Lutra

Lutra
Lutra lutra
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Subfamily: Lutrinae
Genus: Lutra
Species
Lutra ranges

Lutra is a genus of otters.

Contents

Habitat

Lutra are semi-aquatic mammals and therefore need to be well-adapted to both water and land. They prefer shallow, narrow areas of streams surrounded by mature trees and with rocks, especially where weirs reduced the flow of the water as well as attracted fishes. They seem to tolerate roads, residential and agricultural areas, but only moderate human interaction. They clearly avoid areas without vegetation cover and rocks. [1]

Diet

The otter's diet consists mainly of fish (Hence, the aquatic environment). However, during the winter and in colder environments fish consumption is significantly lower and the otters use other resources for their food supply. Their diet can consist of amphibians (mainly frogs and pond turtle), bird predation (mainly anserine species), small rodents, and invertebrates like water beetles, snails and crayfish. They have also fed on plants, specifically grasses. Its with this large diversity of prey and resources for their diet, that otters are considered "opportunistic eaters".[2]

Behavior

Otters most commonly live in solitude (by themselves, and away from other otters).

References

  1. ^ Cho, H-S et al. Characterizing habitat preference of Eurasian river otter (Lutra lutra) in streams using a self-organizing map. Limnology 2009 Vol 10: 203-213
  2. ^ Lanszki, József, M. Molnár, and T. Molnár. "Factors affecting the predation of otter ( Lutra lutra) on European pond turtle ( Emys orbicularis)." Journal of Zoology 270.2 (2006): 219-226