Ingestive behaviors in bearded capuchins (Sapajus libidinosus)

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Laird, Myra F. ^[1] ; Wright, Barth W. ^[2] ; Rivera, Annie O. ^[3] ; Fogaca, Mariana Dutra ^{[4, 5]} ; van Casteren, Adam ^[6] ; Fragaszy, Dorothy M. ^[7] ; Izar, Patricia ^[8] ; Visalberghi, Elisabetta ^[9] ; Scott, Robert S. ^[10] ; Strait, David S. ^{[6, 11]} ; Ross, Callum F. ^[12] ; Wright, Kristin A. ^[13]

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^[1] Univ Southern Calif, Dept Integrat Anat Sci, Bishop Hall 401, 1333 San Pablo St, Los Angeles, CA 90033 - USA

^[2] Kansas City Univ Med & Biosci, Dept Anat, 1750 Independence Ave, Kansas City, MO 64106 - USA

^[3] Northwestern Univ, Dept Anthropol, 1810 Hinman Ave, Evanston, IL 60208 - USA

^[4] Univ Vet Med, Inst Populat Genet, Dept Biomed Sci, Vet Pl 1, A-1210 Vienna - Austria

^[5] Neotrop Primates Res Grp NeoPReGo, Manoel Oliveira Bueno 469, BR-03643010 Sao Paulo - Brazil

^[6] Washington Univ, Dept Anthropol, Campus Box 1114 One Brookings Dr, St Louis, MO 63130 - USA

^[7] Univ Georgia, Dept Psychol, 125 Baldwin St, Athens, GA 30602 - USA

^[8] Univ Sao Paulo, Dept Expt Psychol, Av Mello Moraes 1721, BR-05508030 Sao Paulo - Brazil

^[9] Natl Res Council CNR, Inst Cognit Sci & Technol, Via U Aldrovandi 16b, I-00197 Rome - Italy

^[10] Rutgers State Univ, Dept Anthropol, 131 George St, New Brunswick, NJ 08901 - USA

^[11] Univ Johannesburg, Palaeo Res Inst, Cnr Kingsway & Univ Rd Auckland Pk, POB 524, ZA-2006 Auckland Pk - South Africa

^[12] Univ Chicago, Dept Organismal Biol & Anat, 1027 E 57th St, Chicago, IL 60637 - USA

^[13] Univ Missouri, Dept Biomed Sci, Sch Med, 2411 Holmes St, Kansas City, MO 64108 - USA

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 10, n. 1 NOV 30 2020.
• Citações Web of Science: 0

Resumo

The biomechanical and adaptive significance of variation in craniodental and mandibular morphology in fossil hominins is not always clear, at least in part because of a poor understanding of how different feeding behaviors impact feeding system design (form-function relationships). While laboratory studies suggest that ingestive behaviors produce variable loading, stress, and strain regimes in the cranium and mandible, understanding the relative importance of these behaviors for feeding system design requires data on their use in wild populations. Here we assess the frequencies and durations of manual, ingestive, and masticatory behaviors from more than 1400 observations of feeding behaviors video-recorded in a wild population of bearded capuchins (Sapajus libidinosus) at Fazenda Boa Vista in Piaui, Brazil. Our results suggest that ingestive behaviors in wild Sapajus libidinosus were used for a range of food material properties and typically performed using the anterior dentition. Coupled with previous laboratory work indicating that ingestive behaviors are associated with higher mandibular strain magnitudes than mastication, these results suggest that ingestive behaviors may play an important role in craniodental and mandibular design in capuchins and may be reflected in robust adaptations in fossil hominins. (AU)

• Processo FAPESP: 14/13237-1 - Plasticidade fenotípica de macacos-prego (gênero Sapajus): investigação sobre o efeito de trajetórias ontogenéticas distintas e de ativação contexto-dependente
• Beneficiário: Patrícia Izar Mauro
• Modalidade de apoio: Auxílio à Pesquisa - Temático