Cross River bushbaby [1] | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Suborder: | Strepsirrhini |
Family: | Galagidae |
Genus: | Sciurocheirus |
Species: | |
Subspecies: | S. a. cameronensis |
Trinomial name | |
Sciurocheirus alleni cameronensis | |
Map showing range of Cross River bushbaby on the mainland and Allen's bushbaby on Bioko |
The Cross River bushbaby, also known as the Cross River squirrel galago, (Sciurocheirus alleni cameronensis) is a subspecies of prosimian primate in the family Galagidae which is endemic to a restricted area of West Africa. It is one of four species of squirrel galago in the genus Sciurocheirus .
The Cross River bushbaby is a medium-sized bushbaby with little noticeable sexual dimorphism, except that the males may be slightly larger than the females. They have a prominent snout with a pale grey stripe on the nose which broadens out on to the forehead. The fur on the animal's underparts is whitish or grey and this extends onto the inside of the legs and the cheeks. It has black rings surrounding the large, round, chocolate brown eyes which meet between the eyes to form a face mask. It has naked ears, which are black in colour with some times have a pale grey ring at their base. The dorsal fur is generally brown grizzled with grey except that the shoulders, flanks and outer forelimbs are rufous. It has greyish black palms on the hands and soles on the feet. The long tail, which is a fifth longer than the body, is bushy along its length and is coloured dark grey to black, and sometimes has a white tip. Individual variation occurs in the extent of rufous on the anterior dorsal fur, tail colour and the face mask. The weight varies from 220g=355g. [4]
The Cross River bushbaby is endemic to a restricted area in West Africa from the Niger River through South-eastern Nigeria to the Sanaga River in central Cameroon. [4] It is recorded from the Cross River National Park in Nigeria, as well as from Ebo Wildlife Reserve, Korup National Park and Banyang-Mbo Wildlife Sanctuary in Cameroon. [2]
The Cross River bush baby occurs on high rainfall, primary tropical rainforest, both lowland and montane, up to an altitude of 2000m. It occurs in well developed secondary forest with an understorey which is relatively open and will use plantations for foraging in. [4]
The Cross River bushbaby is a nocturnal, arboreal animal but it will occasionally forage on the ground, where it hunts for fallen fruit and invertebrates. They are agile leapers and jump from tree to tree, preferring to use vertical limbs or trunks as supports. It usually forages quite close to the ground, normally within 5m, but has been seen up to 15m from the ground. It often sits in the trees above swarming ants to catch the invertebrates escaping the swarm. During the day it roosts in tangles of lianas and young may be left in these while the mother is foraging. [4] They are territorial with both sexes holding territories with home ranges of just under 3ha. [5]
They are normally solitary but 2-3 individuals may associate and move around together, 2-7 female territories may lie within or overlap with a single male's territory. Some adult females may share sleeping sites and these are more likely to associate with each other while foraging. Young females remain in their mother's territory until they are sexually mature. Mating may last up to an hour and is preceded by the marking of the substrate with urine by both sexes. The females carry the normally single young in their mouths for 45 days. Breeding occurs throughout the year. [4]
Galagos, also known as bush babies, or nagapies, are small nocturnal primates native to continental, sub-Sahara Africa, and make up the family Galagidae. They are considered a sister group of the Lorisidae.
The Senegal bushbaby, also known as the Senegal galago, the lesser galago or the lesser bush baby, is a small, nocturnal primate, a member of the galago family Galagidae.
Lesser bushbabies, or lesser galagos, are strepsirrhine primates of the genus Galago. They are classified, along with the bushbabies and the rest of the galagos, in the family Galagidae. They are probably the most numerous primate in Africa, and can be found in every large forest on the continent, inhabiting forested areas, savannas, riverine bush and open woodlands.
The brown greater galago, also known as the large-eared greater galago or thick-tailed galago, is a nocturnal primate, the largest in the family of galagos. As opposed to smaller galago species it would climb, walk or run rather than leap.
