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Red-rumped Bush Tyrant
The red-rumped bush tyrant (''Cnemarchus erythropygius'') is a species of bird in the family Tyrannidae. It is found in Bolivia, Colombia, Ecuador, and Peru. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude grassland. Description The adult red-rumped bush tyrant is about long. It has a narrow beak and distinctive colouring. The fore crown is white dappled with grey, and the hind-crown and nape are grey. There is an indistinct pale streak above the eye. The back, mantle, wings and tail are slatey-brown, with the rump and base of the outer tail feathers rufous. There are two white streaks on the wings. The throat is streaked in grey and white, the breast is grey and the belly rufous. Distribution and habitat The red-rumped bush tyrant is native to mountainous regions in South America. Its range includes the Sierra Nevada de Santa Marta and in the Andes in Norte de Santander Department and Cundinamarca State in north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Sclater
Philip Lutley Sclater (4 November 1829 – 27 June 1913) was an English lawyer and zoologist. In zoology, he was an expert ornithologist, and identified the main zoogeographic regions of the world. He was Secretary of the Zoological Society of London for 42 years, from 1860–1902. Early life Sclater was born at Tangier Park, in Wootton St Lawrence, Hampshire, where his father William Lutley Sclater had a country house. George Sclater-Booth, 1st Baron Basing was Philip's elder brother. Philip grew up at Hoddington House where he took an early interest in birds. He was educated in school at Twyford and at thirteen went to Winchester College and later Corpus Christi College, Oxford where he studied scientific ornithology under Hugh Edwin Strickland. In 1851 he began to study law and was admitted a Fellow of Corpus Christi College. In 1856 he travelled to America and visited Lake Superior and the upper St. Croix River, canoeing down it to the Mississippi. Sclater w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Nevada De Santa Marta
The Sierra Nevada de Santa Marta (English: ''Snow-Covered Mountain Range of Saint Martha'') is an isolated mountain range in northern Colombia, separate from the Andes range that runs through the north of the country. Reaching an elevation of just from the Caribbean coast, the Sierra Nevada is the highest coastal range in the tropics, and one of the highest coastal ranges in the world, being shorter than the Saint Elias Mountains in Canada. The Sierra Nevada encompasses about and serves as the source of 36 rivers. The range is in the Departments of Magdalena, Cesar and La Guajira. The highest point of the Sierra Nevada group (and Colombia in general) may be either Pico Cristóbal Colón or Pico Simón Bolívar, both in the municipalities of Santa Marta and Aracataca; it has yet to be determined which is higher. SRTM data and local topographic maps show that their true elevations are approximately , lower than the elevation that is often quoted. The Sierra Nevada i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1853
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Northern Andes
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cnemarchus
''Cnemarchus'' is a genus of South American birds in the tyrant flycatcher family Tyrannidae. The two member of this genus are elongated, upright-perching flycatchers that share similar tail patterns. They are found at high-altitudes. Taxonomy The genus ''Cnemarchus'' was introduced in 1905 by the American ornithologist Robert Ridgway with the red-rumped bush tyrant as the type species. The name combines the Ancient Greek ''knēmos'' meaning "mountain-slope" with ''arkhos'' meaning "ruler" or "chief". This genus formerly contained only the red-rumped bush tyrant. Molecular phylogenetic studies published in 2020 found that the red-rumped bush tyrant was a sister to the rufous-webbed bush tyrant in the monotypic genus ''Polioxolmis''. The two species had diverged around 4.5 million years ago. Based on these results, the genus ''Polioxolmis'' was merged into ''Cnemarchus'' placing both species in the genus ''Cnemarchus''. The genus therefore contains the following two species: * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evalu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cundinamarca State
Cundinamarca State was one of the states of Colombia. It was created on 15 June 1857 as Estado Federal de Cundinamarca (Federal State of Cundinamarca), in 1858 was recognized as ''Estado de la Federación'', and in the constitution of 1863 renamed as Estado Soberano (Sovereign State of Cundinamarca) of the United States of Colombia. Subdivisions With the law of 15 June 1857, the state was divided into 8 departments, but in 1858 most were abolished, leaving only Bogotá Department, Neiva Department, Mariquita Department, and San Martín Territory.Geografía Física y Política de la Confederación Granadina: Estado de Cundinamarca y Bogotá, Obra dirigida por el General Agustín Codazzi, 2003 Later in 1861, Mariquita Department and Neiva Department were separated to form Tolima State. Departments of 1862 By the law of 25 August 1862 the state was divided into 7 departamentos: * Bogotá Department * Cáqueza Department * Chocontá Department * Guatavita Departme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norte De Santander Department
North Santander (Spanish: Norte de Santander) () is a department of Northeastern Colombia. It is in the north of the country, bordering Venezuela. Its capital is Cúcuta, one of the country's major cities. North Santander is bordered by Venezuela to the east and north, by Santander Department and Boyacá Department to the south, and by Santander Department and Cesar Department to the west. The official Department name is "''Departamento de Norte de Santander''" (North Santander Department) in honor of Colombian military and political leader Francisco de Paula Santander, who was born and raised near Cúcuta. North Santander Department is located in the northwestern zone of the Colombian Andean Region. The area of present-day Norte de Santander played an important role in the history of Colombia, during the War of Independence from Spain when Congress gave origin to the Greater Colombia in Villa del Rosario. History Pre-Colombian The jungle zone and the valleys of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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) * " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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