Abstract

American Journal of Physical AnthropologyVolume 171, Issue S69 p. 1-321 AAPA ABSTRACTSFree Access Program of the 89th Annual Meeting of the American Association of Physical Anthropologists First published: 14 February 2020 https://doi.org/10.1002/ajpa.24023Citations: 5AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume171, IssueS69Program of the 89th Annual Meeting of the American Association of Physical AnthropologistsMarch 2020Pages 1-321 RelatedInformation

Highlights

  • Food security and risk management are prominent 21st century challenges, with ~795 million people estimated to be undernourished worldwide

  • Our results indicate that post-conceptive mating is not restricted to primate species with high levels of infanticide and, in woolly monkeys, might be used by females to confuse paternity among different males who may provide certain social bene ts to a female and her offspring

  • A comparison of these results suggested that cancellous bone functional adaptation appeared to be more localised in the proximal phalanx distal epiphysis depending on manual activity, compared to the proximal epiphysis

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Summary

Introduction

Food security and risk management are prominent 21st century challenges, with ~795 million people estimated to be undernourished worldwide. Climate change is projected to affect the availability and stability of food sources, exacerbating global malnutrition. This is not a novel human challenge. Food security risk management in the face of climate change was crucial to survival of ancestral foragers and farmers throughout human evolution. Little is known about the effects of climate change on foraging-risk management-strategies of smallscale societies. We conducted a naturalistic sleep study to investigate sleep patterns in the BaYaka, a semi-nomadic, non-industrial forager population in Republic of the Congo. Many factors appear to play a role in sleep, including sex and gender, access to electricity, and pattern of subsistence activities. The current study presents a sleep report from a semi-electric, non-industrial, rural, agricultural population of Kaqchikel Maya in the southwestern highlands of Guatemala

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