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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Human proximity and habitat fragmentation are key drivers of the rangewide bonobo distribution
Biodiversity and Conservation, Volume 22, No. 13-14, Year 2013
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Description
Habitat loss and hunting threaten bonobos (Pan paniscus), Endangered (IUCN) great apes endemic to lowland rainforests of the Democratic Republic of Congo. Conservation planning requires a current, data-driven, rangewide map of probable bonobo distribution and an understanding of key attributes of areas used by bonobos. We present a rangewide suitability model for bonobos based on a maximum entropy algorithm in which data associated with locations of bonobo nests helped predict suitable conditions across the species' entire range. We systematically evaluated available biotic and abiotic factors, including a bonobo-specific forest fragmentation layer (forest edge density), and produced a final model revealing the importance of simple threat-based factors in a data poor environment. We confronted the issue of survey bias in presence-only models and devised a novel evaluation approach applicable to other taxa by comparing models built with data from geographically distinct sub-regions that had higher survey effort. The model's classification accuracy was high (AUC = 0.82). Distance from agriculture and forest edge density best predicted bonobo occurrence with bonobo nests more likely to occur farther from agriculture and in areas of lower edge density. These results suggest that bonobos either avoid areas of higher human activity, fragmented forests, or both, and that humans reduce the effective habitat of bonobos. The model results contribute to an increased understanding of threats to bonobo populations, as well as help identify priority areas for future surveys and determine core bonobo protection areas. © 2013 Springer Science+Business Media Dordrecht.
Authors & Co-Authors
Hickey, Jena R.
United States, Ithaca
Cornell University
Nackoney, Janet
United States, College Park
University of Maryland, College Park
Nibbelink, Nathan P.
United States, Athens
University of Georgia
Blake, Stephen
Germany, Pocking
Max-planck-institut Für Ornithologie
Bonyenge, Aime
Congo, Brazzaville
Wildlife Conservation Society
Coxe, Sally Jewel
United States, Washington
Bonobo Conservation Initiative
Dupain, Jef
Kenya, Nairobi
African Wildlife Foundation
Emetshu, Maurice
Congo, Brazzaville
Wildlife Conservation Society
Furuichi, Takeshi
Japan, Kyoto
Kyoto University
Grossmann, Falk
United States, New York
Wildlife Conservation Society
Guislain, Patrick
United States, Milwaukee
Bonobo and Congo Biodiversity Initiative
Hart, John A.
Congo, Kinshasa
Lukuru Foundation
Hashimoto, Chie
Japan, Kyoto
Kyoto University
Ikembelo, B. Beka
Congo, Brazzaville
Wildlife Conservation Society
Ilambu, Omari
Congo, Lubumbashi
Drc
Inogwabini, Bila Isia
Congo, Lubumbashi
Drc
Liengola, I. B.
Congo, Brazzaville
Wildlife Conservation Society
Lokasola, Albert Lotana
Unknown Affiliation
Lushimba, Alain
Kenya, Nairobi
African Wildlife Foundation
Maisels, Fiona G.
United States, New York
Wildlife Conservation Society
United Kingdom, Stirling
University of Stirling
Masselink, Joel
United States, New York
Wildlife Conservation Society
Mbenzo, Valentin
Congo
Congo Basin Ecosystems Conservation Support Program (pacebco)
Mulavwa, Norbert Mbangia
Congo
Ministry of Education and Scientific Research
Naky, Pascal
Congo, Brazzaville
Wildlife Conservation Society
Ndunda, Nicolas Mwanza
Congo
Ministry of Education and Scientific Research
Nkumu, Pele
Congo, Brazzaville
Wildlife Conservation Society
Omasombo, Valentin
Congo
Congolese Institute for the Conservation of Nature (iccn)
Reinartz, Gay Edwards
United States, Milwaukee
Bonobo and Congo Biodiversity Initiative
Rose, Robert A.
United States, New York
Wildlife Conservation Society
Sakamaki, Tetsuya
Japan, Kyoto
Kyoto University
Strindberg, Samantha
United States, New York
Wildlife Conservation Society
Takemoto, Hiroyuki
Japan, Kyoto
Kyoto University
Vosper, Ashley
Congo, Brazzaville
Wildlife Conservation Society
Kühl, Hjalmar S.
Germany, Leipzig
Max-planck-institut Für Evolutionäre Anthropologie
Statistics
Citations: 34
Authors: 34
Affiliations: 17
Identifiers
Doi:
10.1007/s10531-013-0572-7
ISSN:
09603115
Study Design
Cross Sectional Study
Study Approach
Quantitative
Study Locations
Congo