Nigeria-Cameroon chimpanzee

Nigeria-Cameroon chimpanzee
Conservation status
	; Endangered (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Haplorhini
Infraorder:	Simiiformes
Family:	Hominidae
Subfamily:	Homininae
Tribe:	Hominini
Genus:	Pan
Species:	P. troglodytes
Subspecies:	P. t. ellioti
Trinomial name
	Pan troglodytes ellioti; (Matschie,1914)[1]
Synonyms
	Pan troglodytes vellerosus

The Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) is a subspecies of the common chimpanzee which inhabits the rainforest along the border of Nigeria and Cameroon. Male Nigeria-Cameroon chimpanzees can weigh up to 70 kilos with a body length of up to 1.2 metres and a height of 1.3 metres. Females are significantly smaller.[2]

Conservation

The Nigeria-Cameroon chimpanzee is recognised as the most threatened and least distributed of all the common chimpanzee subspecies, and without a dramatic change to human behaviour in the area, there is a likelihood of extinction in the coming decades.[3] A June 2008 report said the Edumanom Forest Reserve was the last known site for chimpanzees in the Niger Delta.[4]

Subpopulations

The Nigeria-Cameroon chimpanzee is found in:[1]

Gashaka-Gumti National Park, Nigeria (900–1,000 individuals)
Ngel Nyaki Forest Reserve, Nigeria[5]
Banyang-Mbo Wildlife Sanctuary, Cameroon (500–900 or 800–1,450 individuals)
Ebo Wildlife Reserve, Cameroon (626–1,480 individuals)
Mbam Djerem National Park, Cameroon (at least 500 individuals)

During a 2006 survey in southwestern Nigeria, the Nigeria-Cameroon chimpanzee was found in Idanre Forest Reserve, Ifon Forest Reserve, Oluwa Forest Reserve, Omo Forest Reserve, Ise Forest Reserve, Ologbo Forest Reserve, and Okomu National Park.[6] Chimpanzees were found in Ondo State, Ekiti State, Edo State, and Ogun State. Later surveys also confirmed chimpanzees to be present in Akure-Ofosu Forest Reserve.[7] This population is on the verge of extinction. The genetic affiliations of this population are also unclear.

References

Oates, J.F.; Doumbe, O.; Dunn, A.; Gonder, M.K.; Ikemeh, R.; Imong, I.; Morgan, B.J.; Ogunjemite, B.; Sommer, V. (2016). "Pan troglodytes ssp. ellioti". IUCN Red List of Threatened Species. 2016: e.T40014A17990330. doi:10.2305/IUCN.UK.2016-2.RLTS.T40014A17990330.en. Retrieved 12 November 2021.
Hof, J.; Sommer, V. (2010). Apes Like Us: Portraits of a Kinship. Mannheim: Edition Panorama. p. 114. ISBN 978-3-89823-435-1.
"Chimpanzee conservation - cameroon". africanconservation.org. Archived from the original on 14 May 2008. Retrieved 11 October 2009.
"Nigeria biodiversity and tropical forestry assessment" (PDF). USAID. June 2008. p. 76. Retrieved 18 September 2010.
"Brief history".
Greengrass, E. J. (2006). "A survey of chimpanzees in South-West Nigeria". NCF-WCS Biodiversity Research Programme.
Ikemeh, R. A. (2013). "Population survey of Nigerian-Cameroon chimpanzees (Pan troglodytes ellioti) in Southwestern Nigerian Priority Sites: Idanre Forest Cluster and Ise Forest Reserve". African Primates. 8: 39–50.

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[IUCN-1] Oates, J.F.; Doumbe, O.; Dunn, A.; Gonder, M.K.; Ikemeh, R.; Imong, I.; Morgan, B.J.; Ogunjemite, B.; Sommer, V. (2016). "Pan troglodytes ssp. ellioti". IUCN Red List of Threatened Species. 2016: e.T40014A17990330. doi:10.2305/IUCN.UK.2016-2.RLTS.T40014A17990330.en. Retrieved 12 November 2021.

[2] Hof, J.; Sommer, V. (2010). Apes Like Us: Portraits of a Kinship. Mannheim: Edition Panorama. p. 114. ISBN 978-3-89823-435-1.

[3] "Chimpanzee conservation - cameroon". africanconservation.org. Archived from the original on 14 May 2008. Retrieved 11 October 2009.

[usaid36-4] "Nigeria biodiversity and tropical forestry assessment" (PDF). USAID. June 2008. p. 76. Retrieved 18 September 2010.

[5] "Brief history".

[6] Greengrass, E. J. (2006). "A survey of chimpanzees in South-West Nigeria". NCF-WCS Biodiversity Research Programme.

[7] Ikemeh, R. A. (2013). "Population survey of Nigerian-Cameroon chimpanzees (Pan troglodytes ellioti) in Southwestern Nigerian Priority Sites: Idanre Forest Cluster and Ise Forest Reserve". African Primates. 8: 39–50.