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Saffron Toucanet
The saffron toucanet (''Pteroglossus bailloni'') is a species of bird in the family Ramphastidae found in the Atlantic Forest in far north-eastern Argentina, south-eastern Brazil, and eastern Paraguay. Taxonomy and systematics This species' scientific name honors Louis Antoine François Baillon. The saffron toucanet was originally described in the genus ''Ramphastos'' and has also been placed in the genus ''Andigena'' by some authorities. It was formerly placed in the monotypic genus ''Baillonius'', but Kimura ''et al.'' (2004) were able to show that the saffron toucanet belongs in the genus '' Pteroglossus''. In a later study, it was later confirmed by analyzing the molecular sequence of the saffron by Pereira ''et al''. (2008). The finding was supported by vocalization and anatomical characteristics that were similar to other Pteroglossus species.Pereira, Sergio L., and Anita Wajntal. "The Historical Biogeography of Pteroglossus Aracaris (Aves, Piciformes, Ramphastidae) Based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Jean Pierre Vieillot
Louis Pierre Vieillot (10 May 1748, Yvetot – 24 August 1830, Sotteville-lès-Rouen) was a French ornithologist. Vieillot is the author of the first scientific descriptions and Linnaean names of a number of birds, including species he collected himself in the West Indies and North America and South American species discovered but not formally named by Félix de Azara and his translator Sonnini de Manoncourt. He was among the first ornithologists to study changes in plumage and one of the first to study live birds. At least 77 of the genera erected by Vieillot are still in use. Biography Vieillot was born in Yvetot. He represented his family's business interests in Saint-Domingue (Haiti) on Hispaniola, but fled to the United States during the Haitian rebellions that followed the French Revolution. On Buffon's advice, he collected material for the ''Histoire naturelle des oiseaux de l'Amérique Septentrionale,'' the first two volumes of which were published in France beginning i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of habitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itatiaia National Park
Itatiaia National Park ( pt, Parque Nacional do Itatiaia), established in 1937, is the oldest national park in Brazil. It is located on the border between the states of Rio de Janeiro and Minas Gerais. Location The Itatiaia National Park is the oldest national park of Brazil, created on 14 June 1937 by President Getúlio Vargas. The park is in the Mantiqueira Mountains. It covers parts of the municipalities of Itatiaia and Resende in Rio de Janeiro state, and Bocaina de Minas and Itamonte in Minas Gerais state. It is mountainous and rocky with altitudes ranging from . The highest point is the Black Needles peak ( Pico das Agulhas Negras). The higher part of the park contains the origins of 12 river basins that supply the Rio Grande (Grand River), a tributary of the Paraná River, and the Paraíba do Sul, the most important river in Rio de Janeiro state. The lower part of the park has lush Atlantic Forest vegetation and wide rivers with natural pools and waterfalls. The Pico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BirdLife International
BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding important sites for birds, maintaining and restoring key bird habitats, and empowering conservationists worldwide. It has a membership of more than 2.5 million people across 116 country partner organizations, including the Royal Society for the Protection of Birds, the Wild Bird Society of Japan, the National Audubon Society and American Bird Conservancy. BirdLife International has identified 13,000 Important Bird and Biodiversity Areas and is the official International Union for Conservation of Nature’s Red List authority for birds. As of 2015, BirdLife International has established that 1,375 bird species (13% of the total) are threatened with extinction ( critically endangered, endangered or vulnerable). BirdLife International p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...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] |
White-spotted Woodpecker
The white-spotted woodpecker (''Veniliornis spilogaster'') is a species of bird in subfamily Picinae of the woodpecker family Picidae. It is found in Argentina, Brazil, Paraguay, and Uruguay. Taxonomy and systematics The International Ornithological Committee and BirdLife International's ''Handbook of the Birds of the World'' place the white-spotted woodpecker in genus ''Veniliornis''.HBW and BirdLife International (2022) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip retrieved December 13, 2022 However, starting in 2018, the American Ornithological Society and the Clements taxonomy moved all species of genus ''Veniliornis'' into genus ''Dryobates''.R. Terry Chesser, Kevin J. Burns, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Pamela C. Rasmussen, J. V. Remsen, Jr., Douglas F. Stot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-rumped Cacique
The red-rumped cacique (''Cacicus haemorrhous'') is a species of bird in the family Icteridae. It is a species of the Amazon Basin and the Guyanas in northern South America, and is only coastal there in the Guyanas and the Amazon River outlet to the Atlantic; a separate large disjunct range exists in all of south-eastern and coastal Brazil, including Paraguay, and parts of north-eastern Argentina. It is also found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. The red-rumped cacique's natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and heavily degraded former forest. In 1760 the French zoologist Mathurin Jacques Brisson included a description of the red-rumped cacique in his ''Ornithologie'' based on a specimen collected in Cayenne in French Guiana. He used the French name ''Le cassique rouge'' and the Latin name ''Cassicus ruber''. The two stars (**) at the start of the section ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preening (bird)
Preening is a found in birds that involves the use of the beak to position feathers, interlock feather that have become separated, clean plumage, and keep ectoparasites in check. Feathers contribute significantly to a bird's insulation, waterproofing and aerodynamic flight, and so are vital to its survival. Because of this, birds spend considerable time each day maintaining their feathers, primarily through preening. Several actions make up preening behaviour. Birds fluff up and shake their feathers, which helps to "rezip" feather barbules that have become unhooked. Using their beaks, they gather preen oil from a gland at the base of their tail and distribute this oil through their feathers. They draw each contour feather through their bill, nibbling it from base to tip. Over time, some elements of preening have evolved to have secondary functions. Ritualised preening has become a part of some courtship displays, for example. It is also a displacement activity that can occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diameter At Breast Height
Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements. Tree trunks are measured at the height of an adult's breast, which is defined differently in different countries and situations. In many countries, DBH is measured at approximately above ground. Global variation and scientific precision The height can make a substantial difference to the measured diameter. In the United States, DBH is typically measured at above ground. In some countries, such as Australia, New Zealand, Burma, India, Malaysia, and South Africa, breast height diameter has historically been measured at a height of , but because of much active research into allometrics that are being applied to trees and forests, the convention of is more appropriate. Ornamental trees are usually measured at 1.5 metres above ground. Some authors have argued that the term DBH should be aboli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidosperma Australe
''Aspidosperma australe'' is a timber tree native to Brazil, Argentina, Bolivia, and Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ....Morokawa, R. & al. (2013). Apocynaceae s. str. do Parque Nacional da Serra da Canastra, Minas Gerais, Brasil. Rodriguésia; Revista do Instituto de Biologia Vegetal, Jardim Botânico e Estaçao Biologica do Itatiaya 64: 179-199. References australe Trees of Brazil Plants described in 1860 {{tree-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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