I certify that I have read this study and that in my opinion it conforms to acceptable standards 

 of scholarly presentation and is fully adequate, in scope and quality, as a dissertation for the degree of 

 Doctor of Philosophy. 



Kent H. Redfferd, Chair 



Associate Professor of Forest Resources and Conservation 



I certify that I have read this study and that in my opinion it conforms to acceptable standards 

 of scholarly presentation and is fully adequate, in scope^d quality, as a dissertation for the degree of 

 Doctor of Philosophy. 



Bums 

 Professor of Anthropology 



I certify that I have read this study and that in my opinion it conforms to acceptable standards 

 of scholarly presentation and is fully adequate, in scope and quality, as a dissertation for the degree of 

 Doctor of Philosophy. 



A=,^ 





Eisenberg 

 Jne Ordway Professoj 

 Ecosystem Conservation 



I certify that I have read this study and that in my opinion it conforms to acceptable standards 

 of scholarly presentation and is fully adequate, in scope and quality, as a dissertation for the degree of 

 Doctor of Philosophy. 



Allyn M. Sj^afman 

 Professor of Anthropology 



I certify that I have read this study and that in my opinion it conforms to acceptable standards 

 of scholarly presentation and is fully adequate, in scope and quality, as a dissertation for the degree of 

 Doctor of Philosophy. 



lelvin E. Sunquist 

 Associate Scientist of Forest 

 Resources and Conservation 



This dissertation was submitted to the Graduate Faculty of the School of Forest Resources and 

 Conservation in the College of Agriculture and to the Graduate School and was accepted as partial 

 fulfilhnent of the requirements for the degree of Doctor of Philosophy. 



December 1993 



_^^^ Director, Forest Resources and 



Conservation 



Dean, Graduate School 



