18 Steven P. Platania, Gilbert S. Grant, David S. Lee 



ACKNOWLEDGMENTS.— M. K. Clark, E. W. Irvin, and H. Baum 

 aided in the field, and the U.S. Fish and Wildlife Service provided 

 financial support (Contract No. 14 16 0009-80-044). H. Rahn originally 

 suggested the study. G. C. Whittow, H. Rahn, J. E. Cooper, J. War- 

 ham, and B. K. McNab critically reviewed the manuscript. We thank 

 these people and agencies for their assistance. Contribution 1986-1 of 

 the North Carolina Biological Survey. 



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Accepted 11 April 1984 



