Sri Lanka Bay Owl
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Sri Lanka Bay Owl
The Sri Lanka bay owl (''Phodilus assimilis'') is a species of bay owl in the family Tytonidae. It is endemic to the island of Sri Lanka and the Western Ghats in Kerala, South Western India. It was considered a subspecies of the Oriental bay owl (''Phodilus badius'') but is now treated as a full species due to its distinctive call, plumage and disjunct distribution. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude grassland. It is threatened by habitat loss. Taxonomy The Sri Lanka bay owl was described by the English politician and naturalist Allan Octavian Hume in 1873 but it was only in 1877 that he introduced the binomial name ''Phodilus assimilis''. The genus name ''Phodilus'' is from the Ancient Greek ''phōs'' for "light" or "daylight" and ''deilos'' for "timid" or "cowardly". The specific epithet '' assimilis'' is the Latin for "similar" or "like". It was earlier considered a subspecies of the Oriental b ...
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Allan Octavian Hume
Allan Octavian Hume, CB ICS (4 June 1829 – 31 July 1912) was a British civil servant, political reformer, ornithologist and botanist who worked in British India. He was the founder of the Indian National Congress. A notable ornithologist, Hume has been called "the Father of Indian Ornithology" and, by those who found him dogmatic, "the Pope of Indian Ornithology". As an administrator of Etawah, he saw the Indian Rebellion of 1857 as a result of misgovernance and made great efforts to improve the lives of the common people. The district of Etawah was among the first to be returned to normalcy and over the next few years Hume's reforms led to the district being considered a model of development. Hume rose in the ranks of the Indian Civil Service but like his father Joseph Hume, a radical member of parliament, he was bold and outspoken in questioning British policies in India. He rose in 1871 to the position of secretary to the Department of Revenue, Agriculture, and Commerce und ...
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Grassland
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * "A ...
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Birds Of South India
This list of birds of South India includes bird from India south approximately of the Narmada River. Rollapadu in Andhra Pradesh, Nagarhole National Park) and Bandipur National Park in Karnataka; Rajamalai (Eravikulam National Park) and Periyar National Park in Kerala; Mudumalai National Park, Udhagamandalam, Indira Gandhi Wildlife Sanctuary in Anamalai, Vedanthangal and Point Calimere Wildlife and Bird Sanctuary in Kodikkarai, Tamil Nadu are notable bird watching locations in South India. Francolins and spurfowls *Painted francolin, ''Francolinus pictus'' *Grey francolin, ''Francolinus pondicerianus'' *Red spurfowl, ''Galloperdix spadicea'' *Painted spurfowl, ''Galloperdix lunulata'' Quails and buttonquails *Blue-breasted quail, ''Coturnix chinensis'' * Common quail, ''Coturnix coturnix'' * Rain quail, ''Coturnix coromandelica'' *Jungle bush quail, ''Perdicula asiatica'' *Rock bush quail, ''Perdicula argoondah'' *Painted bush quail, ''Perdicula erythrorhyncha'' *Small butt ...
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Birds Of Sri Lanka
Sri Lanka is a tropical island situated close to the southern tip of India. The bird life of Sri Lanka is very rich for its size and 524 species have been recorded. In addition to the many resident birds, a considerable number of bird migration, migratory species winter in the country to escape their northern breeding grounds. 34 species are confirmed as endemic (ecology), endemic. The other resident species are also found in the nearby Indian mainland, but over 80 have developed distinct Sri Lankan races. Some of these races are very different in their plumage characteristics from the related forms in India. 26 species are globally threatened. Bird distribution in Sri Lanka is largely determined by its climatic zones. The dry zone is largest of the three, covering more than half of the island, with a prolonged dry and hot period and only one monsoon (the north east monsoon from October to January). The wet zone, with two monsoons, is in the south western quarter of the island, w ...
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Phodilus
The bay owls (''Phodilus'') are a genus of Old World barn-owls. The defining characteristics of bay owls are their smaller bodies, in comparison to other barn owls, and their U- or V-shaped faces. These owls can be found in South to Southeast Asia, and parts of central Africa within forest and grassland ecosystems. Taxonomy and systematics The genus ''Phodilus'' was erected by the French zoologist Isidore Geoffroy Saint-Hilaire in 1830. Some taxonomists place two species in the genus, while others include three. The name is from the Ancient Greek ''phōs'' for "light" or "daylight" and ''deilos'' for "timid" or "cowardly". Most classification schemes recognize three extant species in this genus: Description Although bay owls are typically smaller, they bear resemblances to other barn owls. Other characteristics of the bay owl are groupings of feathers that resemble ears, and a divided face disk. Bay owls have also been attributed with U-or V-shaped faces. Their wings are round ...
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Binomial Name
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, name or a scientific name; more informally it is also historically called a Latin name. The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Homo sapiens''. ''Tyrannosaurus rex'' is likely the most widely known binomial. The ''formal'' introduction of this system of naming species is credit ...
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Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ...
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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 ...
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Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ...
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Bay Owl
The bay owls (''Phodilus'') are a genus of Old World barn-owls. The defining characteristics of bay owls are their smaller bodies, in comparison to other barn owls, and their U- or V-shaped faces. These owls can be found in South to Southeast Asia, and parts of central Africa within forest and grassland ecosystems. Taxonomy and systematics The genus ''Phodilus'' was erected by the French zoologist Isidore Geoffroy Saint-Hilaire in 1830. Some taxonomists place two species in the genus, while others include three. The name is from the Ancient Greek ''phōs'' for "light" or "daylight" and ''deilos'' for "timid" or "cowardly". Most classification schemes recognize three extant species in this genus: Description Although bay owls are typically smaller, they bear resemblances to other barn owls. Other characteristics of the bay owl are groupings of feathers that resemble ears, and a divided face disk. Bay owls have also been attributed with U-or V-shaped faces. Their wings are rounde ...
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Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ...
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Oriental Bay Owl
The Oriental bay owl (''Phodilus badius'') is a type of bay owl, usually classified with barn owls. It is completely nocturnal, and can be found throughout Southeast Asia and parts of India. It has several subspecies. It has a heart-shaped face with earlike extensions. The Congo bay owl (''Phodilus prigoginei'') was formerly classified as a subspecies of Oriental bay owl due to insufficient knowledge, but it has turned out that it might not even belong to the same genus. The Sri Lanka bay owl was also considered a subspecies. A population of this species has apparently become extinct on Samar Island in the Philippines during the 20th century. It was described as ''Phodilus badius riverae'' and was only ever known from a single specimen, which was lost in a bombing raid in 1945. The validity of this taxon is uncertain; it is usually synonymized with the nominate subspecies (for reasons of biogeography) or the subspecies ''saturatus'' (from external appearance); it might be a disti ...
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