Editing Chimpanzee (section)

===Subspecies and population status===
Four [[subspecies]] of the chimpanzee have been recognised,<ref name="Groves, Colin 2001 pp. 303-307">{{cite book |last=Groves |first=C. P. |author-link=Colin Groves |year=2001 |title=Primate Taxonomy |pages=303–307 |location=Washington, D.C. |publisher=Smithsonian Institution Press |isbn=978-1-56098-872-4}}</ref><ref>{{cite book |last1=Hof |first1=J. |last2=Sommer |first2=V. |title=Apes Like Us: Portraits of a Kinship |publisher=Panorama |location=Mannheim |date=2010 |isbn=978-3-89823-435-1 |page=114}}</ref> with the possibility of a fifth:<ref name="de Manuel 2016"/><ref name="GVwEC">{{cite journal |last=Groves |first=C. P. |title=Geographic variation within eastern chimpanzees (''Pan troglodytes'' cf. ''schweinfurthii'' Giglioli, 1872) |volume=17 |pages=19–46 |journal=Australasian Primatology |year=2005}}</ref>
* [[Central chimpanzee]] or the [[tschego]] (''Pan troglodytes troglodytes''), found in [[Cameroon]], the [[Central African Republic]], [[Equatorial Guinea]], [[Gabon]], the [[Republic of the Congo]], and the [[Democratic Republic of the Congo]], with about 140,000 individuals existing in the wild.<ref name="IUCN_P.t. troglodytes">{{cite iucn |last1=Maisels |first1=F. |last2=Strindberg |first2=S. |last3=Greer |first3=D. |last4=Jeffery |first4=K. J. |last5=Morgan |first5=D. |last6=Sanz |first6=C. |year=2016 |title=''Pan troglodytes'' ssp. ''troglodytes'' |errata=2016 |page=e.T15936A102332276 |doi=10.2305/IUCN.UK.2016-2.RLTS.T15936A17990042.en}}</ref>
* [[Western chimpanzee]] (''P. troglodytes verus''), found in [[Ivory Coast]], [[Guinea]], [[Liberia]], [[Mali]], [[Sierra Leone]], [[Guinea-Bissau]], [[Senegal]], and [[Ghana]] with about 52,800 individuals still in existence.<ref>{{Cite journal |last1=Heinicke |first1=S. |last2=Mundry |first2=R. |last3=Boesch |first3=C. |last4=Amarasekaran |first4=B. |last5=Barrie |first5=A. |last6=Brncic |first6=T. |last7=Brugière |first7=D. |last8=Campbell |first8=G. |last9=Carvalho |first9=J. |last10=Danquah |first10=E. |last11=Dowd |first11=D. |year=2019 |title=Advancing conservation planning for western chimpanzees using IUCN SSC A.P.E.S.—the case of a taxon-specific database |journal=Environmental Research Letters |volume=14 |issue=6 |pages=064001 |doi=10.1088/1748-9326/ab1379 |bibcode=2019ERL....14f4001H |s2cid=159049588 |issn=1748-9326|doi-access=free |hdl=1893/29775 |hdl-access=free }}</ref><ref name="IUCN_P.t. verus">{{cite iucn |last1=Humle |first1=T. |last2=Boesch |first2=C. |last3=Campbell |first3=G. |last4=Junker |first4=J. |last5=Koops |first5=K. |last6=Kuehl |first6=H. |last7=Sop |first7=T. |year=2016 |title=''Pan troglodytes'' ssp. ''verus'' |errata=2016 |page=e.T15935A102327574 |doi=10.2305/IUCN.UK.2016-2.RLTS.T15935A17989872.en}}</ref>
* [[Nigeria-Cameroon chimpanzee]] (''P. troglodytes ellioti'' (also known as ''P. t. vellerosus'')),<ref name="Groves, Colin 2001 pp. 303-307"/> that live within forested areas across [[Nigeria]] and Cameroon, with 6000–9000 individuals still in existence.<ref>{{cite web |last1=Morgan |first1=Bethan J. |last2=Adeleke |first2=Alade |last3=Bassey |first3=Tony |last4=Bergl |first4=Richard |date=22 February 2011 |title=Regional action plan for the conservation of the Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) |url=https://portals.iucn.org/library/sites/library/files/documents/2011-123-En.pdf |archive-url=https://web.archive.org/web/20210224152328/https://portals.iucn.org/library/sites/library/files/documents/2011-123-En.pdf |access-date=9 February 2021 |archive-date=24 February 2021 |website=IUCN |language=en |url-status=live }}</ref><ref name="IUCN_P.t. ellioti">{{cite iucn |last=Oates |first1=J. F. |last2=Doumbe |first2=O. |last3=Dunn |first3=A. |last4=Gonder |first4=M. K. |last5=Ikemeh |first5=R. |last6=Imong |first6=I. |last7=Morgan |first7=B. J. |last8=Ogunjemite |first8=B. |last9=Sommer |first9=V. |year=2016 |title=''Pan troglodytes'' ssp. ''ellioti'' |page=e.T40014A17990330 |doi=10.2305/IUCN.UK.2016-2.RLTS.T40014A17990330.en}}</ref>
* [[Eastern chimpanzee]] (''P. troglodytes schweinfurthii''), found in the Central African Republic, [[South Sudan]], the Democratic Republic of the Congo, [[Uganda]], [[Rwanda]], [[Burundi]], [[Tanzania]], and [[Zambia]], with approximately 180,000–256,000 individuals still existing in the wild.<ref name="IUCN_P.t. schweinfurthii">{{cite iucn |author=Plumptre, A. |author2=Hart, J.A. |author3=Hicks, T.C. |author4=Nixon, S. |author5=Piel, A.K. |author6=Pintea, L. |year=2016 |errata=2016 |title=''Pan troglodytes'' ssp. ''schweinfurthii'' |page=e.T15937A102329417 |doi=10.2305/IUCN.UK.2016-2.RLTS.T15937A17990187.en}}</ref>
* Southeastern chimpanzee, ''P. troglodytes marungensis'', in Burundi, Rwanda, Tanzania, and Uganda. Colin Groves argues that this is a subspecies, created by enough variation between the northern and southern populations of ''P. t. schweinfurthii'',<ref name="GVwEC"/> but it is not recognised by the IUCN.<ref name="iucn"/>