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Tarsius Bancanus
Horsfeld's tarsier (''Cephalopachus bancanus'') is the only species of tarsier in the genus ''Cephalopachus''. Named by American naturalist Thomas Horsfield, it is also referred to as western tarsier. The species occurs on Borneo, Sumatra and nearby islands and is, like other members of the group, entirely nocturnal. Taxonomy Although Horsfeld's tarsier was usually placed in the genus ''Tarsius'' with all other living tarsiers, it is quite distinct from the Philippine tarsier and the various tarsiers of Sulawesi and nearby islands; therefore, scientists have placed it in a separate genus, ''Cephalopachus''. The taxonomy of this species is in doubt, with some subspecies considered unsure. In fact, over 20 years few studies have been done on ''C. bancanus'' and a taxonomic revision based upon intensive and systematic field surveys is overdue. The IUCN believes that these subspecies should be treated as distinct and named as separate taxa until more definitive evidence is available ...
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Borneo
Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda Islands, located north of Java Island, Java, west of Sulawesi, and east of Sumatra. The island is crossed by the equator, which divides it roughly in half. The list of divided islands, island is politically divided among three states. The sovereign state of Brunei in the north makes up 1% of the territory. Approximately 73% of Borneo is Indonesian territory, and in the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. The Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo. Etymology When the sixteenth-century Portuguese explorer Jorge de Menezes made contact with the indigenous people of Borneo, they referred to their island as ''Pulu K'lemantang'', which ...
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Lowland
Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland. Definitions Upland and lowland are portions of a plain that are conditionally categorized by their elevation above the sea level. Lowlands are usually no higher than , while uplands are somewhere around to . On unusual occasions, certain lowlands such as the Caspian Depression lie below sea level. Uplands areas tend to spike into valleys and mountains, forming mountain ranges while lowland areas tend to be uniformly flat, although both can vary such as the Mongolian Plateau. Upland habitats are cold, clear and rocky whose rivers are fast-flowing in mountainous areas; lowland habitats are warm with slow-flowing rivers found in relatively flat lowland areas, with water that is frequently colored by sediment and organic matter. These classifications overlap with the geological definitions ...
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Pelage
A fur is a soft, thick growth of hair that covers the skin of almost all mammals. It consists of a combination of oily guard hair on top and thick underfur beneath. The guard hair keeps moisture from reaching the skin; the underfur acts as an insulating blanket that keeps the animal warm. The fur of mammals has many uses: protection, sensory purposes, waterproofing, and camouflaging, with the primary usage being thermoregulation. The types of hair include * ''definitive'', which may be shed after reaching a certain length; * '' vibrissae'', which are sensory hairs and are most commonly whiskers; * ''pelage'', which consists of guard hairs, under-fur, and awn hair; * '' spines'', which are a type of stiff guard hair used for defense in, for example, porcupines; * ''bristles'', which are long hairs usually used in visual signals, such as the mane of a lion; * ''velli'', often called "down fur", which insulates newborn mammals; and * ''wool'', which is long, soft, and ofte ...
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Autapomorphy
In phylogenetics, an autapomorphy is a distinctive feature, known as a Synapomorphy, derived trait, that is unique to a given taxon. That is, it is found only in one taxon, but not found in any others or Outgroup (cladistics), outgroup taxa, not even those most closely related to the focal taxon (which may be a species, family (biology), family or in general any clade). It can therefore be considered as an apomorphy in relation to a single taxon. The word ''autapomorphy'', introduced in 1950 by German entomology, entomologist Willi Hennig, is derived from the Greek language, Greek words αὐτός, ''autos'' "self"; ἀπό, ''apo'' "away from"; and μορφή, ''morphḗ'' = "shape". Discussion Because autapomorphies are only present in a single taxon, they do not convey information about relationship. Therefore, autapomorphies are not useful to infer phylogenetic relationships. However, autapomorphy, like synapomorphy and plesiomorphy is a relative concept depending on the ta ...
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Plantation
Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tobacco, coffee, tea, cocoa, sugar cane, opium, sisal, oil seeds, oil palms, fruits, rubber trees and forest trees. Protectionist policies and natural comparative advantage have sometimes contributed to determining where plantations are located. In modern use, the term usually refers only to large-scale estates. Before about 1860, it was the usual term for a farm of any size in the southern parts of British North America, with, as Noah Webster noted, "farm" becoming the usual term from about Maryland northward. The enslavement of people was the norm in Maryland and states southward. The plantations there were forced-labor farms. The term "plantation" was used in most British colonies but very rarely in the United Kingdom itself i ...
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Secondary Forest
A secondary forest (or second-growth forest) is a forest or woodland area which has regenerated through largely natural processes after human-caused Disturbance (ecology), disturbances, such as Logging, timber harvest or agriculture clearing, or equivalently disruptive natural phenomena. It is distinguished from an old-growth forest (primary or primeval forest), which has not recently undergone such disruption, and complex early Seral community, seral forest, as well as third-growth forests that result from harvest in second growth forests. Secondary forest regrowing after timber harvest differs from forest Ecological succession, regrowing after natural Disturbance (ecology), disturbances such as Wildfire, fire, insect infestation, or windthrow because the dead trees remain to provide nutrients, structure, and water retention after natural disturbances. Secondary forests are notably different from primary forests in their composition and biodiversity; however, they may still be hel ...
