All of this information is transferred to a database to calculate the density of nutria across the Louisiana coast, and the LDWF combines these data with the results from the aerial surveys to determine the number of nutria remaining in the marshes and the amount of damage they are inflicting on the ecosystem. The genus name Myocastor derives from the two Ancient Greek words μῦς (mûs), meaning "rat, mouse", and κάστωρ (kástōr), meaning "beaver". In Italy, instead, the popular name is, as in North America and Asia, "nutria", but it is also called castorino ("little beaver"), by which its fur is known in Italy. National Wetlands Research Center (June 2000), Carter, Jacoby, and Billy P. Leonard (2002). Genus-level cladogram of the Myocastorini. The first attempt at coypu farming was in France in the early 1880s, but it was not much of a success. Coypu Living here in France there are a number of wild animals here that we just don't see in the UK. Cage trapping followed by humane killing would seem to be the best approach provided the traps are regularly visited as per the regulations. [36] The LDWF has determined the wetlands affected by nutria decreased from an estimated 80,000+ acres of Louisiana wetlands in 2002–2003 season to about 6,296 acres during the 2010–2011 season. The ragondin lives near freshwater, and often causes flooding and blocks water courses by his activities. Origin and Worldwide Distribution: The coypu is a large rodent from South America. In spite of being a separate species, the animal is sometimes mistaken for a beaver or otter. ", "Louisiana is losing a football field of wetlands an hour, new U.S. Geological Survey study says", "Jefferson Parish Sheriff Harry Lee dies", "Monitoring Plan: Project No. [50] The condition is also called "nutria itch". French Translation of “coypu” | The official Collins English-French Dictionary online. [71], The first records of nutria invading California dates from the 1940s and 50s, when it was found in the agriculture-rich Central Valley and the south coast of the state, but by the 1970s the animals had been extirpated statewide. 1 (Spring, 2002), pp. These highly productive animals mate at any time of year. It also is expensive to operate - an estimated $6 million annually to drop bait laced with birth-control chemicals. The quality of the meat and the minimal harmful microorganisms associated with it make nutria meat an "excellent food product for export markets". All Years Hence ragondins are usually trapped, poisoned or shot if found in France. The first farms were in Argentina and then later in Europe, North America, and Asia. [36][37] They either construct their own burrows, or occupy burrows abandoned by beaver, muskrats, or other animals. Rodent burger now the latest food craze in Moscow", "Strongyloidiasis: Background, Pathophysiology, Etiology", Report on Nutria Management and Research in the Pacific Northwest, "History; Nutria Population Dynamics – A Timeline", "WISC - Washington Invasive Species Council - Nutria", "How do Wetlands Function and Why are they Valuable? A chap called Pays-Mellier makes the first reference to ragondins in France in a paper he wrote for the Bulletin de la Société Nationale d’Acclimiatation de la France. Although coypu populations were greatly reduced after the 1962-1965 campaign ended, the population increased until another eradication campaign began in 1981. In addition, coypus destroy nests and collect eggs of some aquatic birds, including these of endangered species. [60] Many coastal restoration projects involve planting vegetation to stabilize marshland, but this requires proper nutria control to be successful. Coypu . Fish and Wildlife Service determined wetlands covered only 5% of the land surface of the contiguous 48 United States, but they support 31% of the nation's plant species. Coypus are active during the nighttime hours, when they play and socialize with conspecifics. Neither of these control methods is likely to be used in the near future. Coypu, otherwise known as Nutria or River rat, is a large, semi-aquatic rodent. Following escapes and deliberate releases in the 1930’s when demand fell in the global depression they have spread to most regions of France. Modeling the effects of nutria (Myocastor coypus) on wetland loss. Under the Coastwide Nutria Control Program, which also receives funds from CWPPRA, 308,160 nutria were harvested the first year (2002–2003), revealing 82,080 acres damaged and totaling $1,232,640 in incentive payments paid out to those legally participating in the program. [51], Native to subtropical and temperate South America, it has since been introduced to North America, Europe, Asia, and Africa, primarily by fur ranchers. [35], Coypus are found most commonly in freshwater marshes, but also inhabit brackish marshes and rarely salt marshes. If your tests are littered with sleeps, retries, complex XPath expressions and IDs dug out of the source with browser developer tools then Coypu might help. The destruction of these plants will also remove valuable sites for the birds and insects that depend upon them either for nesting, important forage or cover, and of course there is the considerable loss of some plant species. [31] " Unlike other common disturbances in marshlands, such as fire and tropical storms, which are a once- or few-times-a-year occurrence, nutria feed year round, so their effects on the marsh are constant. These herbivorous animals mainly feed upon stems, leaves, roots, bark and other aquatic vegetation, supplementing their diet with floating objects such as logs. Preferred habitats include marshes, lake edges and sluggish streams. Scientifically the water rat in North America is known as Myocastor coypu var. These activities cause their unpopularity with farmers. Four subspecies are generally recognized:[17], M. c. bonariensis, the subspecies present in the northernmost (subtropical) part of the coypu's range, is believed to be the type of coypu most commonly introduced to other continents.[16]. Other potential chemical pesticides would be required by the US Environmental Protection Agency to undergo vigorous testing before they could be acceptable to use on nutria. As a result, populations of coypus often contract and even become locally or regionally extinct as in the Scandinavian countries and such US states as Idaho, Montana, and Nebraska during the 1980s. [30][31] Being one of the world's larger extant rodents, a mature, healthy coypu averages 5.4 kg (11 lb 14 oz) in weight, but they can reach as much as 10 kg (22 lb). The Coypu The Coypu Myocastor coypus is a large semi aquatic rodent that is originally native to South America but was introduced to Europe in the last century as a result of the fur trade. [45], Marsh Dog, a US company based in Baton Rouge, Louisiana, received a grant from the Barataria-Terrebonne National Estuary Program to establish a company that uses nutria meat for dog food products. The coypu in France, Europe looks like a large rat and can grow to be 10-20 pounds in weight, 15-24 inches long and 12-18 inches tall. They also build a large subterranean den, which can undermine the surrounding land and damage the ditches and streams where they live. [30], Besides breeding quickly, each coypu consumes large amounts of vegetation. Officials have a $1.9-million plan to rid state marshlands of giant rodents", "California pledges millions to battle enormous, destructive swamp rats", Chesapeake Bay Nutria Eradication Project, United States National Agricultural Library,, Short description is different from Wikidata, Articles with unsourced statements from January 2012, Creative Commons Attribution-ShareAlike License. It can also be mistaken for a small beaver, as beavers and coypus have very similar anatomies. In Dutch, it is known as beverrat (beaver rat). Native to South America, this species occurs from middle Bolivia and southern Brazil to Tierra del Fuego. In France, Coypu is known as ‘ragondin’. THE INNOCENTS AT HOME (A SUPERINTENDENT KENWORTHY NOVEL). The coypu was once only native to South America but is now found in Europe, Asia and North America where it has adapted to subtropical and mild temperature climates.

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