Keen's myotis

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Keen's myotis
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Genus: Myotis
Species:
M. keenii
Binomial name
Myotis keenii
(Merriam, 1895)
Myotis keenii distribution.png

Keen's myotis (Myotis keenii) is a species of vesper bat. It is found in British Columbia in Canada and in Washington and Alaska in the United States.[1] It is named after the Rev. John Henry Keen, who collected the specimen that formed the basis for the first scientific description of the species.[2] Classification for Keen's myotis formerly included the Northern long-eared Myotis (Myotis septentrionalis), resulting in older studies confusing the species for one another.[3]

Description[edit]

Measurements: Forearm 1.4-1.6 in., WT 0.25-0.33 oz (7-9 g). Average body length 8–9 cm, tail length 4–5 cm.[4] In appearance, Keen's myotis is very similar to other long-eared bats of the same range, with characteristic dark brown patches on the shoulders.[5]

Behavior[edit]

Keen's myotis prefers coastal habitats, but is often found in urban areas as well. It frequently roosts in trees and rock crevices.[6] It is nocturnal and insectivorous.[5] Keen's Myotis probably exhibits the same breeding habits of other temperate vespertilionids, but there is little data available.[7]

Lifespan[edit]

In the wild, Keen's myotis is recorded living upwards of 12 years,[8] while in captivity, it is reported living 19 years.[7]

See also[edit]

References[edit]

  1. ^ a b Arroyo-Cabrales, J. & Ticul Alvarez Castaneda, S. (2008). "Myotis keenii". IUCN Red List of Threatened Species. Version 2009.2. International Union for Conservation of Nature. Retrieved 8 February 2010.
  2. ^ "Keen's myotis". State University of New York College of Environmental Science and Forestry. Retrieved 7 November 2010.
  3. ^ [1] Arroyo-Cabrales, J.; Álvarez-Castañeda, S.T. (2008). "Myotis keenii". IUCN Red List of Threatened Species. Version 2014.3. International Union for Conservation of Nature and Natural Resources. Retrieved 30 November 2014.
  4. ^ "Mammals of Washington". Burke Museum. University of Washington. Retrieved 9 Dec 2014.
  5. ^ a b "Myotis Keenii". NatureServe Explorer. NatureServe. Retrieved 9 December 2014.
  6. ^ "COSEWIC Assessment and Update Report on the Keen's Long-eared Bat Myotis Keenii in Canada" (PDF). Sera Registry. COSEWIC. 2003. p. iv. Retrieved 9 December 2014.
  7. ^ a b Filla, Joe. "Myotis Keenii". Animal Diversity Web. University of Michigan Museum of Zoology. Retrieved 9 December 2014.
  8. ^ "COSEWIC Assessment and Update Report on the Keen's Long-eared Bat Myotis Keenii in Canada" (PDF). Sera Registry. COSEWIC. 2003. p. v. Retrieved 9 December 2014.

External links[edit]