Their territory can be as big as 25 miles wide but is usually about 11 miles. The Eurasian otter is a member of the Mustelid family which includes stoats, minks and pine martens in Ireland. Eurasian otter populations are now recovering in … flashcard set{{course.flashcardSetCoun > 1 ? They are able to cross territorial boundaries without incident, but aggressive behavior will occur if the same gender tries to enter a territory. Get the unbiased info you need to find the right school. Earn Transferable Credit & Get your Degree. At any age they will trot, and gallop, and chase one another in water. These otters are vocal, having basic calls of greeting, alarm and mating, and up to 12 further calls. © copyright 2003-2021 Study.com. The Eurasian otter is a solitary animal with the female rearing the cubs on her own. The Eurasian otter is a solitary animal with the female rearing the cubs on her own. Scat surveys have become the method of choice to monitor species distribution range, abundance and habitat use. This species mostly lives alone, except when a mother has cubs. They are listed as near threatened, but their population in most areas seems to be recovering. The beaver’s broader rodent muzzle is less pointed than the otter’s carnivore muzzle. Though currently believed to be extinct in Liechtenstein and Switzerland, they are now very common in Latvia, along the coast of Norway, in the western regions of Spain and Portugal and across Great Britain, especially Shetland, where 12% of the UK breeding population exists. In addition to being fun, this teaches young otters good hunting skills. The Asian short-clawed otter can be found in freshwater wetlands and mangrove swamps, in southern India to southern China and the Malay Peninsula. It is a European branch of the weasel or Mustelidae family. 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Given its wide range, it is not surprising that this species is only listed as near threatened, which is one of the lower concern ratings for endangered species. for males and about 7 km (4.3 mi.) Log in or sign up to add this lesson to a Custom Course. study European otters live throughout Europe, North Africa and Asia, inhabiting streams, rivers, lakes, freshwater and peat swamp forests, ocean shores, rice fields, fjords, caves, and other terrestrial habitats close by waterways. The Eurasian otter Lutra lutra is a top predator that feeds mostly on fish. All otter species occupy a home range. Weaning takes place when they are 3 months old. Other otter species often use habitats along sea shores that are rather similar to those of the Eurasian. The elusive otter is one of our top predators, feeding mainly on fish (particularly eels and salmonids), waterbirds, amphibians and crustaceans. Currently this species is classified as Near Threatened (NT) and its numbers today are decreasing. Otters are known to be playful creatures, and the Eurasian otter is no exception. They build their nests on land, sometimes by digging tunnels, and sometimes by using existing shelters such as tree roots, caves, and vegetation. The diet of both species has been studied for decades, hence there is a considerable volume of information, especially from inland waters ( Baron et al. They are very vocal, and have up to 15 different calls to stake out territory, warn others that a predator is near, or otherwise communicate. Field surveys in 1998 and 2007 documented increase in occurrence of the species. To unlock this lesson you must be a Study.com Member. Wild Diet. – but our river systems still require extensive habitat In some areas, a female Alaska se… colonizat ion sites is given on the pl ot. It was listed this way because of a population decline, but with current conservation efforts, the population in many countries seems to be recovering. RED LIST status: Near Threatened alias: old world otter, river otter predators: birds of prey, crocodiles, dogs threats: pollution, poaching, habitat loss, accidental trapping, road kill size: 102-138 cm (body 57-70 cm; tail 35-40 cm) weight: 4-11 kg The Eurasian otter is an elusive, solitary otter that has one of the widest distributions of all palearctic mammals, from Ireland to China and … Dry resting sites and covered dens are found in tree roots, earth tunnels, boulder piles, banks and shrubs. The Eurasian otter always lives near water, but the type of water body varies. They will spend several hours nightly foraging in water. Although methodological concerns exist, scat … Quick facts. 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They are typically nocturnal, which means they sleep during the day and are most active at night, though this varies somewhat by country. A male's range often overlaps that of one or more females. Other threats are being caught in nets and fishing traps set for other species, as well as being hunted for their coat. Habitat Along the high-rainfall coasts of Prince William Sound the North American river otter uses many large dens close to the shore As you might expect, given their semiaquatic lifestyle, much of the diet of a Eurasian otter comes from the water. 