Table of Contents 



INTRODUCTION 1 



METHODS 1 



RESULTS 2 



Mine habitat features 2 



Mine temperature and relative humidity 2 



Bat use of mines 8 



DISCUSSION AND RECOMMENDATIONS 9 



Roost environments 9 



Management implications 11 



LITERATURE CITED 12 



APPENDIX I . Continuous temperature and relative humidity profiles fornine mines 15 



FIGURES AND TABLES 



Figure 1. Mapofmine sites 3 



Figiire 2. Mean temperature decreases with increased elevation in winter. 6 



Figures. Winter/summer ambient mine temperature 7 



Table 1 . Summary- of physical and climatological characteristics of abandoned mines 4 



Table 2. Daily mine temperature and relative humidity-winter/summer. 5 



Table 3. Bats observed at abandoned mines 8 



Table 4. Summary of microclimate data for Townsend's Big-eared Bat (C. townsendii) 10 



