Sciurocheirus alleni

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	PRIMATES	GALAGIDAE

Scientific Name:

Sciurocheirus alleni

Species Authority:

(Waterhouse, 1838)

Infra-specific Taxa Assessed:

See Sciurocheirus alleni ssp. alleni

See Sciurocheirus alleni ssp. cameronensis

Common Name/s:

English	–	Allen's Galago, Allen's Bushbaby, Allen's Squirrel Galago
French	–	Galago D'Allen
Spanish	–	Gálago De Allen

Synonym/s:

Galago alleni Waterhouse, 1838

Galago cameronensis (Peters, 1876)

Scuirocheirus alleni (Peters, 1876) ssp. alleni

Scuirocheirus alleni (Peters, 1876) ssp. cameronensis

Taxonomic Notes:

Groves (2005) lists this taxon as Galago alleni. Grubb et al. (2003) split the taxon into two subspecies: S. a. alleni from Bioko and S. a. cameronensis from the mainland. Groves (2001, 2005) treated these as distinct species.

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Oates, J.F. & Bearder, S.

Evaluator/s:

Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)

Justification:
This species has a relatively restricted range, but does relatively well in secondary forest. Habitat change has slowed in some parts of its range, and this species is not actively hunted. As it remains locally common in appropriate forested habitats, and there is no evidence of a significant decline that would warrant listing in a higher category of threat, the species is here listed as Least Concern.

History:

1996	–	Lower Risk/near threatened (Baillie and Groombridge 1996)
1988	–	Not Threatened

Geographic Range [top]

Range Description:	This species is present on Bioko (Equatorial Guinea) and on the mainland of Africa between the Niger River in south-eastern Nigeria and the lower Sanaga River, Cameroon. There are two subspecies: the subspecies S. a. alleni is endemic to Bioko, while S. a. cameronensis is present in Nigeria and Cameroon including Oban, Mamfe, Obrura and Mkpani.
Countries:	Native: Cameroon; Equatorial Guinea (Bioko); Nigeria
Range Map:	(click map to view full version)

Population [top]

Population:	Locally common in appropriate habitat. Highest density in montane forest, and lower densities in primary lowland forest (Ambrose 2003).
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Found in lowland and montane primary and secondary forest; also recorded in farmbush. A nocturnal species that forages on the ground and low and mid-canopy.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	The major threat to this species is habitat loss.

Major Threat(s):

The major threat to this species is habitat loss.

Conservation Actions [top]

Conservation Actions:	This species is listed on Appendix II of CITES. It is recorded from Cross River National Park (Nigeria), as well as from Afe Mountain, Korup and Banyang-Nbo National Parks (Cameroon), and the major protected areas on Bioko.

Conservation Actions:

This species is listed on Appendix II of CITES. It is recorded from Cross River National Park (Nigeria), as well as from Afe Mountain, Korup and Banyang-Nbo National Parks (Cameroon), and the major protected areas on Bioko.

Bibliography [top]

Citations:	Ambrose, L. 2003. Three acoustic forms of Allen’s galagos (Primates; Galagonidae) in the Central African region. Primates 44: 25–39. Groves, C. P. 2001. Primate taxonomy. Smithsonian Institution Press, Washington, DC, USA. Groves, C. P. 2005. Order Primates. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World, pp. 111-184. The Johns Hopkins University Press, Baltimore, Maryland, USA. Grubb, P., Butynski, T. M., Oates, J. F., Bearder, S. K., Disotell, T. R., Groves, C. P. and Struhsaker, T. T. 2003. Assessment of the Diversity of African Primates. International Journal of Primatology 24(6): 1301-1357. Pimley, E. R., Bearder, S. K. and Dixon, A. F. 2005. Home range analysis of Perodicticus potto edwardsi and Sciurocheirus cameronensis. International Journal of Primatology 26: 191-206.

Citations:

Ambrose, L. 2003. Three acoustic forms of Allen’s galagos (Primates; Galagonidae) in the Central African region. Primates 44: 25–39.

Groves, C. P. 2001. Primate taxonomy. Smithsonian Institution Press, Washington, DC, USA.

Groves, C. P. 2005. Order Primates. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World, pp. 111-184. The Johns Hopkins University Press, Baltimore, Maryland, USA.

Grubb, P., Butynski, T. M., Oates, J. F., Bearder, S. K., Disotell, T. R., Groves, C. P. and Struhsaker, T. T. 2003. Assessment of the Diversity of African Primates. International Journal of Primatology 24(6): 1301-1357.

Pimley, E. R., Bearder, S. K. and Dixon, A. F. 2005. Home range analysis of Perodicticus potto edwardsi and Sciurocheirus cameronensis. International Journal of Primatology 26: 191-206.

Citation:	Oates, J.F. & Bearder, S. 2008. Sciurocheirus alleni. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. <www.iucnredlist.org>. Downloaded on 14 March 2010.
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