The Cameroon climbing mouse is a species of rodent in the family Nesomyidae which is endemic to the montane grasslands on three mountains in Cameroon.
The crested mona monkey, also known as the crowned guenon, crowned monkey, golden-bellied guenon, or golden-bellied monkey,, is a species of African primate in the family Cercopithecidae found in west central Africa.
The southern needle-clawed bushbaby is a species of strepsirrhine primate in the family Galagidae. Found in Cameroon, Central African Republic, Republic of the Congo, and possibly Democratic Republic of the Congo, its natural habitat is tropical moist forests. While the species is not threatened or endangered, some local populations may be threatened by habitat destruction.
The northern needle-clawed bushbaby is a species of strepsirrhine primate in the family Galagidae. It is found in the coastal region of Cameroon and Nigeria, and on the island of Bioko, Equatorial Guinea in lower-elevation forests that provide its specialized diet of tree gum and resins.
Bioko Allen's bushbaby, also known as the Bioko squirrel galago, is a species of primate in the galago family found in Cameroon, Nigeria, and the island of Bioko, Equatorial Guinea. Its natural habitat is subtropical or tropical dry forests. The bushbaby is currently near-threatened, according to the International Union for Conservation of Nature.
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The dusky bushbaby is a species of primate in the family Galagidae. It is also known as Matschie's galago, in honour of the German zoologist Paul Matschie, curator of mammals at the Museum für Naturkunde in Berlin. Native to tropical Central Africa, it is found in forests in Burundi, Rwanda, Democratic Republic of the Congo and Uganda. The species is small with a long tail, and has an arboreal, nocturnal and omnivorous lifestyle.
The Mohol bushbaby is a species of primate in the family Galagidae which is native to mesic woodlands of the southern Afrotropics. It is physically very similar to the Senegal bushbaby, and was formerly considered to be its southern race. The two species differ markedly in their biology however, and no hybrids have been recorded in captivity.
The dwarf scaly-tailed squirrel is a species of rodent in the family Anomaluridae. It is found in Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon and Uganda. The species is nocturnal and arboreal and lives in subtropical or tropical lowland rainforest. Membranes attached to its limbs and tail enable it to glide between trees. This squirrel is currently not considered to be threatened by habitat destruction; "much of the habitat within parts of the known range of this species is relatively intact, and the species is unlikely to be experiencing any significant declines."
Thomas's rope squirrel or redless tree squirrel is a species of rodent in the family Sciuridae. It is found in Benin, Cameroon, Central African Republic, Democratic Republic of the Congo, Equatorial Guinea, Gabon, and Nigeria. Its natural habitat is subtropical or tropical moist lowland forests. It is a common species and the International Union for Conservation of Nature has rated it as being of "least concern".
The Lady Burton's rope squirrel is a species of rodent in the family Sciuridae. It is found in Cameroon, Central African Republic, Republic of the Congo, Equatorial Guinea, and Gabon. Its natural habitats are tropical and subtropical moist broadleaf forests and subtropical or tropical moist montane forest. It is a common species with a wide range, and the International Union for Conservation of Nature has rated it as being of "least concern".
The Zanj sun squirrel is a species of rodent in the family Sciuridae found in eastern Africa.
The Gabon bushbaby is a species of primate in the family Galagidae found in Cameroon, Gabon, and the Republic of the Congo. Its head and body length is 8.5 in with a 10-in tail, and it weighs about 10 oz. It lives in evergreen tropical rainforests and eats primarily fallen fruit, but also some arthropods.
The Osman Hill's mangabey, also known as the rusty-mantled mangabey, is a species of crested mangabey in the family Cercopithecidae with a restricted distribution in West Africa.
The squirrel galagos are a group of four species of strepsirrhine primates. They are classified in the genus Sciurocheirus of the family Galagidae.