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First published online November 30, 2007
Journal of Experimental Biology 210, 4345-4350 (2007)
Published by The Company of Biologists 2007
doi: 10.1242/jeb.007294
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Energy availability influences microclimate selection of hibernating bats

Justin G. Boyles1,*, Miranda B. Dunbar2, Jonathan J. Storm3 and Virgil Brack, Jr1

1 Center for North American Bat Research and Conservation, Department of Ecology and Organismal Biology, Indiana State University, Terre Haute, IN 47809, USA
2 Department of Biology, University of Regina, Saskatchewan, S4S 0A2, Canada
3 Department of Ecology and Organismal Biology, Indiana State University, Terre Haute, IN 47809, USA


Figure 1
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  		Fig. 1. Thermal gradient apparatus used to test the thermal preference of hibernating big brown bats, Eptesicus fuscus.

 

Figure 2
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  		Fig. 2. Body mass of little brown myotis, Myotis lucifugus, in an abandoned limestone mine in western Ohio on three dates during winter 2006–2007. Each pair of box-plots represents the mass of bats weighed in two sections of the mine, a cold section near the front of the mine (C) and a warmer section deeper in the mine (W). Sample sizes are under the box-plot. In all samples, bats from the warmer section were larger than those from the colder section. Significance level of one-tailed t-tests indicated by: *P<0.05; **P<0.01.

 




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