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PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Series 4, Volume 65, Supplement I 
higher over streams and ponds than within forest stands (Thomas, 1988). In ponderosa pine forests 
of the eastern Cascade Mountains in south-central Washington, however, these bats were the sec¬ 
ond most abundant of 11 species (164 of 1,057 individuals) captured over water (Baker and Lacki, 
2004). This species ranked sixth in relative abundance (18 individuals) among 12 species and 958 
bats captured over water in the semi-arid Okanagan Valley of southern British Columbia 
(Woodsworth, 1981). Long-legged myotis ranked third in relative abundance (44 captures) in the 
same region during an earlier study where 351 bats of nine species were taken in nets or traps over 
or near water (Fenton et al., 1980). 
Montana and Idaho: Long-legged myotis were described as the third most common bat and 
the most common species of Myotis among 205 bats netted or shot in the Long Pine Hills and 
Ekalaka Hills of southeastern Montana, and they were taken over water at beaver ponds and in 
nearby ponderosa pine forest at elevations of 1,036-1,158 meters (Jones et al., 1973). They ranked 
seventh in relative abundance among nin e species (seven of 231 individuals) of bats captured over 
water in the Pryor Mountains of south-central Montana (Worthington, 1991). Long-legged myotis 
also were often captured in forests of multiple types in northern Idaho (ranking most abundant, 
with 68 of 187 bats of eight species sampled for fecal analysis; Lacki et al., 2007). 
Alaska: Long-legged myotis were of low relative abundance at the northern periphery of their 
range in southeastern Alaska south of 59° N latitude, where only three specimens were known 
through 1995 (Parker et al., 1997). Mist-net surveys in western hemlock, western hemlock-Sitka 
spruce (Picea sitchensis), and mixed coniferous forests of southeastern Alaska during 2005 and 
2006 resulted in captures of ten individuals (including reproductive females), ranking them least in 
relative abundance among 226 bats of four species documented by capture (with all ten captures 
on Prince of Wales and Wrangell Islands; Boland et al., 2009). 
California and Nevada: In the San Gabriel Mountains of southern California, natural history 
observations and collecting without mist nets revealed the presence of long-legged myotis across 
a variety of habitats including chaparral, sagebrush flats, ponderosa pine forest (where they were 
perceived to be most numerous), and the upper limits of Joshua tree (Yucca brevifolia ) woodlands 
(Vaughan, 1954). Relative abundances of long-legged myotis were often low during later mist net 
surveys in California. They ranked sixth among ten species in relative abundance (15 captures out 
of 284 individuals) in a mist-net survey both over water and within forests (concentrating on groves 
of giant sequoia trees, Sequoiadendron giganteum) in Yosemite National Park in the California 
Sierra Nevada Range during 2001 (Pierson et al., 2006). Long-legged myotis ranked fourteenth of 
17 species (three individuals among 390 bats) captured in mist nets at 19 sites in the Sierra Nevada 
mountain range of California during 1993-1999 (Pierson et al., 2001). They were also rarely taken 
in mist nets set over water in montane hardwood/conifer habitats along the upper Sacramento River 
in northern California (Siskiyou and Shasta counties), ranking thirteenth with just two long-legged 
myotis captured among 1,398 individuals of 15 species documented during 1991-1995 (Pierson et 
al., 1996b). This species was rarely taken at night roosts under bridges in the latter study area, 
where just 14 were captured in comparison with 2,132 individuals of nine other species (ranking 
fifth in relative abundance; Pierson et al., 1996b). They were not reported among 403 bats of 10 
species documented in mist-netting surveys in Whiskeytown National Recreation Area in Shasta 
County, California, where 47 sites between 256 and 1,899 meters elevation were sampled in a vari¬ 
ety of habitats, ranging from chaparral to Douglas fir forests (Duff and Morrell, 2007). A survey 
based on mist netting over water in old growth redwood forest in the Coast Range of northern Cal¬ 
ifornia resulted in only one individual among 142 bats of seven species (Zielinski and Gellman, 
1999). 
In eastern Nevada, long-legged myotis were the most abundant and widespread of twelve 
species of bats (186 among 578 individuals) captured by mist netting over water and captures at 
