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In Chile, between latitudes 39"s and 43"30'S, southern river otter (Lutru provocax) and introduced mink (Mustela vison) scats were collected. Mink sign was recorded in 29% of the aquatic habitat where otter sign was found. Sixty-eight per cent of mink scats were collected at otter rest sites. A significant difference between the diets and low percentage of habitat use overlap of the two species (5-22%) suggest that, in Chile, river otter and mink coexist with little competition for space or food. There are no data supporting a relationship between the introduction of mink and the decline of southern river otters.




Medina, G. (1997). A comparison of the diet and distribution of southern river otter (Lutra provocax) and mink (Mustela vison) in in Southern Chile. Journal of Zoology, London, 242, 291–297. https://doi.org/10.1111/j.1469-7998.1997.tb05802.x

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