Statistics

Statistics

Great Apes in the wild (family hominidae)

Pongo Pymaeus1Bornean Orangutan54,000 Est.
Pongo p. pygmaeus 3,000 - 4,500 Est.
Pongo p. wurmbii 35,000 Est.
Pongo p. morio 15,000 Est.
   
Pongo Abelli1Sumatran Orangutan6,600 Est.
   
Gorilla GorillaWestern Gorilla94,700 Est.
Gorilla g. gorilla Western Lowland gorilla 94,500 Est.
Gorilla g. diehliCross River gorilla200 Est.
   
Gorilla BeringeiEastern Gorilla17,500 Est.
Gorilla b. beringei2Mountain gorilla700 Est.
Gorilla b. graueriEastern Lowland gorilla 16,900 Est.*
   
Pan Troglodytes3Chimpanzee203,000 Est.
Pan t. schweinfurthiiEastern chimpanzee76,400-119,600 Est.
Pan t. verusWestern chimpanzee21,300-55,600 Est.
Pan t. troglodytesCentral chimpanzee70,000-116,500 Est.
Pan t. vellerosusNigeria chimpanzee5,000-8,000 Est.
   
Pan PaniscusBonobo20,000 - 50,000 Est.
   
Homo SapiensHuman6 Billion + Est.

*ALERT: Conservation International press release (March 30, 2004) stated number has declined 70% since 1994 and is currently at 5,000 individuals

Taxonomy credited to Groves, C. P. (2001). Primate Taxonomy. Smithsonian Institution Press: Washington, D.C.

Unless otherwise cited below, great ape population numbers are from Butynski, T.M. (2001) Africa's Great Apes. In: Great Apes and Humans: the Ethics of Coexistence. Beck, B., Stoinski, T.S., Hutchins, M., Maple, T.L., Norton, B., Rowan, A., Stevens, E.F. and Arluke, A. (eds.) Smithsonian Institution Press, Washington, D.C. pp.3-56.

1 Wich, S.A.; Meijaard, E.; Marshall, A.J.; Husson, S.; Ancrenaz, M.; Lacy, R.C.; van Shaik, C.P.; Sugardjito, J.; Simorangkir, T.; Traylor-Holzer, K.; Doughty, M.; Supriatna, J.; Dennis, R.; Gumal, M.; Knott, C.D. and Singleton, I. (2008) Distribution and Conservation Status of the Orang-utan (Pongo spp.) on Borneo and Sumatra: how many remain? Fauna & Floral International, Oryx, 42(3), 1-11.

2 Dian Fossey Gorilla Fund International (2004)

3 This portion of the table was adapted from Butynski, T.M. (2001) and updated in the IUCN West African Chimpanzee Status Survey and Conservation Action Plan (2003).

Support Rwanda's

Forest of Hope

Forest of Hope

Support a unique and ambitious conservation effort in Africa.

$
Chimpanzee Cam
Tree