Supplement. 1997 Annual Meeting. Jointly with The Nature Conservancy. 10-14 August 1997, Albuquerque, New Mexico. "Changing Ecosystems: Natural and Human Influences." Abstracts || Supplement. 1997 Annual Meeting. Jointly with The Nature Conservancy. 10-14 August 1997, Albuquerque, New Mexico. "Changing Ecosystems: Natural and Human Influences." Abstracts