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  Nutritional differences between two Orangutan habitats: implications for population density

Vogel, E. R., Harrison, M. E., Zulfa, A., Bransford, T. D., Alavi, S. E., Husson, S., et al. (2015). Nutritional differences between two Orangutan habitats: implications for population density. PLoS One, 10(10): e0138612. doi:10.1371/journal.pone.0138612.

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Genre: Journal Article

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 Creators:
Vogel, Erin R, Author
Harrison, Mark E, Author
Zulfa, Astri, Author
Bransford, Timothy D, Author
Alavi, Shauhin E.1, Author              
Husson, Simon, Author
Morrogh-Bernard, Helen, Author
Firtsman, Twentinolosa, Author
Utami-Atmoko, Sri Suci, Author
van Noordwijk, Maria A, Author
Farida, Wartika Rosa, Author
Affiliations:
1Rutgers University, ou_persistent22              

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 Abstract: Bottom-up regulatory factors have been proposed to exert a strong influence on mammalian population density. Studies relating habitat quality to population density have typically made comparisons among distant species or communities without considering variation in food quality among localities. We compared dietary nutritional quality of two Bornean orangutan populations with differing population densities in peatland habitats, Tuanan and Sabangau, separated by 63 km. We hypothesized that because Tuanan is alluvial, the plant species included in the orangutan diet would be of higher nutritional quality compared to Sabangau, resulting in higher daily caloric intake in Tuanan. We also predicted that forest productivity would be greater in Tuanan compared to Sabangau. In support of these hypotheses, the overall quality of the diet and the quality of matched dietary items were higher in Tuanan, resulting in higher daily caloric intake compared to Sabangau. These differences in dietary nutritional quality may provide insights into why orangutan population density is almost two times greater in Tuanan compared to Sabangau, in agreement with a potentially important influence of diet quality on primate population density.

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 Dates: 2015-10-14
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1371/journal.pone.0138612
 Degree: -

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Title: PLoS One
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 10 (10) Sequence Number: e0138612 Start / End Page: - Identifier: ISSN: 1932-6203
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000277850