|
Nesoryzomys
''Nesoryzomys'' is a genus of rodent in the tribe Oryzomyini of family Cricetidae, endemic to the Galápagos Islands. Five species have been described, with two of them considered extinct. Other rodents restricted to the Galápagos include '' Megaoryzomys curioi'' and ''Aegialomys galapagoensis The Galápagos rice rat (''Aegialomys galapagoensis''), also known as the Galápagos oryzomys, is a species of rodent that is endemic to the Galápagos Islands. Description The Galapagos rice rat is a medium-sized rodent, with a head-body lengt ...''. References Castañeda-Rico, S., Johnson, S. A., Clement, S. A., Dowler, R. C., Maldonado, J. E., & Edwards, C. W. (2019). Insights into the evolutionary and demographic history of the extant endemic rodents of the Galápagos Islands. Therya, 10(3). https://doi.org/10.12933/therya-19-873 Endemic fauna of the Galápagos Islands Rodent genera Taxonomy articles created by Polbot {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys Narboroughi
''Nesoryzomys narboroughi'' is a rodent in the genus ''Nesoryzomys'' from Fernandina Island in the Galápagos Islands. Taxonomy '' Nesoryzomys indefessus'', a related extinct species, was found on Indefatigable Island. Some consider the two to be subspecies of one species, in which the Fernandina form would be ''Nesoryzomys indefessus narboroughi''; however, ''N. narboroughi'' is now considered distinct.Dowler, R. C. 2015. Genus Nesoryzomys Heller, 1904. In: Patton, J.L., Pardiñas, U.F.J. and D'Elía, G. (eds), Mammals of South America , pp. 390-393. University of Chicago Press. Conservation Due to Fernandina Island's small size, as well as vulnerability to invasive species, ''N. narborughi'' was rated by the IUCN Red List as a Vulnerable species A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys
''Nesoryzomys'' is a genus of rodent in the tribe Oryzomyini of family Cricetidae, endemic to the Galápagos Islands. Five species have been described, with two of them considered extinct. Other rodents restricted to the Galápagos include '' Megaoryzomys curioi'' and ''Aegialomys galapagoensis The Galápagos rice rat (''Aegialomys galapagoensis''), also known as the Galápagos oryzomys, is a species of rodent that is endemic to the Galápagos Islands. Description The Galapagos rice rat is a medium-sized rodent, with a head-body lengt ...''. References Castañeda-Rico, S., Johnson, S. A., Clement, S. A., Dowler, R. C., Maldonado, J. E., & Edwards, C. W. (2019). Insights into the evolutionary and demographic history of the extant endemic rodents of the Galápagos Islands. Therya, 10(3). https://doi.org/10.12933/therya-19-873 Endemic fauna of the Galápagos Islands Rodent genera Taxonomy articles created by Polbot {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys Swarthi
''Nesoryzomys swarthi'', also known as the Santiago nesoryzomysMusser and Carleton, 2005 or Santiago Galápagos mouse, is a species of rodent in the genus ''Nesoryzomys'' of family Cricetidae. It is found only on Santiago in the Galápagos Islands. Its natural habitat is subtropical or tropical dry shrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It .... It was considered extinct since it was last recorded in 1906, but it was rediscovered in 1997. A smaller, related rice rat was also rediscovered—the Fernandina rice rat ('' Nesoryzomys fernandinae'') on Fernandina.Dowler, R.C., Carroll, D.S. and Edwards, C.W. 2000. Rediscovery of rodents (Genus ''Nesoryzomys'') considered extinct in the Galápagos Islands. Oryx 34(2):109–118. References Literature cited *Musser, G.G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys Darwini
''Nesoryzomys darwini'', also known as Darwin's nesoryzomys or Darwin's Galápagos mouse, is a species of rodent in the genus ''Nesoryzomys'' that lived on Santa Cruz Island in the Galápagos Islands The Galápagos Islands ( es, Islas Galápagos) are an archipelago of volcanic islands in the Eastern Pacific, located around the Equator west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with .... It was probably nocturnal and inhabited burrows or rock crevices under bushes. Only four specimens exist, collected by Frank Wonder between 12 and 16 January 1929. This extinction may have been caused by competition and disease created by the introduction of nonnative brown and black rats. The other ''Nesoryzomys'' known from Santa Cruz, '' Nesoryzomys indefessus'', is also extinct there; other species of the genus survive on different islands.Dowler et al., 2000 References Literature cited *Dowler, R.C., Carroll, D.S. and Edwards, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys Fernandinae
''Nesoryzomys fernandinae'', also known as the Fernandina nesoryzomys, Fernandina rice rat, or Fernandina Galápagos mouse, is a species of rodent in the genus ''Nesoryzomys'' of family Cricetidae. It is found only on Fernandina in the Galápagos Islands (part of Ecuador), which it shares with '' N. narboroughi''. Its natural habitat is subtropical or tropical dry shrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It .... The conservation status of this endemic species continues to be investigated. References Literature cited *Duff, A. and Lawson, A. 2004. Mammals of the World: A checklist. New Haven, Connecticut: Yale University Press, 312 pp. *Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. 894–1531 in Wilson, D.E. and Reeder, D.M. (eds.)Mammal Speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesoryzomys Indefessus
