Species: Peromyscus keeni

Northwestern Deermouse
Species
    Kingdom
    Animalia
    Phylum
    Craniata
    Class

    Mammalia

    Order

    Rodentia

    Family

    Cricetidae

    Genus

    Peromyscus

    Classification
    Other Global Common Names
    Keen's Mouse - souris de Keen
    Informal Taxonomy
    Animals, Vertebrates - Mammals - Rodents
    Formal Taxonomy
    Animalia - Craniata - Mammalia - Rodentia - Cricetidae - Peromyscus - Further taxonomic study is needed.
    Short General Description
    A mouse.
    Migration
    true - false - false
    Non-migrant
    true
    Locally Migrant
    false
    Food Comments
    Diet includes various seeds, fruits, and small invertebrates.
    Reproduction Comments
    Multiple litters of about 3-5 young probably are produced each year. Gestation lasts about 23 days (nonlactating) or 25 days (lactating) (Kirkland and Layne 1989). Probably capable of breeding at about 5-6 weeks. In southern British Columbia, "OREAS" was reported as breeding from March through July; 21 litters averaged 6.1 young (see Kirkland and Layne 1989).
    Ecology Comments
    Distribution of "SITKENSIS" on smaller outer islands indicates it is probably less competitive than MANICULATUS, which occupies larger islands (Banfield 1974). "SITKENSIS" probably originally reached many islands on natural rafts.
    Length
    23
    Weight
    45
    NatureServe Global Status Rank
    G5
    Global Status Last Reviewed
    2005-03-01
    Global Status Last Changed
    1996-08-30
    Other Status

    LC - Least concern

    Conservation Status Map
    <img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S5&CA.YT=S4&US.AK=S4&US.WA=S4" alt="Conservation Status Map" style="width: 475px; height: auto;" />
    Global Range
    CE - 250-20,000 square km (about 100-8000 square miles) - CDE - "Washington north to southern Alaska, and west of the Coastal and Cascade mountain ranges, including the Queen Charlotte Islands and islands along the coast of British Columbia and the Alexander Archipelago. Occurs sympatrically with <i>Peromyscus maniculatus austerus</i> in the southern portion of this distribution as well as Balaclava, Malcolm, and Vancouver islands, British Columbia" (Hogan et al. 1993). <i>Peromyscus keeni</i> also occurs in Yukon Territory and occurs farther inland in British Columbia than previously documented (Lucid and Cook 2004).<br><br>Included are the ranges of the following nominal <i>Peromyscus maniculatus</i> and <i>P. sitkensis</i> taxa of Hall (1981): <i>oreas</i>, <i>interdictus</i>, <i>isolatus</i>, <i>sitkensis</i>, <i>oceanicus</i>, <i>algidus</i>, <i>hylaeus</i>, <i>keeni</i>, <i>macrorhinus</i>, and <i>prevostensis </i>(<i>carli</i>, <i>doylei</i>, and <i>triangularis </i>probably also should be included) (Hogan et al. 1993).<br><br>Former species "<i>P. sitkensis</i>" occurs only on several smaller outer islands of the Alexander Archipelago off southern coast of Alaska; <i>Peromyscus </i>populations on the Queen Charlotte Islands of British Columbia were identified as <i>P. sitkensis</i> by Thomas (1973), as <i>P. oreas</i> by Gunn and Greenbaum (1986). <br><br>Former species "<i>P. oreas</i>" occurs in western Washington and southwestern British Columbia (see Allard et al. [1987] for localities); exact range is uncertain due to current difficulties in allocating certain island populations to a particular species (Carleton 1989).<br><br><i>Peromyscus keeni</i> is sympatric with <i>Peromyscus maniculatus</i> throughout the Olympic Peninsula and the Puget Sound region and along the Pacific coast west of the Coast and Cascade ranges (subspecies <i>oreas</i>); also occurs on northern and western Vancouver Island (subspecies <i>interdictus</i>) and small islands in the Queen Charlotte Strait (subspecies <i>isolatus</i>) (identified as <i>P. sitkensis</i> by Thomas 1973).
    Global Range Code
    CE
    Global Range Description
    250-20,000 square km (about 100-8000 square miles)
    ELEMENT_GLOBAL.2.100124