George Reiger made general introductions to the symposium; Spencer G. Sealy, Daniel W. 

 Anderson, and I served as Session Chairmen; and James C. Bartonek served as General Chair- 

 man. Elvis J. Stahr was guest speaker at the symposium banquet. 



Most credit for the success of this symposium goes to the 52 persons who as authors, 

 coauthors, or summarizers of sessions presented much meaningful information in their presen- 

 tations, during recorded discussions, and during many informal occasions. I wish to make 

 special recognition of Ian C. T. Nisbet for his skillful summary of the symposium. 



Editorial assistance in preparing the proceedings was provided by Judith Brogan. 



Harvey K. Nelson 



Chairman of Symposium and 

 Director of Wildlife Resources 



vui 



