Trusmadi Range | |
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![]() Trusmadi Range with peaks of Trusmadi (furthest from view, enveloped by cloud), Kaingaran and Sinsing. | |
Highest point | |
Peak | Mount Trusmadi |
Elevation | 2,580 m (8,460 ft) |
Coordinates | 5°35′N116°30′E / 5.583°N 116.500°E |
Naming | |
Native name | Banjaran Trusmadi (Malay) |
Geography | |
Country | ![]() |
State | ![]() |
Region | Interior Division, parts of West Coast Division |
District | Tambunan, Keningau and Ranau |
Trusmadi Range or Trus Madi (Malay : Banjaran Trusmadi) is a mountain range in Interior Division and parts of West Coast Division of Sabah, Malaysia that also separates the west and east coast of Sabah aside from the main Crocker Mountains. With a length of about 80 kilometres, the range includes the state's second highest peak, Mount Trusmadi, after which it is named. [1] [2]
Its geology comprises tertiary formation of mudstone, shale and argillite with subordinate beds of quartzite, sandstone, siltstone and limestone breccias. [1] The range physical characteristics strongly dissected into steep sided valleys and narrow-crested ridges where it is separated from the Crockers by the Tambunan-Keningau-Tenom plain. [3] It serves as a vital water catchment area for numerous water bodies such as the Kinabatangan, Labuk, Liwagu and Pegalan rivers. The largest catchment area is the headwaters of the Pegalan River with a number of tributaries including the Ambual, Kaingaran, Keinop, Linsudon, Mailo, Monsok, Sembuan, Sungei and Sook flow to the western direction into the South China Sea while the smallest catchment is irrigated by several tributaries of Liwagu River that flow into eastern direction towards the Sulu Sea. [2]
With its higher elevation, the range hosts around 172 ferns species in 75 genera and 23 families. [2] Through a 2012 survey on the Trusmadi Forest Reserve where the range is located, a total of 36 mammal species, 144 birds' species including two species of reptiles and one species of butterfly were recorded. [3] [4] It is the second most important area for Bornean endemics and montane species after Kinabalu for globally threatened birds like the mountain serpent-eagle Spilornis kinabaluensis and the near threatened Bornean frogmouth Batrachostomus mixtus . [3]
The geography of Malaysia includes both the physical and the human geography of Malaysia, a Southeast Asian country made up of two major landmasses separated by water—Peninsular Malaysia to the West and East Malaysia to the East—and numerous smaller islands that surround those landmasses. Peninsular Malaysia is on the southernmost part of the Malay Peninsula, south of Thailand, north of Singapore and east of the Indonesian island of Sumatra; East Malaysia comprises most of the northern part of Borneo island, and shares land borders with Brunei to the north and Indonesian Borneo to the south.
Mount Kinabalu is the highest mountain in Borneo and Malaysia. With an elevation of 4,095 metres (13,435 ft), it is third-highest peak of an island on Earth, and 20th most prominent mountain in the world. The mountain is located in Ranau district, West Coast Division of Sabah, Malaysia. It is protected as Kinabalu Park, a World Heritage Site.
Kinabalu Park, established as one of the first national parks of Malaysia in 1964, is Malaysia's first World Heritage Site designated by UNESCO in December 2000 for its "outstanding universal values" and the role as one of the most important biological sites in the world with more than 4,500 species of flora and fauna, including 326 bird and around 100 mammal species, and over 110 land snail species.
The Bornean ferret badger, also known as Everett's ferret badger or the Kinabalu ferret badger, is a small, nocturnal and omnivorous mammal that is endemic to the island of Borneo. It is a member of the family Mustelidae and is one of six species of the genus Melogale. It is listed as endangered on the IUCN Red List of Threatened Species due to its small distribution range, which includes Kinabalu National Park and Crocker Range National Park.
Mount Tambuyukon or Tamboyukon is a mountain located at the West Coast and Kudat divisions of Sabah, Malaysia. It is considered the third-highest mountain in the country with height at 2,579 metres (8,461 ft), lying north of the highest Mount Kinabalu.
Nepenthes lowii, or Low's pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is named after Hugh Low, who discovered it on Mount Kinabalu. This species is perhaps the most unusual in the genus, being characterised by its strongly constricted upper pitchers, which bear a greatly reduced peristome and a reflexed lid with numerous bristles on its lower surface.
Nepenthes fusca, or the dusky pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is found throughout a wide altitudinal range and is almost always epiphytic in nature, primarily growing in mossy forest.
Crocker Mountains is a mountain range extending from the West Coast until Interior divisions of Sabah, Malaysia that separates the west and east coast of Sabah. At an average height of 1,800 metres (5,906 ft), it is the highest mountain range in the state. It is named after the British administrator in North Borneo, William Maunder Crocker.
