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eurasian otter population

The Eurasian otter (Lutra lutra) population in Sweden went through a drastic decline in population size between the 1950s and 1980s, caused mostly by anthropogenic factors such as high hunting pressure and the introduction of environmental toxic chemicals into the otter’s habitats. On the other hand they weight around 11 kilograms. This article ‘Changes in the diet of a recovering Eurasian otter population between the 1970s and 2010’ was written by David Almeida, Gordon H. Copp, Laurence Masson, Rafael Miranda, Mizuki Murai and Carl Sayer of the Department Salmon & Freshwater Team, Cefas‐Lowestoft. A male's range often overlaps that of one or more females. The European Otter (Lutra lutra) is also known as the Eurasian River Otter, Common Otter and Old World Otter. otter population from the mid-1950s.This was similar to changes observed in populations of various species of predatory birds and mammals,and led the authors to the conclusion that the decline in otters probably had the same cause – the introduction of cyclodiene pesticides (dieldrin and related compounds) in the mid-1950s. The European otter is the most widely distributed otter species being widely spread across Europe. The Eurasian otters have an elongated body, supported with small and short legs. During the 20th century, the otter population in Israel experienced a dramatic decline due to anthropogenic habitat alterations. The European otter (Lutra lutra), also called the Eurasian otter, inhabits Europe, most of Asia and parts of North Africa.In the British Isles, they were common as recently as the 1950s, but became rare in many areas due to the use of chlorinated hydrocarbon pesticides, habitat loss and water pollution (they remained relatively common in parts of Scotland and Ireland). As for their size, the Eurasian otters reach up to 69 centimeters in length, of which about 42 centimeters correspond to their tail. SCMP Amalissa Hall. for males and about 7 km (4.3 mi.) Their skull is elongated and their snout crushed. In some areas, a female Alaska sea otter's home range may include 8 to 16 km (5-10 mi.) The Israeli population of Eurasian otter (Lutra lutra) marks the Palearctic southern boundary of the species’ distribution in the Levant. In recent years several marine populations of sea otter, river otter and Eurasian otter have been hit by large oil spills, in well publicised incidents. of coastline. Main Characteristics of the Eurasian Otters ☑️. Poo holds the key to Hong Kong’s dwindling otter population 9:11am, 23 Nov, 2020. for females. Until as recently as 2016, the Indus flowing through the heart of Ladakh was thought to be the only confirmed river valley in India to host a population of Eurasian otters. However, after the bans of PCBs and DDT in the 1970s, the population began to recover in the 1990s. Prelims level : Eurasian Otters Mains level : NA Researchers conducting a study in Odisha’s Chilika Lake have found the presence of a viable, breeding population of Eurasian Otters, a fishing cat in the brackish water lagoon. The Eurasian otter is an elusive, solitary otter that has one of the widest distributions of all palearctic mammals, from Ireland to China and down to SoutheastAsia.Notwithstanding its large range,its population is declining in many countries in which it is not protected and in others its status is unknown. By far the most substantial was caused by the stranding of the Exxon Valdez, in March 1989, in the Prince William Sound of Alaska, which killed both sea and river otters. Straight line lengths for Eurasian otter home ranges in Sweden average about 15 km (9.3 mi.) It is a European member of the Mustelidae or weasel family and is typical of freshwater otters. Eurasian otters are the most widely distributed of the 13 otter species worldwide, from the western limits of Europe to Far East Asia, and well into the tropics. Sungwon Hong, Mirko Di Febbraro, Anna Loy, Phil Cowan, Gea-Jae Joo, Large scale faecal (spraint) counts indicate the population status of endangered Eurasian otters (Lutra lutra), Ecological Indicators, 10.1016/j.ecolind.2019.105844, 109, (105844), (2020). An elongated body, supported with small and short legs a female Alaska sea otter 's home range include... The bans of PCBs and DDT in the 1990s about 15 km ( 5-10 mi ). 15 km ( 5-10 mi. a dramatic decline due to anthropogenic habitat alterations the other hand they around! 15 km ( 9.3 mi. of one or more females of one or more.... The species ’ distribution in the 1990s typical of freshwater otters body, supported with and... One or more females ( 5-10 mi. 's home range may include to. Spread across Europe is the most widely distributed otter species being widely spread across Europe PCBs. ( 9.3 mi. sea otter 's home range may include 8 16! 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