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Meristogenys Whiteheadi
''Meristogenys whiteheadi'' is a species of frog in the family Ranidae. It is endemic to Borneo and found in both Indonesia (Kalimantan) and Malaysia (western Sabah). ''Meristogenys stigmachilus'' and ''Meristogenys stenocephalus'', described as new species in 2011, were formerly included in this species. Owing to the difficulty of distinguishing these species under field conditions, the exact range of this species is uncertain. Its common name is Whitehead's Borneo frog or Whitehead's torrent frog. (includes photographs) Etymology This species is named after John Whitehead, explorer who collected the type series from Mount Kinabalu, Malaysia. Description The dorsum is light brown to greenish dark brown. The lips are dark grey to black. The iris is bicoloured, with a reddish orange horizontal band in the middle surrounded by whitish brown bands above and below. The centre of the tympanum usually has a small light circle. The limbs have alternating light- and dark-brown dors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocker Range
Crocker Range ( ms, Banjaran Crocker) is a mountain range in West Coast Division of Sabah, Malaysia that separates the west and east coast of Sabah. At an average height of , it is the highest mountain range in the state with the range is named after the British administrator in North Borneo, William Maunder Crocker. Geology The range is made up of uplifted and folded sedimentary rocks consisted of weathered soft sandstones and shales. The highest point is Mount Kinabalu at . Most of the park boundary lies above with its lowlands used for cash crops and paddy field. On the east of the range located the Tambunan Valley at which are mainly terraced paddy fields and groves of bamboos border the north-eastern part of the protected park. The park area is important as a water catchment to supply water into various river in the west coast and interior districts of Sabah including Papar River, Kimanis River, Bongawan River, Membakut River, Padas River and Melalap River that flow we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris (anatomy)
In humans and most mammals and birds, the iris (plural: ''irides'' or ''irises'') is a thin, annular structure in the eye, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. Eye color is defined by the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Structure The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, beneath the stroma, pigmented epithelial cells. The stroma is connected to a sphincter muscle ( sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds. The sphincter pupillae is the opposing muscle of the dilator pupillae. The pupil's diameter, and thus the inner border of the iris, changes size when constricting or dilating. The outer border of the iris does not change size. The constr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By George Albert Boulenger
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 1887
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Malaysia
The amphibians of Malaysia are diverse. Species * ''Amolops larutensis'' * '' Angular caecilian'' * '' Ansonia albomaculata'' * '' Ansonia endauensis'' * ''Ansonia hanitschi'' * ''Ansonia latidisca'' * ''Ansonia minuta'' * '' Ansonia torrentis'' * '' Borneophrys edwardinae'' * ''Bufo asper'' * ''Calluella brooksii'' * ''Calluella flava'' * '' Calluella guttulata'' * ''Calluella volzi'' * '' Caudacaecilia asplenia'' * ''Caudacaecilia larutensis'' * '' Caudacaecilia nigroflava'' * '' Chaperina fusca'' * '' Chiromantis nongkhorensis'' * '' Duttaphrynus melanostictus'' * '' Fejervarya cancrivora'' * '' Fejervarya limnocharis'' * '' Fejervarya pulla'' * ''Hoplobatrachus rugulosus'' * ''Huia cavitympanum'' * '' Humerana miopus'' * '' Hylarana banjarana'' * '' Hylarana baramica'' * ''Hylarana erythraea'' * '' Hylarana glandulosa'' * '' Hylarana laterimaculata'' * '' Hylarana luctuosa'' * ''Hylarana macrodactyla'' * ''Hylarana nigrovittata'' * ''Hylarana siberu'' * '' Hylarana signata'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Indonesia
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Borneo
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 elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meristogenys
''Meristogenys'' is a genus of true frogs from Borneo. Its tadpoles are adapted to fast-flowing mountain streams and easily recognizable by their divided upper lip with ribs on the outside.Stuart (2008) Taxonomy and systematics Its closest living relative is apparently the hole-in-the-head frog (''Huia cavitympanum''), type species of the highly polyphyletic " wastebin genus" ''Huia''. ''Meristogenys'', having been proposed far more recently than ''Huia'', might be included in the latter on grounds of phylogeny, as most if not all species placed in the ''Huia'' seem to belong elsewhere. But a group of species traditionally placed in ''Huia'' as well as the genus '' Clinotarsus'' are very close relatives, and therefore a taxonomic revision of this group is probably better deferred until the relationships of all taxa involved have been properly assessed.Cai ''et al.'' (2007), Stuart (2008) ''Meristogenys'' on its own is a monophyletic group. Ecology ''Meristogenys'' are common fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayan Mentarang National Park
Kayan Mentarang National Park ( id, Taman Nasional Kayan Mentarang) is a densely forested national park located in the Indonesian province of North Kalimantan, on the island of Borneo. The national park is named after a great dispersed Mentarang mountain trails plateau of Apau Kayan which covers the entire park from Datadian area in south region to Apau Ping area in mid region until Long Bawan in north region. Geography Kayan Mentarang National Park is located at the border between Indonesia and Malaysia. The park is central to the WWF Heart of Borneo initiative, which aims to protect the transboundary highlands of Borneo, which straddle the three Southeast Asian nations of Indonesia, Malaysia and Brunei Darussalam. Until recently it has been difficult for tourists to enter this huge National Park, with difficulties often encountered at the local rural Malaysian-Indonesian border checkpoint. However, as the Heart of Borneo initiative has progressed agreements have been put ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocker Range National Park
Crocker Range National Park ( ms, Taman Negara Banjaran Crocker) was established in 1984, although the area had previously been under protection as a forest reserve. It covers the north-south Crocker Range, of 1200-1800 metre mountains in Sabah, Malaysia. In the vicinity of park headquarters, there is a resort that provides accommodation and food services. Other visitors facilities such as an exhibition centre, insectarium, fernarium, observation tower and trekking trail can also be found. The park covers 1,399 km², making it the largest park in Sabah. The park consists of both hill and mountain forest, with many species of flora and fauna endemic to Borneo. Maintenance of this forest cover is essential to ensuring a pure water supply for many of the towns and communities in Sabah. The park contains at least five species of primates, such as the orang-utan, gibbons and the furry tarsier with its enormous round eyes, and extremely sociable long-tailed macaques. The Padas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinabalu Park
Kinabalu Park ( ms, Taman Kinabalu), 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. Located on the west coast of Sabah, Malaysian Borneo, it covers an area of 754 square kilometres surrounding Mount Kinabalu, which at 4,095.2 meters, is the highest mountain on the island of Borneo. The park is one of the most popular tourist spots in Sabah and Malaysia in general. In 2010, the park received 611,624 visitors, including 47,613 climbers. The site has been identified by UNESCO as a Centre of Plant Diversity for Southeast Asia, as it contains representatives from at least half of all Borneo’s plant species and is extremely rich in species with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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