Malayan Whistling-thrush
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Malayan Whistling-Thrush
The Malayan whistling thrush or Malaysian whistling-thrush (''Myophonus robinsoni'') is a species of bird in the family Muscicapidae. It is endemic to the Malay Peninsula. Due primarily to habitat loss, its population is thought to be in decline. Taxonomy The Malayan whistling thrush was discovered by H. C. Robinson and described as ''Myiophoneus robinsoni'' by William Robert Ogilvie-Grant in 1905. The specific name is derived from Robinson's surname. Distribution and habitat Its natural habitat is montane forests. It is usually found near streams. It is situated at elevations of about in central peninsular Malaysia. The Malayan whistling thrush historically ranged from the Cameron Highlands to the Genting Highlands. It was present in the Cameron Highlands, where it was trapped in the 1950s and 1960s, but a further survey in 2009–2010 failed to find it there, bringing into question the reliability of intermediate sightings; it is possible that there may have been confusion w ...
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William Robert Ogilvie-Grant
William Robert Ogilvie-Grant (25 March 1863 – 26 July 1924) was a Scottish ornithologist. Early life and education Grant born on 25 March 1863 as second son of Capt. Hon. George Henry Essex Ogilvie-Grant, of Easter Elchies, Craigellachie, Scotland, of the 42nd Highlanders, sixth son of Francis Ogilvy-Grant, 6th Earl of Seafield, and daughter of Sir William Gordon-Cumming, 2nd Baronet. Ogilvie-Grant was educated at Fettes College, Edinburgh, where he studied zoology and anatomy. He also studied at Cargilfield Preparatory School. Career In 1882 he became an Assistant at the Natural History Museum, London, Natural History Museum. He studied ichthyology under Albert C. L. G. Günther, and in 1885 he was put in temporary charge of the Ornithological Section under Richard Bowdler Sharpe's visit to India. He remained in that department, eventually becoming Curator of Birds from 1909 to 1918. He also succeeded Bowdler Sharpe as editor of the ''Bulletin of the British Ornithologists ...
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Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda. ...
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Taxa Named By William Robert Ogilvie-Grant
In biology, a taxon (back-formation from ''Taxonomy (biology), 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 Taxonomic rank, 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 Linnaean taxonomy, system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard de Jussieu, Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of bio ...
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Endemic Fauna Of Malaysia
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 ...
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Birds Of The Malay Peninsula
''The Birds of the Malay Peninsula'' is a major illustrated ornithological reference work conceived and started by Herbert Christopher Robinson. The full title is ''The Birds of the Malay Peninsula: a general account of the birds inhabiting the region from the isthmus of Kra to Singapore with the adjacent islands''. It comprises five substantial ( large octavo) hardbound volumes of text, with 125 plates (123 in colour) by Henrik Grönvold and 11 maps. It was published by H. F. and G. Witherby, London. The binding of the first four volumes was red buckram; the fifth was red cloth with a dust jacket. History Robinson served as Director of Museums in the Federated Malay States in the early 20th century. On his retirement in 1926 he started to write the first of the five volumes of the series, with financial support for publication coming from the government of the Federated Malay States. The aim was to provide a treatment of the birds that could appeal to both professionals and ...
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Myophonus
The whistling thrushes comprise a genus ''Myophonus'' (''Myiophoneus'') of the Old World flycatcher family Muscicapidae. They are all medium-sized mostly insectivorous or omnivorous birds. They are all brightly coloured species found in India and southeast Asia. The male is usually blue, and the females are either similar to the male or brown. The brighter blue patches found on the shoulders and sometimes the head, of whistling thrushes, uniquely for a passerine, reflect strongly in the ultraviolet. Taxonomy As the English name suggests, the genus was at one time placed in the thrush family Turdidae but in 2010 two separate molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ... studies found that members of the genus were more closely related to species in the O ...
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Near Threatened
A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify for the threatened status. The IUCN notes the importance of re-evaluating near-threatened taxon at appropriate intervals. The rationale used for near-threatened taxa usually includes the criteria of vulnerable which are plausible or nearly met, such as reduction in numbers or range. Near-threatened species evaluated from 2001 onwards may also be ones which are dependent on conservation efforts to prevent their becoming threatened, whereas before this conservation-dependent species were given a separate category ("Conservation Dependent"). Additionally, the 402 conservation-dependent taxa may also be considered near-threatened. IUCN Categories and Criteria version 2.3 Before 2001, the IUCN used the version 2.3 Categories and Criteria ...
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IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the International Union for Conservation of Nature, IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to International Unio ...
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Overdevelopment
In international economics, overdevelopment refers to a way of seeing global inequality and pollution that focuses on the negative consequences of excessive consumption. It exists as the mutually constitutive counterpart to the more commonly known concept of 'underdevelopment'. In mainstream development theory, the existence of 'underdeveloped' states, regions or cultures is seen as a problem that needs to be solved. States, regions, cultures and people are considered 'underdeveloped' in that they do not adhere to ideals of rationality, progress, and modernity that are associated with the Enlightenment. In contrast, the framework of overdevelopment shifts the focus to the 'developed' countries of the global North, asking "questions about why excessive consumption amongst the affluent is not also seen foremost as an issue of development". By questioning how and why uneven development is produced in the world, one can evaluate the global North's role and responsibility as “overd ...
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Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ...
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Water Pollution
Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants are introduced into these water bodies. Water pollution can be attributed to one of four sources: sewage discharges, industrial activities, agricultural activities, and urban runoff including stormwater. It can be grouped into surface water pollution (either fresh water pollution or marine pollution) or groundwater pollution. For example, releasing inadequately treated wastewater into natural waters can lead to degradation of these aquatic ecosystems. Water pollution can also lead to water-borne diseases for people using polluted water for drinking, bathing, washing or irrigation. Water pollution reduces the ability of the body of water to provide the ecosystem services (such as drinking water) that ...
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Habitat Destruction
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, introdu ...
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