Dataset Information

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

ABSTRACT: 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.

SUBMITTER: van Casteren A

PROVIDER: S-EPMC6123729 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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

van Casteren Adam A Oelze Vicky M VM Angedakin Samuel S Kalan Ammie K AK Kambi Mohamed M Boesch Christophe C Kühl Hjalmar S HS Langergraber Kevin E KE Piel Alexander K AK Stewart Fiona A FA Kupczik Kornelius K

Communications biology 20180810

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, ...[more]

PMID: 30271989

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Dataset Information

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

Publications

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

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