-dialects-and-deception-in-a-tropical-hummingbird/
CATEGORIES:2018,Past Presentation,Presentation
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DTSTART;TZID=America/Los_Angeles:20180122T000000
DTEND;TZID=America/Los_Angeles:20180122T000000
DTSTAMP:20260509T130757
CREATED:20200922T220831Z
LAST-MODIFIED:20201013T005118Z
UID:4374-1516579200-1516579200@bec.ucla.edu
SUMMARY:Katie Hinde - Mother's Milk: Building Blocks and Blueprints for Infant BioBehavioral Development
DESCRIPTION:Katie Hinde: Arizona State UniversityMother’s milk is more than a food full of essential nutrients and more than a medicine packed with protective immunofactors. Mother’s milk contains maternal signals- hormones- that influence infant metabolism\, neurobiology\, and behavior. A growing body of evidence demonstrates that hormones from the mother\, ingested through milk\, bind to receptors within the young. Glucocorticoids in mother’s milk have been associated with offspring temperament\, behavior\, and cognition in rodents\, monkeys\, and humans. Among monkeys\, glucocorticoids in mother’s milk\, predict better cognitive performance and\, independent of available milk energy\, predict a more Nervous\, less Confident temperament in both sons and daughters. Additionally\, maternal-origin glucocorticoids in milk predict offspring growth. Taken collectively\, emerging results suggest that mothers with fewer somatic resources may be “programming” behaviorally cautious offspring that prioritize growth through hormonal signaling. Glucocorticoids ingested through milk may importantly contribute to the assimilation of available milk energy\, development of temperament\, and orchestrate\, in part\, the allocation tradeoffs of maternal milk energy between growth and behavior.
URL:https://bec.ucla.edu/event/katie-hinde-mothers-milk-building-blocks-and-blueprints-for-infant-biobehavioral-development/
CATEGORIES:2018,Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180129T000000
DTEND;TZID=America/Los_Angeles:20180129T000000
DTSTAMP:20260509T130757
CREATED:20200922T220831Z
LAST-MODIFIED:20201013T005118Z
UID:4375-1517184000-1517184000@bec.ucla.edu
SUMMARY:Steven Neuberg  - Discriminating Ecologies: A Life History Approach to Stigma and Health
DESCRIPTION:Steven Neuberg : Arizona State UniversityHow does being discriminated against affect a person’s health\, and through what mechanisms? Most research has focused on two causal pathways\, highlighting how discrimination increases psychological stress and exposure to neighborhood hazards. I advance an alternative\, complementary set of mechanisms through which stigma and discrimination may shape health. Grounded in evolutionary biology’s life history theory\, the framework holds that discrimination alters aspects of the physical and social ecologies in which people live\, such as access to tangible economic resources\, unpredictable extrinsic causes of early mortality\, biased sex ratios\, and community social networks. These discriminating ecologies\, in turn\, pull for specific behaviors and physiological responses (e.g.\, related to risk taking\, sexual activity\, offspring care\, fat storage) that can be viewed as active\, strategic\, and rational given the threats and opportunities afforded by these ecologies\, but which also have downstream implications for a wide range of health outcomes. This framework generates unique hypotheses\, including predictions (a) about the effects of discrimination on a large number of (often underappreciated) negative health outcomes\, ranging from physical injury and sexually transmitted diseases to diseases related to obesity and drug use; and (b) about the ecological factors that mediate between stigmatization and health outcomes\, and the behavioral and physiological strategies these features engage. It also suggests specific approaches to intervention\, while pointing to complex ethical issues. In all\, the life history framework complements more traditional perspectives by providing nuanced insights and hypotheses about the discrimination-health relationship.
URL:https://bec.ucla.edu/event/steven-neuberg-discriminating-ecologies-a-life-history-approach-to-stigma-and-health/
CATEGORIES:2018,Past Presentation,Presentation
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