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Primary Forest
An old-growth forest or primary forest is a forest that has developed over a long period of time without Disturbance (ecology), disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. One-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and Canopy (biology), canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debr ...
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Central Kalimantan
Central Kalimantan () is a provinces of Indonesia, province of Indonesia. It is one of five provinces in Kalimantan, the Indonesian part of Borneo. It is the largest province in Indonesia by area since 2022, bordered by West Kalimantan to the west, South Kalimantan and East Kalimantan to the east, Java Sea to the south and is separated narrowly from North Kalimantan and Malaysia by East Kalimantan's Mahakam Ulu Regency. Its provincial capital is Palangka Raya and in 2010 its population was over 2.2 million,Biro Pusat Statistik, Jakarta, 2011. while the 2020 Census showed a total of almost 2.67 million;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2024 was 2,809,700 (comprising 1,450,830 males and 1,358,870 females), and was projected to rise to 2,845,000 at mid 2025.Badan Pusat Statistik, Jakarta, 28 February 2025, ''Provinsi Kalimantan Tengah Dalam Angka 2025'' (Katalog-BPS 1102001.62) The population growth rate was almost 3.0% per annum between 1990 and 20 ...
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East Kalimantan
East Kalimantan (Indonesian language, Indonesian: ) is a Provinces of Indonesia, province of Indonesia. Its territory comprises the eastern portion of Borneo/Kalimantan. It had a population of about 3.03 million at the 2010 census (within the current boundary),Biro Pusat Statistik, Jakarta, 2011. 3.42 million at the 2015 census, and 3.766 million at the 2020 census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 4,030,488.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Provinsi Kalimantan Timur Dalam Angka 2024'' (Katalog-BPS 1102001.64) Its capital is the city of Samarinda, the most populous city in the entire Borneo. East Kalimantan has a total area of and is the third Provinces of Indonesia, least densely populated province in Kalimantan (after North Kalimantan and Central Kalimantan). The majority of the region shares a maritime border to the east with West Sulawesi and Central Sulawesi; its Cape Mangkalihat separates the Makassar Strait fr ...
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Kutai
Kutai is a historical region in what is now the Indonesian province of East Kalimantan on the island of Borneo. The region shares its name with the native ethnic group of the region (known as 'the Kutai people'), with a total population around 300,000, who have their own language known as the Kutainese language which accompanies their own rich history. Today, the name is preserved in the names of three regencies in East Kalimantan province which are the Kutai Kartanegara Regency, the West Kutai Regency and East Kutai Regency with the major river flowing in the heart of the region known as the Mahakam River. The Kutai Martadipura Kingdom (399–1635) was the earliest Hindu kingdom in the East Indies. It was later succeeded by the Muslim sultanate of Kutai Kartanegara (1300–1844). Kutai Martapura Kingdom The Kutai Martapura Kingdom (399–1635; locally known as ) is a 4th-century Hindu kingdom located in the Kutai area, East Kalimantan. Its capital is believed to b ...
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Kelabit Highlands
The Kelabit Highlands are a mountain range located in the northernmost part of Sarawak, Malaysia in the Miri Division. It hosts the Bario village. The highest mountains in this range are Mount Murud at , Bukit Batu Buli at , and Bukit Batu Lawi at . The current population of the Kelabit people is about 6,800. Maligan Highlands, another highland nearby located within the Limbang Division, hosts the Ba'kelalan village. Geography The rocks of the Kelabit Highlands comprise mudstones, sandstones, and limestones ranging in age from the Oligocene to Miocene periods. In terms of plate tectonics, the region was a basin formed by warping at a subduction zone where the continental crust was forced upwards. The estimated rate of uplift is 20 mm per century for the last two million years. Bario showed a lowering in temperatures during the Last Glacial Maximum (LGM). Villages Bario The area hosts 13 villages. Seven of these are in the Bario area while the others are around the outskirts ...
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West Kalimantan
West Kalimantan () is a province of Indonesia. It is one of five Indonesian provinces comprising Kalimantan, the Indonesian part of the island of Borneo. Its capital and largest city is Pontianak. It is bordered by East Kalimantan and Central Kalimantan to the east, the Malaysian state of Sarawak to the north, and the Bangka Belitung Islands to the west and the Java Sea to the south. The province has an area of 147,037 km2, and had a population of 4,395,983 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 5,414,390 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 5,623,328 (comprising 2,887,209 males and 2,736,119 females), and was projected to rise to 5,695,500 at mid 2024.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Provinsi Kalimantan Barat Dalam Angka 2024'' (Katalog-BPS 1102001.61) Ethnic groups include the Dayak, Malay, Chinese, Javanese, Bugis, and Madurese. The borders of West Kalimantan roughl ...
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