and as an area Extension agent with Colorado State University. Mr. Murphy is currently completing a Ph.D. program in plant physiology. His dissertation research focuses on the environmental, developmental, and physiological mechanisms that regulate tiller initiation in grasses. Mr. Murphy's research interests include physiological plant ecology, plant population ecology, photobiology and plantherbivore interactions. David D. Briske received his B.A. in botany fromNorth Dakota State University in 1973 and his Ph.D. in range science from Colorado State University in 1978. His research and teaching interests include physiological plant ecology, developmental plant morphology, plant-herbivore interactions, clonal plant biology, plant population ecology, and grassland ecology. The goals of Dr. Brisk& research program are to develop a greater understanding of the ecophysiology and population ecology of the bunchgrass growth form which dominates rangelands throughout the world and to generate and synthesize ecological information necessary to evaluate current strategies and provide new alternatives for grassland conservation and management.