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Oligoryzomys Magellanicus
''Oligoryzomys magellanicus'', also known as the Patagonian colilargo and the Magellanic pygmy rice rat, is a species of rodent in the genus ''Oligoryzomys'' of the family Cricetidae. It is found in the southernmost parts of Argentina and Chile, including Tierra del Fuego and other outlying islands. Its karyotype has 2n = 54 and FNa = 66. Taxonomy There has been discussion as to whether ''Oligoryzomys magellanicus'' should be regarded as a full species or whether it should be considered to be a subspecies of '' Oligoryzomys longicaudatus''. Milton H. Gallardo and Eduardo Palma (1990) recognised it as a valid species, basing their findings on "phallic morphology and karyotypic and morphometric data". Description The Magellanic pygmy rice rat has a head-and-body length about equal to the length of its tail. The ears are moderately large, and are rounded with hairs on both surfaces. The dorsal pelage is greyish-buff and the underparts are whitish. The upper surface of both fore an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Debell Bennett
Frederick Debell Bennett (1806–1859) was an English ship surgeon and biologist. Born to a family of means in Devon, England, in 1806, he obtained his Licentiate of the Society of Apothecaries (L.S.A.) in 1828, and his membership of the Royal College of Surgeons in 1829. Bennett first served as Assistant Surgeon on the hospital ship ''Grampus'', which was moored on the River Thames. Then in 1833 Bennett joined the London whaleship '' Tuscan''. From 1833 to 1836 he sailed round the globe on board the 'Tuscan'. The task of this journey was to study whales, lands and nature. He described several species, including the whalesucker (''Remora australis''), the blue noddy and '' Cheilopogon nigricans''. He was also a member of the Royal Geographical Society. After his return he practiced medicine in Southwark Southwark ( ) is a district of Central London situated on the south bank of the River Thames, forming the north-western part of the wider modern London Borough of Southw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valle Del Frances
Valle may refer to: * Valle (surname) Geography *"Valle", the cultural and climatic zone of the dry subtropical Interandean Valles of the Andes of Peru, Bolivia, and northwest Argentina *University of Valle, a public university in Cali, Colombia *Bale, Croatia, or Valle, a small town and municipality in Istria county, Croatia *Valle, Ecuador, a town and parish in Cuenca Canton, Azuay Province, Ecuador *Valle Department, a department in southern Honduras *Valle di Cadore, a municipality Belluno, Veneto, Italy *Valle Parish, an administrative unit of Aizkraukle district, Latvia *Valle Hundred, a hundred of Västergötland county, Sweden *Valle, Arizona, United States Norway *Valle, or Valle-Hovin, a neighborhood in the capital city of Oslo *Valle, Telemark, a village in the municipality of Bamble in Telemark county *Valle, Møre og Romsdal, a village in the municipality of Ålesund in Møre og Romsdal county *Valle, Norway, a municipality in the Setesdal valley in Agder county *Val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1836
A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three Evolution of mammalian auditory ossicles, middle ear bones. These characteristics distinguish them from reptiles and birds, from which their ancestors Genetic divergence, diverged in the Carboniferous Period over 300 million years ago. Around 6,640 Neontology#Extant taxon, extant species of mammals have been described and divided into 27 Order (biology), orders. The study of mammals is called mammalogy. The largest orders of mammals, by number of species, are the rodents, bats, and eulipotyphlans (including hedgehogs, Mole (animal), moles and shrews). The next three are the primates (including humans, monkeys and lemurs), the Artiodactyl, even-toed ungulates (including pigs, camels, and whales), and the Carnivora (including Felidae, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Chile
A mammal () is a vertebrate animal of the class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles and birds, from which their ancestors diverged in the Carboniferous Period over 300 million years ago. Around 6,640 extant species of mammals have been described and divided into 27 orders. The study of mammals is called mammalogy. The largest orders of mammals, by number of species, are the rodents, bats, and eulipotyphlans (including hedgehogs, moles and shrews). The next three are the primates (including humans, monkeys and lemurs), the even-toed ungulates (including pigs, camels, and whales), and the Carnivora (including cats, dogs, and seals). Mammals are the only living members of Synapsida; this clade, together with Sauropsida (reptiles and birds), constitutes the larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Argentina
