The Central African oyan (''Poiana richardsonii''), also called Central African linsang, is a

linsang The linsangs are four species of tree-dwelling carnivorous mammals. The name of these species originated in the Javanese language as ''linsang'' or ''wlinsang'', and previously, was translated incorrectly in English dictionaries as " otter". T ...

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

native to

Central Africa Central Africa is a subregion of the African continent comprising various countries according to different definitions. Angola, Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, the Republic of the Congo, ...

Characteristics

The Central African oyan's body is slender and long, with an elongated head and a pointed muzzle. Its fur is yellowish to reddish brown with darker spots on the back and flanks. Its throat and belly are lighter in colour and without spots. Its tail has 9 to 14 dark rings. Its body is long, and the tail about the same length. Its legs are short, and the soles of its feet hairy. Females are slightly smaller than males.

Distribution and habitat

The Central African oyan is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...

Equatorial Guinea Equatorial Guinea ( es, Guinea Ecuatorial; french: Guinée équatoriale; pt, Guiné Equatorial), officially the Republic of Equatorial Guinea ( es, link=no, República de Guinea Ecuatorial, french: link=no, République de Guinée équatoria ...

Gabon Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered by Equatorial Guinea to the northwest, Cameroon to the north ...

, the

Central African Republic The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of th ...

, the

Republic of the Congo The Republic of the Congo (french: République du Congo, ln, Republíki ya Kongó), also known as Congo-Brazzaville, the Congo Republic or simply either Congo or the Congo, is a country located in the western coast of Central Africa to the w ...

, and the

Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...

east to the

Albertine Rift The Albertine Rift is the western branch of the East African Rift, covering parts of Uganda, the Democratic Republic of the Congo (DRC), Rwanda, Burundi and Tanzania. It extends from the northern end of Lake Albert to the southern end of Lake Tan ...

. It lives in lowland and montane

tropical rainforest Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equatori ...

s. In Gabon, a

camera-trap A camera trap is a camera that is automatically triggered by a change in some activity in its vicinity, like presence of an animal or a human being. It is typically equipped with a motion sensor – usually a passive infrared (PIR) sensor ...

recorded an individual on the forest floor. In Gabon's

Moukalaba-Doudou National Park Moukalaba-Doudou National Park is a national park in Gabon Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered b ...

, it was also recorded only in forested areas.

Behaviour and ecology

The Central African oyan lives foremost in the

canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), aboveground portion of grapes Religion and ceremonies * Baldachin or canopy of state, typically placed over an a ...

, but has rarely been observed on the ground. It is

nocturnal Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed sens ...

and hunts small rodents and birds, but also feeds on insects. Its breeding habits are unknown.

Taxonomy

The Central African oyan or "Richardson's genette" was first described in 1842 as ''Genetta richardsonii'', in honour of John Richardson, by T. R. H. Thomson, based on a

zoological specimen A zoological specimen is an animal or part of an animal preserved for scientific use. Various uses are: to verify the identity of a (species), to allow study, increase public knowledge of zoology. Zoological specimens are extremely diverse. Exampl ...

collected in Fernando Po. In an 1864 paper,

published Publishing is the activity of making information, literature, music, software and other content available to the public for sale or for free. Traditionally, the term refers to the creation and distribution of printed works, such as books, newsp ...

the following year,

John Edward Gray John Edward Gray, FRS (12 February 1800 – 7 March 1875) was a British zoologist. He was the elder brother of zoologist George Robert Gray and son of the pharmacologist and botanist Samuel Frederick Gray (1766–1828). The same is used for ...

transferred the species from '' Genetta'' to his newly erected genus '' Poiana''. In 1907,

Oldfield Thomas Michael Rogers Oldfield Thomas (21 February 1858 – 16 June 1929) was a British zoologist. Career Thomas worked at the Natural History Museum on mammals, describing about 2,000 new species and subspecies for the first time. He was appoin ...

and

Robert Charles Wroughton Robert Charles Wroughton (15 August 1849, in Naseerabad – 15 May 1921) was an officer in the Indian Forest Service from 10 December 1871 to 1904. He was a member of the Bombay Natural History Society (BNHS) and was interested in Hymenoptera ...

described a new

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

, ''Poiana Richardsoni ochracea'', in the original orthography, from the area of the

Aruwimi River The Aruwimi River is a tributary of the Congo River, located to the north and east of the Congo.Stanley, H.M., 1899, Through the Dark Continent, London: G. Newnes, Vol. One , Vol. Two The Aruwimi begins as the Ituri River, which rises near Lake ...

near

Yambuya Yambuya is a community in the Democratic Republic of the Congo, on the Aruwimi River, roughly due north of Yangambi. The river is navigable as far as Yambuya, but is blocked by cataracts further upstream. Yambuya was made a base for the Emin Pash ...

, in what is now the

. In a paper read at the 26 November 1907 meeting of the

Zoological Society of London The Zoological Society of London (ZSL) is a charity devoted to the worldwide conservation of animals and their habitats. It was founded in 1826. Since 1828, it has maintained the London Zoo, and since 1931 Whipsnade Park. History On 29 ...

and

the following year,

Reginald Innes Pocock Reginald Innes Pocock F.R.S. (4 March 1863 – 9 August 1947) was a British zoologist. Pocock was born in Clifton, Bristol, the fourth son of Rev. Nicholas Pocock and Edith Prichard. He began showing interest in natural history at St. Edward ...

described a further subspecies based on a specimen collected in Liberia, ''Poiana richardsoni leightoni'', but in 1974 elevated "

Leighton's linsang The West African oyan (''Poiana leightoni''), also known as the West African linsang, is a linsang species native to the Upper Guinean forests in West Africa. It is one of the least known small carnivores in Africa. Characteristics The West Af ...

" or the West African oyan from subspecies to independent species rank. Two subspecies are recognized: * ''Poiana richardsonii richardsonii'' (

Thomson Thomson may refer to: Names * Thomson (surname), a list of people with this name and a description of its origin * Thomson baronets, four baronetcies created for persons with the surname Thomson Businesses and organizations * SGS-Thomson Mic ...

, 1842) * ''Poiana richardsonii ochracea''

Thomas Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (disambiguation) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Ap ...

and

Wroughton Wroughton is a large village and civil parish in northeast Wiltshire, England. It is part of the Borough of Swindon and lies along the A4361 between Swindon and Avebury; the road into Swindon crosses the M4 motorway between junctions 15 an ...

, 1907

Threats

The Central African oyan is possibly threatened by

deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated d ...

and

bushmeat Bushmeat is meat from wildlife species that are hunted for human consumption, most often referring to the meat of game in Africa. Bushmeat represents a primary source of animal protein and a cash-earning commodity for inhabitants of humid tropi ...

hunting.

References

{{DEFAULTSORT:oyan, Central African

Central African oyan The Central African oyan (''Poiana richardsonii''), also called Central African linsang, is a linsang species native to Central Africa. Characteristics The Central African oyan's body is slender and long, with an elongated head and a pointed m ...

Fauna of Central Africa