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Saffron-crowned Tanager
The saffron-crowned tanager (''Tangara xanthocephala'') is a species of bird in the family Thraupidae. Found in the northern Andes of Bolivia, Colombia, Ecuador, Peru, and Venezuela, it inhabits cloud forest, forest edges, and secondary forest, preferring areas with mossy trees. It is an average-sized species of tanager with a blue-green body and yellow head with a black forecrown, lores, orbital area, and chin. It forages in pairs or small groups of 3–7 individuals that are part of mixed-species flocks. It is the most frugivorous species in the genus '' Tangara'', although it also feeds on insects. It forms breeding pairs and is thought to be socially monogamous. The only known nest contained a clutch of two eggs. It is listed as being a species of least concern by the International Union for Conservation of Nature (IUCN) on the IUCN Red List, but may be threatened by habitat destruction. Taxonomy and systematics The saffron-crowned tanager was first described as ''Cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Jakob Von Tschudi
Johann Jakob von Tschudi (25 July 1818 – 8 October 1889) was a Switzerland, Swiss Natural history, naturalist, explorer and diplomat. Biography Tschudi was born in Glarus to Johann Jakob Tschudi, a merchant, and Anna Maria Zwicky. He studied natural sciences and medicine at the universities of Neuchâtel, Leiden and Paris. In 1838 he travelled to Peru, where he remained for five years exploring and collecting plants in the Andes. He went to Vienna in 1843. In 1845 he described 18 new species of South American reptiles. Between 1857 and 1859 he visited Brazil and other countries in South America. In 1860 he was appointed Swiss ambassador to Brazil, remaining so until 1868, and again spent time exploring the country and collecting plants for the museums of Neuchâtel, Glarus, and Freiburg. In 1868 he became minister to Vienna. Peru He wrote a textbook on Peru called ''Peruvian antiquities'' in which he recorded various aspects of Peruvian life and history. In his book he explai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Socially Monogamous
Monogamy ( ) is a form of dyadic relationship in which an individual has only one partner during their lifetime. Alternately, only one partner at any one time (serial monogamy) — as compared to the various forms of non-monogamy (e.g., polygamy or polyamory). The term is also applied to the social behavior of some animals, referring to the state of having only one mate at any one time. A monogamous relationship can be sexual or emotional, but it's usually both. Many modern relationships are monogamous. Terminology The word ''monogamy'' derives from the Greek μονός, ''monos'' ("alone"), and γάμος, ''gamos'' ("marriage").Cf. "Monogamy" in ''Britannica World Language Dictionary'', R.C. Preble (ed.), Oxford-London 1962, p. 1275:''1. The practice or principle of marrying only once. opp. to digamy now ''rare'' 2. The condition, rule or custom of being married to only one person at a time (opp. to polygamy or bigamy) 1708. 3. Zool. The habit of living in pairs, or havi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue-whiskered Tanager
The blue-whiskered tanager (''Tangara johannae'') is a species of bird in the family Thraupidae. It is found in the Chocó of Colombia and Ecuador. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss. References blue-whiskered tanager Birds of the Tumbes-Chocó-Magdalena blue-whiskered tanager The blue-whiskered tanager (''Tangara johannae'') is a species of bird in the family Thraupidae. It is found in the Chocó of Colombia and Ecuador. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat ... Taxonomy articles created by Polbot {{Thraupidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species-group
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avibase
Avibase is an online taxonomic database that organizes bird taxonomic and distribution data globally. At its core, the database relies on the notion of taxonomic concepts. rather than taxonomic names (see also for the rationale of using taxonomic concepts). Avibase incorporates and organizes taxonomic data from the main avian taxonomic publishers (''The Clements Checklist of Birds of the World'', ''Handbook of the Birds of the World'', BirdLife International, IOC Checklist and the ''Howard and Moore Complete Checklist of the Birds of the World'') and other regional sources (e.g. all editions of the '' American Ornithological Society Checklist of North American Birds'' since 1886). Taxonomic concepts in over 230 different taxonomic sources have been mapped and cross-referenced to Avibase concepts. The website also offers checklists for more than 20,000 geographic regions of the world, species pages with taxonomic information and synonyms, and tools for observers to maintain thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Ornithologists' Union
The International Ornithologists' Union, formerly known as the International Ornithological Committee, is a group of about 200 international ornithologists, and is responsible for the International Ornithological Congress and other international ornithological activities, undertaken by its standing committees. International Ornithological Congress The International Ornithological Congress series forms the oldest and largest international series of meetings of ornithologists. It is organised by the International Ornithologists' Union. The first meeting was in 1884; subsequent meetings were irregular until 1926 since when meetings have been held every four years, except for two missed meetings during and in the immediate aftermath of the Second World War. Meetings See also * '' Birds of the World: Recommended English Names'', a book written by Frank Gill Frank Gill may refer to: * Frank Gill (Australian footballer) (1908–1970), Australian rules footballer with Carlton * Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Name
In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrasted with the scientific name for the same organism, which is Latinized. A common name is sometimes frequently used, but that is not always the case. In chemistry, IUPAC defines a common name as one that, although it unambiguously defines a chemical, does not follow the current systematic naming convention, such as acetone, systematically 2-propanone, while a vernacular name describes one used in a lab, trade or industry that does not unambiguously describe a single chemical, such as copper sulfate, which may refer to either copper(I) sulfate or copper(II) sulfate. Sometimes common names are created by authorities on one particular subject, in an attempt to make it possible for members of the general public (including such interested par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christopher Helm
Christopher Alexander Roger Helm (born Dundee, 1 February 1937 – 20 January 2007) was a Scottish book publisher, notably of ornithology related titles, including the ''Helm Identification Guides''. Born in Dundee, he was raised in Forfar, where his father was a Presbyterian minister. The family moved to Tunbridge Wells at the start of World War II, and he was educated at Harrow School, then, after active duty in Cyprus with the Highland Light Infantry (as National Service), he graduated in classics and law from Gonville and Caius College, Cambridge in 1960. Having worked for Macmillan, he set up and, in turn, sold each of Croom Helm (founded in 1972, bought by Associated Book Publishers in 1986 and merged into the Routledge imprint in 1992), Christopher Helm Publishers and Pica Press (both of the latter pair being bought by A & C Black, now part of Bloomsbury Publishing Plc). He was an active member of the council of the British Ornithologists' Union, becoming vice-preside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. Dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tupi Language
Old Tupi, Ancient Tupi or Classical Tupi (also spelled as Tupí) is an extinct Tupian language which was spoken by the aboriginal Tupi people of Brazil, mostly those who inhabited coastal regions in South and Southeast Brazil. It belongs to the Tupi–Guarani language family, and has a written history spanning the 16th, 17th, and early 18th centuries. In the early colonial period, Tupi was used as a ''lingua franca'' throughout Brazil by Europeans and aboriginal Americans, and had literary usage, but it was later suppressed almost to extinction. Today, only one modern descendant is living, the Nheengatu language. The names Old Tupi or classical Tupi are used for the language in English and by modern scholars (it is referred to as in Portuguese), but native speakers called it variously "the good language", "common language", "human language", in Old Tupi, or, in Portuguese, "general language", "Amazonian general language", "Brazilian language". History Old Tupi was firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
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 provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
