White-throated Screech Owl
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White-throated Screech Owl
The white-throated screech owl (''Megascops albogularis'') is a small owl found in the Andes of Bolivia, Colombia, Ecuador, Peru and Venezuela. Taxonomy and systematics The white-throated screech owl was described by the American ornithologist John Cassin in 1849 and given the binomial name ''Syrnium albo-gularis''. The title page is dated 1848 but the volume was not published until the following year. Five subspecies are currently recognized: *''M. a. obscurus'' Phelps & Phelps Jr. (1953) *''M. a. meridensis'' Chapman (1923) *''M. a. macabrus'' Bonaparte (1850) *''M. a. albogularis'' Cassin (1849) *''M. a. remotus'' Bond & Meyer de Schauensee (1941) However, its taxonomy is not certain. The species has sometimes been placed in the monotypic genus ''Macabra'', but DNA studies show it is closely related to several other ''Megascops'' owls. At the subspecies level, ''M. a. obscurus'' is sometimes considered a color morph of ''M. a. meridensis'' or ''M. a. remotus''. The pop ...
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John Cassin
John Cassin (September 6, 1813 – January 10, 1869) was an American ornithologist from Pennsylvania. He worked as curator and Vice President at the Philadelphia Academy of Natural Sciences and focused on the systemic classification of the Academy's extensive collection of birds. He was one of the founders of the Delaware County Institute of Science and published several books describing 194 new species of birds. Five species of North American birds, a cicada and a mineral are named in his honor. Early life and education Cassin was born in Upper Providence Township, Pennsylvania on September 6, 1813. He was educated at the Westtown School in Westtown, Pennsylvania. His great Uncle, John Cassin, was a commodore in the U.S. Navy and served in the War of 1812. He served in the Union Army during the American Civil War and was held prisoner in the infamous Confederate Libby Prison in Richmond, Virginia. Career Cassin moved to Philadelphia in 1834 and became the head of a lith ...
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Rufescent Screech Owl
The rufescent screech owl (''Megascops ingens'') is a species of owl in the family Strigidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. Taxonomy and systematics The rufescent screech owl has three subspecies, the nominate ''M. i. ingens'', ''M. i. venezuelanus'', and ''M. i. columbianus''. The last was formerly considered a distinct species, "Colombian screech owl". Two other forms that had previously been described as subspecies are now treated as individual variations of the nominate.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021Marín-Gómez, O. H., D. W. Holt, R. Berkley, C. Deppe, P. L. Enríquez, J. L. Petersen, J. L. Rangel Salazar, K. P. Segars, K. L. Wood, and ...
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Megascops
Screech owls are typical owls ( Strigidae) belonging to the genus ''Megascops'' with 23 living species. For most of the 20th century, this genus was merged with the Old World scops owls in ''Otus'', but nowadays it is again considered separately based on a range of behavioral, biogeographical, morphological, and DNA sequence data. Screech owls are restricted to the Americas. Some species formerly placed with them are nowadays considered more distinct (see below for details). Description Similar to other owls, the screech owl females are larger than the males of their species. They have a compact size and shape. They are small and agile, and about 7 to 10 inches tall and have a wingspan around 18 to 24 inches. They have prominent, wide-set feather tufts with bright yellow/green eyes. They have different brownish hues with whitish, patterned underside. This coloration helps them get camouflage against the tree bark. Ecology and behavior Screech owls hunt from perches in ...
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IUCN
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 ...
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Phenology
Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonality, seasonal and interannual variations in climate, as well as environmental factor, habitat factors (such as elevation). Examples include the date of emergence of leaves and flowers, the first flight of butterflies, the first appearance of bird migration, migratory birds, the date of leaf colouring and fall in deciduous trees, the dates of egg-laying of birds and amphibia, or the timing of the developmental cycles of temperate-zone honey bee colonies. In the scientific literature on ecology, the term is used more generally to indicate the time frame for any seasonal biological phenomena, including the dates of last appearance (e.g., the seasonal phenology of a species may be from April through September). Because many such phenomena are very sensitive to small variations in climate, especially to temperature, phenological records can be a useful proxy (climate), proxy for ...
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Nocturnal
Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed senses of hearing, smell, and specially adapted eyesight. Some animals, such as cats and ferrets, have eyes that can adapt to both low-level and bright day levels of illumination (see metaturnal). Others, such as bushbabies and (some) bats, can function only at night. Many nocturnal creatures including tarsiers and some owls have large eyes in comparison with their body size to compensate for the lower light levels at night. More specifically, they have been found to have a larger cornea relative to their eye size than diurnal creatures to increase their : in the low-light conditions. Nocturnality helps wasps, such as ''Apoica flavissima'', avoid hunting in intense sunlight. Diurnal animals, including squirrels and songbirds, are active du ...