''Nesoryzomys indefessus'', also known as the Santa Cruz nesoryzomys or Indefatigable Galápagos mouse,Duff and Lawson, 2004 is a rodent of the genus ''Nesoryzomys'' of family Cricetidae from Galápagos Islands of Ecuador. It formerly lived on Santa Cruz Island, but is now extinct, probably due to the introduction of black rat The black rat (''Rattus rattus''), also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus ''Rattus'', in the subfamily Murinae. It likely originated in the Indian subcontinent, but is n ...s. Another related rodent, '' N. narboroughi'', is sometimes considered to be a subspecies of ''N. indefessus''. Etymology Its specific name is Latin for "unwearied, indefatigable", but the species was named after its island, which was formerly known as "Indefatigable Island" after a ship with the same name. References Literature cited *Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. 894 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryzomyini
Oryzomyini is a tribe of rodents in the subfamily Sigmodontinae of the family Cricetidae. It includes about 120 species in about thirty genera,Weksler et al., 2006, table 1 distributed from the eastern United States to the southernmost parts of South America, including many offshore islands. It is part of the clade Oryzomyalia, which includes most of the South American Sigmodontinae. The name ''Oryzomyini'' derives from that of its type genus, ''Oryzomys'', which means "rice rat" or "rice mouse". Many species are also known as rice rats. Taxonomy Contents of Oryzomyini An oryzomyine group was first envisaged by Oldfield Thomas in the early 20th century. He defined it to include pentalophodont species, which have a mesoloph(id) on the upper and lower molars, with a long palate (extending past the third molars). Thomas included ''Oligoryzomys'', '' Oecomys'', and ''Oryzomys'' (which included many species now in other genera), as well as ''Rhagomys'', which is currently classi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegialomys Galapagoensis
The Galápagos rice rat (''Aegialomys galapagoensis''), also known as the Galápagos oryzomys, is a species of rodent that is endemic to the Galápagos Islands. Description The Galapagos rice rat is a medium-sized rodent, with a head-body length of , and a tail long. It has very long, soft and dense fur that is grizzled copper-brown above and yellowish-grey on the underparts. The ears are long and covered with dense hair, and the feet have large pads on the soles, with claws up to in length, suggesting that it has little, if any, climbing ability. Distribution and habitat The Galapagos rice rat is found only in the eastern Galapagos. Today, it occurs only on Santa Fé Island, and possibly on Santiago Island. A separate population formerly existed on San Cristóbal Island, and is considered to represent a separate subspecies, but is thought to have been extinct for many decades. Its natural habitat is subtropical or tropical dry shrubland. Biology and behaviour The Galapagos ... [...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 lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, 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/richochetal (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, guinea pigs, and hamsters. Rabbits, hares, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cricetidae
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has members throughout the Americas, Europe and Asia. Characteristics The cricetids are small mammals, ranging from just in length and in weight in the New World pygmy mouse up to and in the muskrat. The length of their tails varies greatly in relation to their bodies, and they may be either furred or sparsely haired. The fur of most species is brownish in colour, often with a white underbelly, but many other patterns exist, especially in the cricetine and arvicoline subfamilies. Like the Old World mice, cricetids are adapted to a wide range of habitats, from the high Arctic to tropical rainforests and hot deserts. Some are arboreal, with long balancing tails and other adaptations for climbing, while others are semiaquatic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Islands
The Galápagos Islands ( es, Islas Galápagos) are an archipelago of volcanic islands in the Eastern Pacific, located around the Equator west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with a population of slightly over 33,000 (2020). The province is divided into the Cantons of Ecuador, cantons of San Cristóbal Island, San Cristóbal, Santa Cruz Island (Galápagos), Santa Cruz, and Isabela Island (Galápagos), Isabela, the three most populated islands in the chain. The Galápagos are famous for their large number of Endemism, endemic species, which were studied by Charles Darwin in the 1830s and inception of Darwin's theory, inspired his theory of evolution by means of natural selection. All of these islands are protected as part of Ecuador's Galápagos National Park and Galápagos Marine Reserve, Marine Reserve. Thus far, there is no firm evidence that Polynesian expansion, Polynesians or the indigenous peoples of South Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Endemic")
.svg "Click for more on -> Galápagos Islands")