Fig. 3

The relationship between survey year and the number of Myotis lucifugus hibernating at a The Williams Preserve Mine, and b Hailes Cave. The line drawn through each set of points represents the least squares linear regression
The relationship between survey year and the number of Myotis lucifugus hibernating at a The Williams Preserve Mine, and b Hailes Cave. The line drawn through each set of points represents the least squares linear regression