Bornean clouded leopard
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The Bornean clouded leopard (''Neofelis diardi borneensis'') is a
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 ...
of the
Sunda clouded leopard The Sunda clouded leopard (''Neofelis diardi'') is a medium-sized wild cat native to Borneo and Sumatra. It is listed as Vulnerable on the IUCN Red List since 2015, as the total effective population probably consists of fewer than 10,000 mature ...
. It is native to the island of
Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas ...
, and differs from the Batu- Sumatran clouded leopard in the shape and frequency of spots, as well as in cranio-
mandibular In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower tooth, teeth in place. The mandible sits beneath the maxilla. It is the only movabl ...
and dental characters. In 2017, the Cat Classification Taskforce of the Cat Specialist Group recognized the
validity Validity or Valid may refer to: Science/mathematics/statistics: * Validity (logic), a property of a logical argument * Scientific: ** Internal validity, the validity of causal inferences within scientific studies, usually based on experiments ** ...
of this subspecies.


Habitat and distribution

In
Kalimantan Kalimantan () is the Indonesian portion of the island of Borneo. It constitutes 73% of the island's area. The non-Indonesian parts of Borneo are Brunei and East Malaysia. In Indonesia, "Kalimantan" refers to the whole island of Borneo. In 2019, ...
, it was recorded in
Sabangau National Park Sabangau National Park (sometimes spelled Sebangau) is a national park in Central Kalimantan, a province of Indonesia in Kalimantan, the Indonesian part of the island of Borneo established in 2004. Between 1980 and 1995 the site was a massive ...
. In northern
Sarawak Sarawak (; ) is a States and federal territories of Malaysia, state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the M ...
, it was recorded in mixed
dipterocarp forest Dipterocarpaceae is a family of 16 genera and about 695 known species of mainly tropical lowland rainforest trees. The family name, from the type genus ''Dipterocarpus'', is derived from Greek (''di'' = two, ''pteron'' = wing and ''karpos'' = fr ...
outside a protected area at elevations of . In
Sabah Sabah () is a States and federal territories of Malaysia, state of Malaysia located in northern Borneo, in the region of East Malaysia. Sabah borders the Malaysian state of Sarawak to the southwest and the North Kalimantan province of Indone ...
, it was recorded in
Danum Valley Conservation Area Danum Valley Conservation Area is a 438 square kilometres tract of relatively undisturbed lowland dipterocarp forest in Sabah, Malaysia. It has an extensive diversity of tropical flora and fauna, including such species as the rare Bornean ...
, Ulu Segama,
Malua Malua is a small village on the Samoan island of Upolu. The name originates from the Samoan word "Maluapapa" which is translated 'shelter under the rock'. It is located on the northwestern coast of the island in the electoral constituency (''faip ...
and Kabili-Sepilok Forest Reserves,
Tabin Wildlife Reserve The Tabin Wildlife Reserve ( ms, Taman Hidupan Liar Tabin) is a nature preserve in Sabah, Malaysia. It was created in 1984 to preserve Sabah's disappearing wild animals. Occupying a large part of the peninsula forming the northern headland of D ...
and the Lower Kinabatangan Wildlife Sanctuary.


Ecology

Results of a camera-trapping survey revealed that it is largely
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 ...
. A radio-collared female had a home range of around in 109 days.


Evolution

The Bornean clouded leopard is estimated to have diverged from the Sumatran clouded leopard in the Late Pleistocene, between 400 and 120 thousand years ago. Land bridges that were created due to low sea levels in the Late Pleistocene were submerged by rising sea levels, resulting in the Bornean clouded leopard becoming separated from the mainland population at this time. It was recognized as its own subspecies in 2007 following an analysis of the genetic substructure of the Bornean and Sumatran clouded leopards, which concluded that there was enough genetic variation to recognize the Sumatran ''Neofelis diardi diardi'' and the Bornean ''Neofelis diardi borneensis'' as two different subspecies.


Preservation & Threats

Bornean cloud leopards are considered vulnerable, similar to other ''Neofelis'' species, due to anthropogenic disturbances such as deforestation, illegal poaching, and hunting pressure.


See also

*
Bay cat The bay cat (''Catopuma badia''), also known as the Bornean bay cat, is a small wild cat endemic to the island of Borneo that appears to be relatively rare compared to sympatric wild cats, based on the paucity of historical, as well as recent re ...
* Bornean tiger *
Sunda Islands The Sunda Islands ( id, Kepulauan Sunda) are a group of islands in the Malay Archipelago.Chisholm, Hugh, ed. (1911). "Sunda Islands" . ''Encyclopædia Britannica''. 26 (11th ed.). Cambridge University Press. They consist of the Greater Sunda ...


References


External links

* Neofelis Endemic fauna of Borneo Mammals of Borneo Carnivorans of Malaysia Mammals of Indonesia Vulnerable fauna of Asia {{felidae-stub