Whitefoot mice

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Whitefoot mice
White footed mouse (Peromyscus sp.)

White footed mouse ( Peromyscus sp. )

Systematics
Subordination : Mouse relatives (Myomorpha)
Superfamily : Mice-like (Muroidea)
Family : Burrowers (Cricetidae)
Subfamily : Neotominae
Tribe : Reithrodontomyini
Genre : Whitefoot mice
Scientific name
Peromyscus
Gloger , 1841
Deer vole ( Peromyscus maniculatus )

The Peromyscus or Hirsch mice ( Peromyscus ) are a diverse, in North and Central America living rodent species from the group of New world . They include around 60 species.

features

White-footed mice reach a head body length of 7 to 17 centimeters, plus a 4 to 21 centimeter long tail. The weight varies from 15 grams in some species in the north of the range up to 110 grams. The fur is usually golden yellow, gray or brownish on the upper side, the underside is white. However, there are also species that are almost completely whitish or blackish. The ears are large and covered with fine hair, the tail is hairy and often ends in a tassel.

distribution and habitat

The distribution area of ​​the whitefoot mice extends from southern Alaska over Canada , the contiguous state of the USA and Mexico to Panama . They occur in a wide variety of habitats, from mountainous regions to forests and grasslands to desert areas.

Way of life

White-footed mice are often found in large numbers and are among the most common mammals in the areas they inhabit. They are predominantly nocturnal. Some species create nests of grass and other plant material as resting places, while other species retreat into crevices or other shelters. Many species are social and live in families or other small groups.

Their diet consists of seeds, nuts, fruits, insects and other invertebrates, as well as carrion.

Reproduction

Female white footed mouse with young animals

If the climate is not too cold or too hot, reproduction can occur year round. After a gestation period of around 21 to 27 days, the female gives birth to an average of 3.4 (1 to 9) young animals. These open their eyes at two weeks and are weaned at three to four weeks. Sexual maturity can occur between 30 and 50 days. They are very fertile animals, in the laboratory a female can have 14 litters a year.

Most animals in the wild do not live to be 2 years old; in human care they are over 8 years old.

Whitefoot mice and humans

Whitefoot mice are easy to breed and are therefore often used in animal experiments . While the North American species are often widespread and common, many Central American species only inhabit small areas or only small islands and are therefore endangered. The Pemberton deer mouse ( P. pembertoni ), the Chadwick Beach Cotton Mouse ( P. gossypinus restrictus ) and the giant deer mouse ( P. nesodytes ). are extinct, some others are threatened or endangered.

White-footed mice can transmit some potentially life-threatening pathogens to humans, on the one hand hantaviruses , on the other hand they serve as intermediate hosts for the causative agents of Ehrlichiosis , Babesiosis and Borreliosis , which are transmitted to humans via ticks.

Systematics

A total of around 60 species of white-footed mice can be distinguished:

Sometimes the isthmus rats ( Isthmomys ), the Thomas deer mice ( Megadontomys ), Habromys and the Michoacán deer mouse ( Osgoodomys ) are incorporated into this genus.

literature

  • John A. King : Biology of Peromyscus (Rodentia). The American Society of Mammalogists, Special Publication, No. 2, 1968, full text
  • Ronald M. Nowak: Walker's Mammals of the World. 2 volumes. 6th edition. Johns Hopkins University Press, Baltimore MD et al. 1999, ISBN 0-8018-5789-9 .
  • Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. 2 volumes. 3. Edition. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .

Individual evidence

  1. Consuelo Lorenzo; Sergio T. Álvarez-Castañeda; Sergio G. Pérez-Consuegra; James L. Patton (2016). Revision of the Chiapan deer mouse, Peromyscus zarhynchus , with the description of a new species. Journal of Mammalogy. 97 (3): 910-918. doi: 10.1093 / jmammal / gyw018
  2. a b c Celia López-González; Diego F. García-Mendoza; Juan Carlos López-Vidal; Cynthia Elizalde-Arellano (2019). Multiple lines of evidence reveal a composite of species in the plateau mouse, Peromyscus melanophrys (Rodentia, Cricetidae. Journal of Mammalogy. 100 (5): 1583–1598. Doi: 10.1093 / jmammal / gyz106

Web links

Commons : White-footed mice ( Peromyscus )  - Collection of images, videos and audio files