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DTSTART;TZID=America/Los_Angeles:20160104T000000
DTEND;TZID=America/Los_Angeles:20160104T000000
DTSTAMP:20260511T144922
CREATED:20200922T220219Z
LAST-MODIFIED:20201013T005126Z
UID:4331-1451865600-1451865600@bec.ucla.edu
SUMMARY:Brenna Henn - Answering Major Questions in Modern Human Origins with Genome Data
DESCRIPTION:Brenna Henn: SUNY Stony BrookOver twenty-five years ago\, geneticists sequenced mitochondrial DNA from a diverse sample of human populations and hypothesized that all humans have a common origin in Africa 200\,000 years ago.The broad outlines of this hypothesis remain remarkably unaltered\, but many details of our African origin continue to be elusive. After decades of advances in human genetics\, we are no longer data limited (either in terms of samples or genomic loci) but there is little consensus on most key issues. I will outline the models underlying the origin of modern humans. For example\, was there a single ancestral population or multiple ancestral populations? Additionally\, is there a discordance between anatomically modern humans and behaviorally modern humans? I will explore patterns of genetic diversity across Africa\, the complex history of southern African KhoeSan groups and adaptations to African environments. I discuss whether genetic data supports archaeological data and suggest directions for future research.
URL:https://bec.ucla.edu/event/brenna-henn-answering-major-questions-in-modern-human-origins-with-genome-data/
CATEGORIES:Past Presentation,Presentation
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20160111T000000
DTEND;TZID=America/Los_Angeles:20160111T000000
DTSTAMP:20260511T144922
CREATED:20200922T220210Z
LAST-MODIFIED:20201013T005126Z
UID:4322-1452470400-1452470400@bec.ucla.edu
SUMMARY:Bruce Ellis - Childhood Experience\, Development of Reproductive Strategies\, and Health: An Integrative\, Life History Framework
DESCRIPTION:Bruce Ellis: University of ArizonaLife history theory is used to explain how individuals adapt their physiology\, behavior\, and reproduction to different social and ecological conditions.  Using a life history framework\, I will present a program of research examining linkages between childhood experiences (including familial and extra-familial conditions)\, pubertal development\, sexual activity\, and health\, highlighting  the important distinction between harsh versus unpredictable environmental contexts\, the special role of fathers in regulating daughters’ sexual development\, differential susceptibility to environmental influences\, and effects of life-history trade-offs on health.   An evolutionary\, life history perspective emphasizes that\, when organisms encounter stressful environments\, it does not so much disturb their development as direct or regulate it toward strategies that are adaptive under stressful conditions\, even if those strategies are currently harmful in terms of the long-term welfare of the individual or society as a whole.
URL:https://bec.ucla.edu/event/bruce-ellis-childhood-experience-development-of-reproductive-strategies-and-health-an-integrative-life-history-framework/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20160125T000000
DTEND;TZID=America/Los_Angeles:20160125T000000
DTSTAMP:20260511T144922
CREATED:20200922T220220Z
LAST-MODIFIED:20201013T005126Z
UID:4332-1453680000-1453680000@bec.ucla.edu
SUMMARY:Marcus Hamilton - Biological Scaling and the Evolution of Human Ecology
DESCRIPTION:Marcus Hamilton: Santa Fe InstituteWe can observe\, examine and study the world around us meaningfully at many scales. Biologists may study genes\, populations\, species\, ecosystems\, or the biosphere. Social scientists may study the behavior of individuals\, the dynamics of cities\, or aspects of the archaeological past. But of course\, at a coarse-grained level we are all examining the same system\, just at different scales\, and so the question then becomes; how do we integrate across all these scales to understand something about the fundamental mechanisms driving the complexity of living systems\, including humans? In this talk I will introduce the scaling approach to understand the structure and function of biological systems\, and how we can leverage insights gained in the biological realm to understand how human ecology has evolved. I will argue that economies of scale are fundamental to life\, including human societies\, and the scaling approach provides a powerful mathematical and statistical framework for understanding why.
URL:https://bec.ucla.edu/event/marcus-hamilton-biological-scaling-and-the-evolution-of-human-ecology/
CATEGORIES:Past Presentation,Presentation
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