Nepenthes macrophylla, the large-leaved pitcher-plant, is a tropical pitcher plant known only from a very restrictive elevation on Mount Trusmadi in Sabah, Malaysian Borneo.
The Liwagu River is a river in West Coast Division of Sabah, Malaysia, flowing eastwards off the southern slope of Mount Kinabalu into the Labuk River in Sandakan Division. Most parts of the river are covered by primary and secondary forests.
Mount Trusmadi or Trus Madi is a mountain located at the Interior Division of Sabah, Malaysia. It is considered as the second highest mountain in both Sabah and Malaysia at 2,642 metres (8,668 ft), after Mount Kinabalu with Trusmadi offering a tougher climbing challenge than the latter.
Nepenthes × trusmadiensis, or the Trus Madi Pitcher-Plant, is a natural hybrid of two famous Bornean pitcher plant species: N. lowii and N. macrophylla. It is restricted to Mount Trus Madi, where both of its parent species are sympatric.
The mountain blackeye, sometimes referred to as the olive blackeye or simply black-eye, is a species of passerine bird in the family Zosteropidae. It is endemic to the highest mountains on the island of Borneo. It is known from both Malaysian states on the island, and four of the five Indonesian provinces, but has never been recorded in Brunei. Typically found at elevations above 1,800 m (5,900 ft), the mountain blackeye sometimes moves to lower altitudes during periods of drought. There are four subspecies, which show clinal variations in size and coloring. Birds in the north are largest, darkest, and proportionately longer-tailed, while those further south are smaller, paler, and proportionately shorter-tailed. Adults are dark olive-green with a sharply-pointed, bright yellow-orange bill and a small dark mask connecting black lores with a black eye-ring. The subspecies show varying amounts of yellow in their plumage, particularly on the face and underparts. Young birds resemble their parents, but have less brightly colored bills.
The black-sided flowerpecker, also known as the Bornean flowerpecker, is a species of bird in the family Dicaeidae. It is endemic to the island of Borneo, where it is found in the mountains, primarily above 1,000 m (3,300 ft) in elevation. The species is sexually dimorphic. The male has glossy blue-black upperparts, with a scarlet throat and breast, a dark grey upper belly, olive flanks, a white lower belly, and a buffy vent and undertail coverts. The female is olive-green above and greyish below, with buffy flanks and a whitish throat. It inhabits a range of forest habitats, including primary and secondary montane forest, kerangas forest, and scrub, and is also occasionally found in gardens. It feeds primarily on small fruits—particularly mistletoe berries—as well as seeds, nectar, and various invertebrates. It builds a nest of moss, camouflaged on the outside with lichens and lined with the pith of tree ferns. The International Union for Conservation of Nature rates it as a species of least concern. Though its numbers have not been quantified, the black-sided flowerpecker is said to be common throughout much of its range, and any declines are not thought to be precipitous. However, destruction of forest for palm plantations may impact it.
The Bornean smooth-tailed treeshrew is a species of treeshrew in the family Tupaiidae. It is endemic to Borneo. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
The Borneo montane rain forests is an ecoregion on the island of Borneo in Southeast Asia. It includes montane tropical and subtropical moist broadleaf forests, also known as a cloud forests. The ecoregion is partly in East Malaysia and Indonesia (Kalimantan).
The island of Borneo is located on the Sunda Shelf, which is an extensive region in Southeast Asia of immense importance in terms of biodiversity, biogeography and phylogeography of fauna and flora that had attracted Alfred Russel Wallace and other biologists from all over the world.
The Padas River is a river in Interior Division, southwestern Sabah of Malaysia. It has a total length of 120 km (75 mi) from its headwaters in the mountains of northwest Sabah to its outlet at the South China Sea, southwest of Beaufort town. Its source is originated from the Long Pasia in Sipitang and go through in the mountains in the interior Beaufort, Keningau and Tenom Districts, which part of the Crocker Range system. Padas river is from Long Pasia.
Tenompok Forest Reserve is a protected forest reserve in Ranau District of West Coast Division, Sabah, Malaysia. It was designated as a Class 1 Forest Reserve by the Sabah Forestry Department in 1984. Its area is 1,984 hectares (19.84 km2). A former reserve, the Kampung Bundu Tuhan Native Residence Reserve, occupied what is now the eastern portion of Tenompok. The reserve is mountainous, reaching 1,660 metres (5,450 ft) above sea level. Vegetation consists of lower montane forest and montane kerangas forest. Both share a similar species composition, although trees in montane keranga forests are smaller. The reserve's Tomis River is a tributary of the Tuaran River. The area of the reserve has never received significant logging, aside from small amount near what are now its borders. This small logging is thought to be carried out by nearby villages for local use. There is also some agricultural encroachment. The reserve lies between Kinabalu Park and Crocker Range National Park. One farmer has a house within the reserve. There are several settlements around the reserve, along with agricultural land.
Rhododendron fallacinum is a species of rhododendron native to Borneo.
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