This is a list of the native mammal species recorded in Argentina. As of January 2020, the list contains 402 mammal species from Argentina, of which one is extinct, seven are critically endangered, seventeen are endangered, sixteen are vulnerable, and thirty are near threatened. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature; those on the left are used here, those in the second column in some other articles: Subclass: Theria Infraclass: Metatheria Superorder: Ameridelphia =Order: Didelphimorphia (common opossums)= Didelphimorphia is the order of common opossums of the Western Hemisphere. Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene. They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail. *Family: Didelphidae (American opossums) **Subfamily: Caluromyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife 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 15,636) in the IUCN database still use the code "LR/lc", which indicates they have not been re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. 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 partners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patagonia
Patagonia () is a geographical region that includes parts of Argentina and Chile at the southern end of South America. The region includes the southern section of the Andes mountain chain with lakes, fjords, temperate rainforests, and glaciers in the west and Patagonian Desert, deserts, Plateaus, tablelands, and steppes to the east. Patagonia is bounded by the Pacific Ocean on the west, the Atlantic Ocean to the east, and many bodies of water that connect them, such as the Strait of Magellan, the Beagle Channel, and the Drake Passage to the south. The northern limit of the region is not precisely defined; the Colorado River, Argentina, Colorado and Barrancas River, Barrancas rivers, which run from the Andes to the Atlantic, are commonly considered the northern limit of Argentine Patagonia. The archipelago of Tierra del Fuego is sometimes considered part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in Araucanía R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torres Del Paine National Park
Torres del Paine National Park () is a national park encompassing mountains, glaciers, lakes, and rivers in southern Chilean Patagonia. The Cordillera del Paine is the park's centerpiece. It lies in a transition area between the Magellanic subpolar forests and the Patagonian Steppes. The park is located north of Puerto Natales and north of Punta Arenas. The park borders Bernardo O'Higgins National Park to the west and the Los Glaciares National Park to the north in Argentine territory. ''Paine'' means "blue" in the native Tehuelche (Aonikenk) language and is pronounced ''PIE-neh''. It was established as a National Park in 1959. Torres del Paine National Park is part of the ''Sistema Nacional de Áreas Silvestres Protegidas del Estado de Chile'' (National System of Protected Forested Areas of Chile). In 2013, it measured approximately . It is one of the largest and most visited parks in Chile. The park averages around 252,000 visitors a year, of which 54% are foreign touri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abrothrix Olivaceus
''Abrothrix olivacea'', also known as the olive grass mouse or olive akodont,Musser and Carleton, 2005, p. 1090 is a species of rodent in the genus ''Abrothrix'' of family Cricetidae. It is found from northern Chile into southern Chile and Argentina, including the islands of Tierra del Fuego. It is prone to large swings in population size. Taxonomy ''Abrothrix olivacea'' has had a complex history in both of the genera ''Akodon'' and ''Abrothrix'', and includes at least 27 synonyms. A few, including ''markhami'', ''mansoensis'', and ''xanthorhinus'' have been viewed as valid species until recent years, and several subspecies are still recognized, including ''Abrothrix olivacea markhami''. Description The olive grass mouse is a small rodent with a total length of about . The upper parts are greyish-brown, sometimes slightly yellowish around the snout, and the underparts are pale to mid-grey. Distribution and habitat This species is found in northern and central Chile and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligoryzomys Longicaudatus
''Oligoryzomys longicaudatus'', also known as the long-tailed colilargo or long-tailed pygmy rice rat, is a species of rodent in the genus ''Oligoryzomys'' of the family Cricetidae. It is found in the southern Andes of Chile and Argentina, with an outlying population in eastern Argentina. As a common species with a wide range and a stable population, the International Union for Conservation of Nature has rated this rodent as being of "least concern". Description ''O. longicaudatus'' grows to a total length of , including a tail of , and weighs about . The ears are quite small and are scantily clad with hairs. The tail is also scantily haired and is dark above and pale on the underside. The fur on the back is buff with fine pale brown and black lines, the greyish base of the hairs sometimes being visible. The underparts are greyish-white. The tail is shorter at the southern end of the range, and in Argentina, the fur is tinted with ochre, especially on the flanks. Its karyotype h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/ricochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, Cavia, guinea pigs, and hamsters. Once included wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
