IUCN Red List Assessment
Red List Category
Red List Criteria
Fruth, B., Benishay, J.M., Bila-Isia, I., Coxe, S., Dupain, J., Furuichi, T., Hart, J., Hart, T., Hashimoto, C., Hohmann, G., Hurley, M., Ilambu, O., Mulavwa, M., Ndunda, M., Omasombo, V., Reinartz, G., Scherlis, J., Steel, L. & Thompson, J.
Mittermeier, R.A. & Williamson, E.A. (Primate Red List Authority)
Due to high levels of exploitation and loss of habitat and habitat quality due to expanding human activities, this species is estimated to have experienced a significant population reduction in the past 20 to 30 years (one generation is estimated to be 25 years; Myers Thompson 1997, Furuichi and Hashimoto 2003, T. Furuichi pers. comm. 2007) and it is thought that this reduction will continue for the next 45 to 55 years. The maximum population decline over a three-generation (i.e., 75 year) period from the 1970s to 2045 is thought to exceed 50%, hence qualifying this taxon for Endangered under criterion A4. The causes of the reduction, although largely understood, have certainly not ceased and are not easily reversible. The suspected future survival of bonobos will be determined by the rapidly increasing human population density in the region and the high degree of political instability in the range states.
- 1994Vulnerable(Groombridge 1994)
- 1990Vulnerable(IUCN 1990)
- 1988Vulnerable(IUCN Conservation Monitoring Centre 1988)
- 1986Vulnerable(IUCN Conservation Monitoring Centre 1986)