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Cloud Forest
A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest (TMCF), is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level, formally described in the ''International Cloud Atlas'' (2017) as silvagenitus. Cloud forests often exhibit an abundance of mosses covering the ground and vegetation, in which case they are also referred to as mossy forests. Mossy forests usually develop on the saddles of mountains, where moisture introduced by settling clouds is more effectively retained. Cloud forests are among the most biodiversity rich ecosystems in the world with a large amount of species directly or indirectly depending on them. Other moss forests include black spruce/feathermoss climax forest, with a moderately dense canopy and a forest floor of feathermosses including ''Hylocomium splendens'', ''Pleurozium schreberi'' and ''Ptil ...
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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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Cochabamba Department
Cochabamba ( ay, Quchapampa Jach'a Suyu, es, Departamento de Cochabamba , qu, Quchapampa Suyu), from Quechua ''qucha'' or ''qhucha'', meaning "lake", ''pampa'' meaning "plain", is one of the nine departments of Bolivia. It is known to be the "granary" of the country because of its variety of agricultural products from its geographical position. It has an area of 55,631 km2. Its population in the 2012 census was 1,758,143. Its capital is the city of Cochabamba, known as the "City of Eternal Spring" and "The Garden City" because of its spring-like temperatures all year. History The Cochabamba valley was inhabited for over a thousand years due to its fertile productive soils and climate. Archaeological evidence suggests that the initial valley inhabitants were of various ethnic indigenous groups. Tiwanaku, Tupuraya, Mojocoya, Omereque and Inca inhabited the valley at various times before the Spanish arrived. The first Spanish inhabitant of the Valley was Garci Ruiz de Orell ...
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Department Of Cajamarca
Cajamarca (; qu, Kashamarka; ay, Qajamarka) is a department and region in Peru. The capital is the city of Cajamarca. It is located in the north part of the country and shares a border with Ecuador. The city has an elevation of above sea level in the Andes Mountain Range, the longest mountain range in the world. Part of its territory includes the Amazon Rainforest, the largest in the world. History The oldest known irrigation canals in the Americas are located in the Nanchoc District of Cajamarca Department. The canals in the Zaña Valley have been radiocarbon dated to 3400 BCE, and possibly date to 4700 BCE. From the 6th to the 10th century the people of the Wari culture ruled earlier cultures in the highlands. They established the administrative center of Wiraquchapampa. In the 15th century, the Incas conquered the territory, expanding their empire. They established their regional capital in what is now Cajamarca. The Incas in 1465 established a new province there to s ...
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Serranía Del Perijá
The Serranía del Perijá, Cordillera de Perijá or Sierra de Perijá is a mountain range, an extension of the eastern Andean branch ( Cordillera Oriental), in northern South America, between Colombia and Venezuela, ending further north in the Guajira Desert, a total distance of about . It separates the Maracaibo Basin from the Cesar-Ranchería Basin. Some of the area has been considered as a Flora and Fauna Sanctuary. Geography Starting at the southernmost point, near Ocaña, Colombia, this mountain range forms the boundary between the Colombian departments of Norte de Santander and Cesar, and then as the range progresses north, it forms the international boundary between Venezuela ( Zulia State) and Colombia (Cesar Department). Included in the range are the Sierra Motilones, Sierra Valledupar, and Sierra Oca. The highest point is Cerro de Las Tetas at 3630 meters, followed by Cerro Irapa at 3540 m., Serranía de Macuira at 864 m., and Cerro Aceite at 853 m. Peoples ...
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Nuchal
The nape is the back of the neck. In technical anatomical/medical terminology, the nape is also called the nucha (from the Medieval Latin rendering of the Arabic , "spinal marrow"). The corresponding adjective is ''nuchal'', as in the term ''nuchal rigidity'' for neck stiffness. In many mammals the nape bears a loose, non-sensitive area of skin, known as the scruff, by which a mother carries her young by her teeth, temporarily immobilizing it during transport. In the mating of cats the male will grip the female's scruff with his teeth to help immobilize her during the act, a form of pinch-induced behavioral inhibition Pinch-induced behavioural inhibition (PIBI), also called dorsal immobility, transport immobility or clipnosis, is a partially inert state which results from a gentle squeeze of the skin behind the neck. It is mostly observed among cats and allows .... Cultural connotations In traditional Japanese culture, the was one of the few areas of the body (other than f ...
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