Skip to main content
    • Aa
    • Aa

Habitat fragmentation and its implications for Endangered chimpanzee Pan troglodytes conservation

  • Alexander Knight (a1), Hazel M. Chapman (a1) and Marie Hale (a1)

Taraba State, Nigeria, is an important conservation site for the Endangered Nigeria–Cameroon chimpanzee Pan troglodytes ellioti. Gashaka Gumti National Park, Nigeria's largest national park and home to potentially the largest contiguous population of the Nigeria–Cameroon chimpanzee, spans a significant portion of the eastern sector of Taraba and the adjoining Adamawa State. South of the Park, Ngel Nyaki Forest Reserve comprises two forest fragments and holds a small population of chimpanzees. We investigated the existence of patterns in population structure and dispersal within this region, using microsatellite loci extracted from non-invasive sources of DNA. Our results indicate that dispersal and thus gene flow between the groups of chimpanzees at the Park and Reserve is limited, at least more so than it is within the Park, and we identified a biased sex ratio at the Reserve, forewarning of potential conservation concerns in relation to demographic and genetic stochasticity. We discuss conservation actions that may be applicable to sustaining the population within Ngel Nyaki Forest Reserve.

Corresponding author
(Corresponding author) E-mail
Hide All
BeckJ. & ChapmanH. (2008) A population estimate of the Endangered chimpanzee Pan troglodytes vellerosus in a Nigerian montane forest: implications for conservation. Oryx, 42, 448451.
BoeschC., KohouG., NénéH. & VigilantL. (2006) Male competition and paternity in wild chimpanzees of the Taï forest. American Journal of Physical Anthropology, 130, 103115.
DuttonP. (2012) Chimpanzee (Pan troglodytes ellioti) ecology in a West African montane forest. PhD thesis. University of Canterbury, Christchurch, New Zealand.
FrankhamR. (2003) Genetics and conservation biology. Comptes Rendus Biologies, 326, 2229.
FrankhamR. (2005) Genetics and extinction. Biological Conservation, 126, 131140.
FrankhamR., BriscoeD.A. & BallouJ.D. (2002) Introduction to Conservation Genetics. Cambridge University Press, Cambridge, UK.
GoossensB., SetchellJ.M., TchidongoE., DilambakaE., VidalC., AncrenazM. & JamartA. (2005) Survival, interactions with conspecifics and reproduction in 37 chimpanzees released into the wild. Biological Conservation, 123, 461475.
GoossensB., SetchellJ.M., VidalC., DilambakaE. & JamartA. (2003) Successful reproduction in wild-released orphan chimpanzees (Pan troglodytes troglodytes). Primates, 44, 6769.
KormosR., BoeschC., BakarrM.I. & ButynskiT. (2003) West African Chimpanzees: Status Survey and Conservation Action Plan. IUCN, Gland, Switzerland, and Cambridge, UK.
MorganB.J., AdelekeA., BasseyT., BerglR., DunnA., FotsoR. et al. (2011) Regional Action Plan for the Conservation of the Nigeria–Cameroon Chimpanzee (Pan troglodytes ellioti) . IUCN/SSC Primate Specialist Group and Zoological Society of San Diego, California, USA.
MorinP.A., ChambersK.E., BoeschC. & VigilantL. (2001) Quantitative polymerase chain reaction analysis of DNA from noninvasive samples for accurate microsatellite genotyping of wild chimpanzees (Pan troglodytes verus). Molecular Ecology, 10, 18351844.
NavidiW., ArnheimN. & WatermanM. (1992) A multiple-tubes approach for accurate genotyping of very small DNA samples by using PCR: statistical considerations. American Journal of Human Genetics, 50, 347359.
OatesJ.F., DunnA., GreengrassE. & MorganB.J. (2008) Pan troglodytes ssp. ellioti. The IUCN Red List of Threatened Species v. 2015.1. Http:// [accessed 9 June 2015].
WallisJ. (1997) A survey of reproductive parameters in the free-ranging chimpanzees of Gombe National Park. Journal of Reproduction and Fertility, 109, 297307.
WilsonM.L. & WranghamR.W. (2003) Intergroup relations in chimpanzees. Annual Review of Anthropology, 32, 363392.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Altmetric attention score

Full text views

Total number of HTML views: 15
Total number of PDF views: 73 *
Loading metrics...

Abstract views

Total abstract views: 344 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 19th October 2017. This data will be updated every 24 hours.