TABLE OF CONTENTS 



ABSTRACT 



ACKNOWLEDGEMENTS 



INTRODUCTION 1 



STUDY AREA AND METHODS 2 



RESULTS 4 



General Summary of External Surveys 4 



Bat Species Captured or Observed 4 



Ultrasonic Monitoring 5 



Patterns of Mine Use 5 



Internal Surveys 6 



DISCUSSION 7 



General 7 



Mine Selection 8 



MANAGEMENT CONSIDERATIONS 9 



LITERATURE CITED 12 



TABLE 1. Mine Sites Surveyed for Potential/actual Use by Bats 15 



TABLE 2. Bats Captured or Observed in 1997-1998 20 



TABLE 3. Bats Detected with ANABAT Ultrasound Monitors 21 



TABLE 4. Mines surveyed internally in 1998 23 



FIGURE 1. Elevational Distribution of Monitored Mines Workings 25 



FIGURE 2. Relationship Between Elevation and Used Mine Sites 27 



