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Quercus Lowii
''Quercus lowii'' is a species of oak (''Quercus'') native to the mountains of northern Borneo. Range and habitat ''Quercus lowii'' is native to Malaysian Borneo. It is mostly found in the vicinity of Mount Kinabalu in Sabah state, along with a single location in Sarawak. ''Quercus lowii'' grows in montane rain forest between 1,500 and 2,500 metres elevation. It is typically found on soils derived from ultrabasic rocks. Conservation ''Quercus lowii'' is affected by habitat loss from deforestation and replacement of its native forests with tree plantations. Its conservation status is assessed as near threatened. Taxonomy ''Quercus lowii'' is classed in subgenus ''Cerris'', section ''Cyclobalanopsis''. Its specific name, ''lowii'', was given in honour of Hugh Low Sir Hugh Low, (10 May 182418 April 1905) was a British colonial administrator and naturalist. After a long residence in various colonial roles in Labuan, he was appointed as British administrator in the Malay Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The 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 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 IUCN the formally stated goals of the Red List are to provide sc ... [...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, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Sarawak
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Sabah
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora 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] |
Hugh Low
Sir Hugh Low, (10 May 182418 April 1905) was a British colonial administrator and naturalist. After a long residence in various colonial roles in Labuan, he was appointed as British administrator in the Malay Peninsula where he made the first trials of ''Hevea'' rubber in the region. He is often considered the first successful British administrator in the region, whose methods became models for subsequent British colonial operation in the entire South East Asia Region. He made the first documented ascent of Mount Kinabalu in 1851. Both Kinabalu's highest peak as well as the deep gully on the northern side of the mountain are named after him.Encyclopædia Britannica. Early life Low was born in Upper Clapton, England, the son of a Scottish horticulturist, also named Hugh. At an early age, he acquired botanical expertise working in the family nursery. At 20, his father sent him on a collecting expedition to Southeast Asia. He based himself in Singapore but soon joined James Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Sect
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably ''Lithocarpus'' (stone oaks), as well as in those of unrelated species such as '' Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near Threatened Species
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation
Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, a half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. The Food and Agriculture Organization of the United Nations defines deforestation as the conversion of forest to other land uses (regardless of whether it is human-induced). "Deforestation" and "forest area net change" are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrabasic
Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content). The Earth's mantle is composed of ultramafic rocks. Ultrabasic is a more inclusive term that includes igneous rocks with low silica content that may not be extremely enriched in Fe and Mg, such as carbonatites and ultrapotassic igneous rocks. Intrusive ultramafic rocks Intrusive ultramafic rocks are often found in large, layered ultramafic intrusions where differentiated rock types often occur in layers. Such cumulate rock types do not represent the chemistry of the magma from which they crystallized. The ultramafic intrusives include the dunites, peridotites and pyroxenites. Other rare varieties include troctolite which has a greater perc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George King (botanist)
Sir George King (12 April 1840 – 12 February 1909) was a British botanist who was appointed superintendent of the Royal Botanic Garden, Calcutta in 1871, and became the first Director of the Botanical Survey of India from 1890. He was recognised for his work in the cultivation of cinchona and for setting up a system for the inexpensive distribution of quinine throughout India through the postal system. Early life George was born in Peterhead, Aberdeenshire, to Robert King and Cecilia Anderson. Robert King was a bookseller who moved to Aberdeen to partner with his brothers who were also in the book business. One brother Arthur was the founder of the Aberdeen University Press. Another brother George was an antiquarian, founder of a local liberal newspaper and a prominent writer on economic and social matters. King's parents both died from phthisis (tuberculosis), the father in November 1845 aged thirty six and the mother in 1850 at the age of forty. Orphaned at the age of ten, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneo Montane Rain Forests
The Borneo montane rain forests are an ecoregion, of cloud forest, within the tropical and subtropical moist broadleaf forests biome, of the island of Borneo in Southeast Asia. Location and description This ecoregion consists of tropical mountain cloud forest and laurel forest. In the higher elevations, above 1000 m, in the centre of Borneo with sections in Malaysia, Indonesia, and Brunei-owned territories of the island. These cooler and moister slopes stick up out of the carpet of thick rainforest that covers the warmer lowlands below, and as well as additional rainfall also derive moisture from low cloud. Soils are poorer and more acidic than the lowlands. Flora The isolated higher and cooler forests of the island are home to a rich and distinctive set of plants of both Asian and Australian origin. There are especially large numbers of '' Nepenthes'' pitcher plants (>15 species), rhododendrons, and orchids. This ecoregion also contains important areas of forest on lim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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