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Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees

Chimpanzees are traditionally described as ripe fruit specialists with large incisors but relatively small postcanine teeth, adhering to a somewhat narrow dietary niche. Field observations and isotopic analyses suggest that environmental conditions greatly affect habitat resource utilisation by chim...

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Autores principales: van Casteren, Adam, Oelze, Vicky M., Angedakin, Samuel, Kalan, Ammie K., Kambi, Mohamed, Boesch, Christophe, Kühl, Hjalmar S., Langergraber, Kevin E., Piel, Alexander K., Stewart, Fiona A., Kupczik, Kornelius
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6123729/
https://www.ncbi.nlm.nih.gov/pubmed/30271989
http://dx.doi.org/10.1038/s42003-018-0115-6
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author van Casteren, Adam
Oelze, Vicky M.
Angedakin, Samuel
Kalan, Ammie K.
Kambi, Mohamed
Boesch, Christophe
Kühl, Hjalmar S.
Langergraber, Kevin E.
Piel, Alexander K.
Stewart, Fiona A.
Kupczik, Kornelius
author_facet van Casteren, Adam
Oelze, Vicky M.
Angedakin, Samuel
Kalan, Ammie K.
Kambi, Mohamed
Boesch, Christophe
Kühl, Hjalmar S.
Langergraber, Kevin E.
Piel, Alexander K.
Stewart, Fiona A.
Kupczik, Kornelius
author_sort van Casteren, Adam
collection PubMed
description Chimpanzees are traditionally described as ripe fruit specialists with large incisors but relatively small postcanine teeth, adhering to a somewhat narrow dietary niche. Field observations and isotopic analyses suggest that environmental conditions greatly affect habitat resource utilisation by chimpanzee populations. Here we combine measures of dietary mechanics with stable isotope signatures from eastern chimpanzees living in tropical forest (Ngogo, Uganda) and savannah woodland (Issa Valley, Tanzania). We show that foods at Issa can present a considerable mechanical challenge, most saliently in the external tissues of savannah woodland plants compared to their tropical forest equivalents. This pattern is concurrent with different isotopic signatures between sites. These findings demonstrate that chimpanzee foods in some habitats are mechanically more demanding than previously thought, elucidating the broader evolutionary constraints acting on chimpanzee dental morphology. Similarly, these data can help clarify the dietary mechanical landscape of extinct hominins often overlooked by broad C3/C4 isotopic categories.
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spelling pubmed-61237292018-09-28 Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees van Casteren, Adam Oelze, Vicky M. Angedakin, Samuel Kalan, Ammie K. Kambi, Mohamed Boesch, Christophe Kühl, Hjalmar S. Langergraber, Kevin E. Piel, Alexander K. Stewart, Fiona A. Kupczik, Kornelius Commun Biol Article Chimpanzees are traditionally described as ripe fruit specialists with large incisors but relatively small postcanine teeth, adhering to a somewhat narrow dietary niche. Field observations and isotopic analyses suggest that environmental conditions greatly affect habitat resource utilisation by chimpanzee populations. Here we combine measures of dietary mechanics with stable isotope signatures from eastern chimpanzees living in tropical forest (Ngogo, Uganda) and savannah woodland (Issa Valley, Tanzania). We show that foods at Issa can present a considerable mechanical challenge, most saliently in the external tissues of savannah woodland plants compared to their tropical forest equivalents. This pattern is concurrent with different isotopic signatures between sites. These findings demonstrate that chimpanzee foods in some habitats are mechanically more demanding than previously thought, elucidating the broader evolutionary constraints acting on chimpanzee dental morphology. Similarly, these data can help clarify the dietary mechanical landscape of extinct hominins often overlooked by broad C3/C4 isotopic categories. Nature Publishing Group UK 2018-08-10 /pmc/articles/PMC6123729/ /pubmed/30271989 http://dx.doi.org/10.1038/s42003-018-0115-6 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
van Casteren, Adam
Oelze, Vicky M.
Angedakin, Samuel
Kalan, Ammie K.
Kambi, Mohamed
Boesch, Christophe
Kühl, Hjalmar S.
Langergraber, Kevin E.
Piel, Alexander K.
Stewart, Fiona A.
Kupczik, Kornelius
Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title_full Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title_fullStr Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title_full_unstemmed Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title_short Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
title_sort food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6123729/
https://www.ncbi.nlm.nih.gov/pubmed/30271989
http://dx.doi.org/10.1038/s42003-018-0115-6
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