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  Effects of habitat structure and fragmentation on diversity and abundance of primates in tropical deciduous forests in Bolivia

Pyritz, L. W., Büntge, A. B. S., Herzog, S. K., & Kessler, M. (2010). Effects of habitat structure and fragmentation on diversity and abundance of primates in tropical deciduous forests in Bolivia. International Journal of Primatology, 31(5), 796-812. doi:10.1007/s10764-010-9429-z.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D454-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D455-F
Genre: Journal Article

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 Creators:
Pyritz, Lennart W., Author
Büntge, Anna B. S.1, Author              
Herzog, Sebastian K., Author
Kessler, Michael, Author
Affiliations:
1Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445635              

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Free keywords: Bolivia; fragmentation; habitat structure; primates; tropical deciduous forests
 Abstract: Habitat structure and anthropogenic disturbance are known to affect primate diversity and abundance. However, researchers have focused on lowland rain forests, whereas endangered deciduous forests have been neglected. We aimed to investigate the relationships between primate diversity and abundance and habitat parameters in 10 deciduous forest fragments southeast of Santa Cruz, Bolivia. We obtained primate data via line-transect surveys and visual and acoustic observations. In addition, we assessed the vegetation structure (canopy height, understory density), size, isolation time, and surrounding forest area of the fragments. We interpreted our results in the context of the historical distribution data for primates in the area before fragmentation and interviews with local people. We detected 5 of the 8 historically observed primate species: Alouatta caraya, Aotus azarae boliviensis, Callithrix melanura, Callicebus donacophilus, and Cebus libidinosus juruanus. Total species number and detection rates decreased with understory density. Detection rates also negatively correlated with forest areas in the surroundings of a fragment, which may be due to variables not assessed, i.e., fragment shape, distance to nearest town. Observations for Alouatta and Aotus were too few to conduct further statistics. Cebus and Callicebus were present in 90% and 70% of the sites, respectively, and their density did not correlate with any of the habitat variables assessed, signaling high ecological plasticity and adaptability to anthropogenic impact in these species. Detections of Callithrix were higher in areas with low forest strata. Our study provides baseline data for future fragmentation studies in Neotropical dry deciduous forests and sets a base for specific conservation measures.

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Language(s): eng - English
 Dates: 2010-10
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 499378
DOI: 10.1007/s10764-010-9429-z
Other: 2781/S 39119
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Title: International Journal of Primatology
  Alternative Title : Int J Primatol
Source Genre: Journal
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Pages: - Volume / Issue: 31 (5) Sequence Number: - Start / End Page: 796 - 812 Identifier: ISSN: 0164-0291(print)
ISSN: 1573-8604 (online)