1993 , Macdonald & Strachan 1999 , Jędrzejewska et al. In most of its range it is nocturnal except in the Shetlands where it is diurnal. Eurasian otters (Lutra lutra) are an extremely widespread semiaquatic mammal. As is the case with many species, Eurasian otters tend to live longer in captivity than in the wild. Assessment consider the Eurasian otter as near threatened (reuther & Hilton ta y l o r 2004, te m p l e & te r r y 2007, 2009, ruiz-olmo et al. According to the IUCN Red List, the overall estimate of the population in the United Kingdom was around 10,395 individuals in 2004. Due to having large lungs and being able to slow down their heartbeat, otters can stay underwater for as long as four minutes. Lutra lutra inhabits most of Eurasia south of the tundra line and North Africa. – but our river systems still require extensive habitat management to restore them to a healthy level that can sustain fish stocks and wildlife. They live near streams, rivers, lakes, swamps, and along coastlines, depending on the country. Although the mating system in European otters has not been well studied, they are thought to be either polygynous (one male mates with multiple females) or polygynandrous (promiscuous) (both males and females have multiple mates), as both males and females associate with each other only during mating. Eurasian otters are indigenous to the UK and can be found in either fresh or salt water, although it’s usually known as the river otter for the obvious reason. In addition, they use vocal and scent communication. In 2018 the first otter survey within the exclusion zone was carried out looking for spraints and other signs of otter presence. ... Habitat. The Eurasian otter, Lutra lutra, is distributed over the Eurasian continent from the Korean Peninsula in East Asia to the Iberian Peninsula in Western Europe and is capable of occupying environments from tundra to tropical rainforest (Mason and Macdonald 1986). 3 Habitat char acteristic s of Eurasian otter sit es in Central Polan d. Result of the permut ation tests com paring habita t features of prese nce and. And search more of iStock's library of royalty-free stock images that features Agricultural Field photos available for quick and easy download. Written by Jeniffer Coates. Otters are semi-aquatic animals eating fish, frogs, crabs, small birds and mammals. Services. Otters are playful, and they use play to learn good hunting skills. Although the Korean population of Eurasian otter (Lutra lutra) was designated as an endangered species, habitat and basic ecology of Korean otters have been rarely known.To ascertain sprainting behavior of the Eurasian otter in the freshwater habitat and investigate the habitat preferences, otter surveys along the Ungok River in Gyeongsangbuk-do, South Korea, were conducted for a 12 … They make use of freshwater and peat swamp forests, rice fields, lakes, streams, reservoirs, canals, drainage ditches, rice paddies, mangroves, tidal pools, and along the coastline. During the day they are in their dens on the land, staying cool, coming out at night to eat. They will stay with her for a little over a year, and they can mate and have babies of their own after they are two to three years old. 's' : ''}}. Although widespread in distribution, there is almost no data on populations outside Europe so the situation in the vast part of their range is unknown. 2008), this animal is still considered a critically endangered species in italy (B u l g a r i n i et al. Log in here for access. Otters are found on every single continent in the world except for Australia and Antarctica. They also have very strong scent glands, and they use smell to mark their territory or let other otters know who they are, or that they are ready to mate. The European otter has a wide distribution but no overall population estimate is available. The Eurasian Otter has an acute sense of sight, smell and hearing. Eurasian otter, Eurasian River otter, European river otter, Old World otter, Common otter. Lauren has taught intermediate reading in an English Language Institute, and she has her Master's degree in Linguistics. Sociology 110: Cultural Studies & Diversity in the U.S. CPA Subtest IV - Regulation (REG): Study Guide & Practice, Properties & Trends in The Periodic Table, Solutions, Solubility & Colligative Properties, Electrochemistry, Redox Reactions & The Activity Series, Distance Learning Considerations for English Language Learner (ELL) Students, Roles & Responsibilities of Teachers in Distance Learning. They can make short, shrill whistles, whimpers, yelps and high-pitched screaming when distressed. You can test out of the 1995), often under stands of old-growth forest including tall hemlocks (Tsuga heterophylla). This has steadied and the decline is not as drastic as it was over the last 23 years. Along sea shores that are rather similar to those of the most s… Eurasian! 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