30 Days in the life: daily nutrient balancing in a wild chacma baboon

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dc.contributor.authorJohnson, Caley Aen_ZA
dc.contributor.authorRaubenheimer, Daviden_ZA
dc.contributor.authorRothman, Jessica Men_ZA
dc.contributor.authorClarke, Daviden_ZA
dc.contributor.authorSwedell, Larissaen_ZA
dc.date.accessioned2015-12-28T06:50:21Z
dc.date.available2015-12-28T06:50:21Z
dc.date.issued2013en_ZA
dc.description.abstractFor most animals, the ability to regulate intake of specific nutrients is vital to fitness. Recent studies have demonstrated nutrient regulation in nonhuman primates over periods of one observation day, though studies of humans indicate that such regulation extends to longer time frames. Little is known about longer-term regulation in nonhuman primates, however, due to the challenges of multiple-day focal follows. Here we present the first detailed study of nutrient intake across multiple days in a wild nonhuman primate. We conducted 30 consecutive all day follows on one female chacma baboon ( Papio hamadryas ursinus ) in the Cape Peninsula of South Africa. We documented dietary composition, compared the nutritional contribution of natural and human-derived foods to the diet, and quantified nutrient intake using the geometric framework of nutrition. Our focus on a single subject over consecutive days allowed us to examine daily dietary regulation within an individual over time. While the amounts varied daily, our subject maintained a strikingly consistent balance of protein to non-protein (fat and carbohydrate) energy across the month. Human-derived foods, while contributing a minority of the diet, were higher in fat and lower in fiber than naturally-derived foods. Our results demonstrate nutrient regulation on a daily basis in our subject, and demonstrate that she was able to maintain a diet with a constant proportional protein content despite wide variation in the composition of component foods. From a methodological perspective, the results of this study suggest that nutrient intake is best estimated over at least an entire day, with longer-term regulatory patterns (e.g., during development and reproduction) possibly requiring even longer sampling. From a management and conservation perspective, it is notable that nearly half the subject's daily energy intake derived from exotic foods, including those currently being eradicated from the study area for replacement by indigenous vegetation.en_ZA
dc.identifier.apacitationJohnson, C. A., Raubenheimer, D., Rothman, J. M., Clarke, D., & Swedell, L. (2013). 30 Days in the life: daily nutrient balancing in a wild chacma baboon. <i>PLoS One</i>, http://hdl.handle.net/11427/16063en_ZA
dc.identifier.chicagocitationJohnson, Caley A, David Raubenheimer, Jessica M Rothman, David Clarke, and Larissa Swedell "30 Days in the life: daily nutrient balancing in a wild chacma baboon." <i>PLoS One</i> (2013) http://hdl.handle.net/11427/16063en_ZA
dc.identifier.citationJohnson, C. A., Raubenheimer, D., Rothman, J. M., Clarke, D., & Swedell, L. (30). Days in the life: daily nutrient balancing in a wild chacma baboon. PloS one, 8(7), e70383. doi:10.1371/journal.pone.0070383en_ZA
dc.identifier.ris TY - Journal Article AU - Johnson, Caley A AU - Raubenheimer, David AU - Rothman, Jessica M AU - Clarke, David AU - Swedell, Larissa AB - For most animals, the ability to regulate intake of specific nutrients is vital to fitness. Recent studies have demonstrated nutrient regulation in nonhuman primates over periods of one observation day, though studies of humans indicate that such regulation extends to longer time frames. Little is known about longer-term regulation in nonhuman primates, however, due to the challenges of multiple-day focal follows. Here we present the first detailed study of nutrient intake across multiple days in a wild nonhuman primate. We conducted 30 consecutive all day follows on one female chacma baboon ( Papio hamadryas ursinus ) in the Cape Peninsula of South Africa. We documented dietary composition, compared the nutritional contribution of natural and human-derived foods to the diet, and quantified nutrient intake using the geometric framework of nutrition. Our focus on a single subject over consecutive days allowed us to examine daily dietary regulation within an individual over time. While the amounts varied daily, our subject maintained a strikingly consistent balance of protein to non-protein (fat and carbohydrate) energy across the month. Human-derived foods, while contributing a minority of the diet, were higher in fat and lower in fiber than naturally-derived foods. Our results demonstrate nutrient regulation on a daily basis in our subject, and demonstrate that she was able to maintain a diet with a constant proportional protein content despite wide variation in the composition of component foods. From a methodological perspective, the results of this study suggest that nutrient intake is best estimated over at least an entire day, with longer-term regulatory patterns (e.g., during development and reproduction) possibly requiring even longer sampling. From a management and conservation perspective, it is notable that nearly half the subject's daily energy intake derived from exotic foods, including those currently being eradicated from the study area for replacement by indigenous vegetation. DA - 2013 DB - OpenUCT DO - 10.1371/journal.pone.0070383 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - 30 Days in the life: daily nutrient balancing in a wild chacma baboon TI - 30 Days in the life: daily nutrient balancing in a wild chacma baboon UR - http://hdl.handle.net/11427/16063 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/16063
dc.identifier.urihttp://dx.doi.org/10.1371/journal.pone.0070383
dc.identifier.vancouvercitationJohnson CA, Raubenheimer D, Rothman JM, Clarke D, Swedell L. 30 Days in the life: daily nutrient balancing in a wild chacma baboon. PLoS One. 2013; http://hdl.handle.net/11427/16063.en_ZA
dc.language.isoengen_ZA
dc.publisherPublic Library of Scienceen_ZA
dc.publisher.departmentDepartment of Archaeologyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_ZA
dc.rights.holder© 2013 Johnson et alen_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/4.0en_ZA
dc.sourcePLoS Oneen_ZA
dc.source.urihttp://journals.plos.org/plosoneen_ZA
dc.subject.otherBaboonsen_ZA
dc.subject.otherNutrientsen_ZA
dc.subject.otherDieten_ZA
dc.subject.otherFooden_ZA
dc.subject.otherCarbohydratesen_ZA
dc.subject.otherFood consumptionen_ZA
dc.subject.otherNew World monkeysen_ZA
dc.subject.otherPrimatesen_ZA
dc.title30 Days in the life: daily nutrient balancing in a wild chacma baboonen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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