Ecology

Habitat

Depth range based on 75 specimens in 2 taxa.

Environmental ranges
  Depth range (m): 0 - 0
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:6Public Records:3
Specimens with Sequences:5Public Species:1
Specimens with Barcodes:5Public BINs:1
Species:1         
Species With Barcodes:1         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Lutra

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Wikipedia

Lutra

Lutra is a genus of otters. It is one of seven in the subfamily Lutrinae.

Taxonomy and evolution[edit]

The genus includes the following living species:

The genus most likely evolved in Asia during the late Pliocene epoch;[1] the oldest fossil belonging to the genus is of the species Lutra palaeindica, and dates from the late Pliocene.[2]

Habitat[edit]

Lutra species are semiaquatic mammals, so are well-adapted to both water and land. They prefer shallow, narrow areas of streams surrounded by mature trees and with rocks, especially where weirs reduce the flow of the water, as well as attract fishes. They seem to tolerate roads, residential and agricultural areas, but only moderate human interaction. They clearly avoid areas without vegetation cover and rocks.[3]

Diet[edit]

The otters' diets consist 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 diets can consist of amphibians (mainly frogs and pond turtles), bird predation (mainly anserine species), small rodents, and invertebrates such as water beetles, snails and crayfish. They have also feed on plants, specifically grasses. With this large diversity of prey and resources for their diets, otters are considered "opportunistic eaters".[4]

Behavior[edit]

Some otters live in solitude (away from other otters), while others live in groups.

References[edit]

  1. ^ Koepfli, K-P., et al. (2008). "Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation". BMC Biology 6 (10). doi:10.1186/1741-7007-6-10. 
  2. ^ Larivière, S. (2002). "Lutra maculicollis". Mammalian Species: Number 712: pp. 1–6. doi:10.1644/1545-1410(2002)712<0001:LM>2.0.CO;2. 
  3. ^ Cho, Hee-Sun; Choi, Kwang-Hee; Lee, Sang-Don; Park, Young-Seuk (2009). "Characterizing habitat preference of Eurasian river otter (Lutra lutra) in streams using a self-organizing map". Limnology 10 (3): 203. doi:10.1007/s10201-009-0275-7. 
  4. ^ Lanszki, József, Molnár, M. and Molnár, T. (2006). "Factors affecting the predation of otter (Lutra lutra) on European pond turtle (Emys orbicularis)". Journal of Zoology 270 (2): 219. doi:10.1111/j.1469-7998.2006.00132.x. 
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