Demidoff’s dwarf galago (Galagoides demidovii)

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Demidoff's dwarf galago on branch
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Demidoff’s dwarf galago fact file

Demidoff’s dwarf galago description

KingdomAnimalia
PhylumChordata
ClassMammalia
OrderPrimates
FamilyGalagidae
GenusGalagoides (1)

Demidoff’s dwarf galago is not only the smallest species within the bushbaby family, but also one of the world’s smallest primates (4) (5). In common with other bushbabies (or galagos), the narrow head of Demidoff’s dwarf galago is dominated by large immobile eyes, capable of penetrating the darkest forest nights, and enormous ears that it can turn independently in the direction of predators or prey (2) (4). Long slender digits with opposable thumbs are adaptations to its arboreal lifestyle, and a lengthy tail acts as a balancing aid (6). The woolly fur is grey to reddish-brown overall, but the underparts and flanks of the limbs are considerably paler than the rest of the body (2) (4).

Also known as
Demidoff’s galago, dwarf bushbaby, dwarf galago.
Synonyms
Galago demidoff.
French
Galago De Demidoff.
Spanish
Gálago Enano.
Size
Head and body length: 73 - 155 mm (2)
Weight
44 - 97 g (2)
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Demidoff’s dwarf galago biology

The unusually large eyes and ears of Demidoff’s dwarf galago are essential adaptations to its nocturnal lifestyle (8). Hunting during the night, it uses its acute senses to follow inconspicuous prey through the dense foliage (2) (8). Small insects, such as beetles and moths, form the bulk of its diet, but it will also forage for fruits and gums (2). The day is spent sleeping in fully enclosed leaf nests or in tangles of vegetation, anywhere from 5 to 40 metres off the ground (2) (9). Usually these nests are occupied by a single galago but occasionally two or three females will share a nest with their young. Males, on the other hand, are extremely aggressive towards one another, and seek to control exclusive home ranges that overlap those of as many females as possible. Generally it is the heavier males that control the largest territories (2).

The female usually has just one pregnancy each year, lasting around 133 days. The tiny infant weighs just 5 to 10 grams at birth, but after a month is normally able to follow its mother on foraging bouts. The young is weaned at around 6 weeks and reaches sexual maturity at around 8 to 11 months (2).

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Demidoff’s dwarf galago range

Demidoff’s dwarf galago occurs from Senegal across to western Tanzania, and on Bioko Island in the Gulf of Guinea (1) (2). Insufficient evidence is currently available to assess whether several distinct geographic clusters of Demidoff’s dwarf galago actually comprise separate subspecies, or possibly species (7).

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Demidoff’s dwarf galago habitat

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Demidoff’s dwarf galago status

Classified as Least Concern (LC) on the IUCN Red List (1) and listed on Appendix II of CITES (3).

IUCN Red List species status – Least Concern

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Demidoff’s dwarf galago threats

Demidoff’s dwarf galago is threatened in some parts of its range by habitat loss associated with deforestation and conversion of land for agriculture. Nonetheless, these actions are not thought to be having a significant impact on the overall stability of its population. Consequently, this species is classified as Least Concern on the IUCN Red List (1).

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Demidoff’s dwarf galago conservation

There are no known conservation measures in place for Demidoff’s dwarf galago, but it is present in several protected areas (1). In addition, this species is listed on Appendix II of CITES and consequently can only be traded internationally under a permit (3). In order to inform conservation efforts, further taxonomic research is necessary to assess whether some geographic populations should be regarded as separate subspecies, or even species (7).

View information on this species at the UNEP World Conservation Monitoring Centre.
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Find out more

To find out more about primate conservation visit:

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Authentication

Authenticated (20/02/2009) by Professor Leanne T. Nash, Professor of Anthropology, Arizona State University.
http://shesc.asu.edu/nash

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Glossary

Arboreal
An animal which lives or spends a large amount of time in trees.
Nocturnal
Active at night.
Primary
In reference to forest that has remained undisturbed for a long time and has reached a mature condition.
Secondary forest
Forest that has re-grown after a major disturbance, such as fire or timber harvest, but has not yet reached the mature state of primary forest.
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References

  1. IUCN Red List (June, 2008)
    http://www.iucnredlist.org/
  2. Nowak, R.M. (1999) Walker's Mammals of the World. Johns Hopkins University Press, Baltimore, Maryland.
  3. CITES (June, 2008)
    http://www.cites.org
  4. Macdonald, D.W. (2006) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
  5. Ankel-Simons, F.A. (2000) Primate Anatomy: An Introduction. Academic Press, San Diego.
  6. Alden, P.C., Estes, R.D., Schlitter, D. and McBride, B. (1996) Collins Guide to African Wildlife. HarperCollins Publishers, London.
  7. 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: 1301 - 57.
  8. Burton, M. and Burton, R. (2002) International Wildlife Encyclopedia. Marshall Cavendish, New York.
  9. Primate Info Net (December, 2008)
    http://pin.primate.wisc.edu/factsheets/entry/lesser_bushbaby/taxon
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Image credit

Demidoff's dwarf galago on branch  
Demidoff's dwarf galago on branch

© Bruce Davidson / naturepl.com

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