Species: Myotis ciliolabrum
Western Small-footed Myotis
Species
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Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Mammalia
Order
Chiroptera
Family
Vespertilionidae
Genus
Myotis
NatureServe
Classification
Other Global Common Names
chauve-souris pygmée de l'Ouest - vespertilion pygmée de l'Ouest - western small-footed bat
Informal Taxonomy
Animals, Vertebrates - Mammals - Bats
Formal Taxonomy
Animalia - Craniata - Mammalia - Chiroptera - Vespertilionidae - Myotis - ).
Ecology and Life History
Short General Description
A small bat (small-footed myotis)
Migration
false - false - false - Believed to hibernate within summer range over most of North American range; possibly migratory in Texas (recorded only spring-summer) (Schmidly 1991).
Non-migrant
false
Locally Migrant
false
Food Comments
Appears to feed on a variety of small insects. In Oregon, fed primarily on Lepidoptera, Hemiptera, and Diptera; in British Columbia, fed mainly on Trichoptera. Forages along cliffs and rocky slopes at heights of 1-3 m.
Reproduction Comments
Little information is available (van Zyll de Jong 1985). Observations of pregnant and lactating females indicate that parturition occurs from late June through early July; late May to early July according to Schmidly (1991). In the U.S., females produce one, sometimes two, young. Maternity colonies are small: in southern Alberta eight maternity groups ranged in size from 2-6, mean 4 (Holloway 1998); in South Dakota, 10 of 12 roosts had only one bat (Tuttle and Heaney 1974).
Ecology Comments
Sympatric with M. CALIFORNICUS; appears to coexist by spatial partitioning of the available food source. Prefers to hunt over rocks, instead of water like M. CALIFORNICUS.
Length
9
Weight
5
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1998-08-04
Global Status Last Changed
1998-08-04
Other Status
LC - Least concern
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=S2&CA.BC=S2&CA.SK=S3&US.AZ=S3&US.CA=S2&US.CO=S4&US.ID=S4&US.KS=S2&US.MT=S4&US.NN=S5&US.NE=S4&US.NV=S3&US.NM=S5&US.ND=SU&US.OK=S2&US.OR=S3&US.SD=S5&US.TX=S3&US.UT=S3&US.WA=S4&US.WY=S3" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
H - >2,500,000 square km (greater than 1,000,000 square miles) - H - Range includes western North America from southern Saskatchewan, southern Alberta, and southern British Columbia south through the western United States (west of the 100th meridian but not including coastal areas north of southern California) into central Mexico (Holloway and Barclay 2001, Western Bat Working Group 1998, Bat Conservation International 1998, Adams 2003, Reid 2006). Elevational range extends to at least 2,743 meters in Colorado (Adams 2003).
Global Range Code
H
Global Range Description
>2,500,000 square km (greater than 1,000,000 square miles)