About the editors Pedro Barbosa is a Professor of Entomology at the University of Maryland. His numerous publications include Readings in Entomology, Manual of Basic Techniques in Insect Histology, Insect Outbreaks, Novel Aspects of Insect-Plant Interactions and Introduction to Forest and Shade Tree Entomology. He received his BS from the City College of New York and MS and PhD degrees from the University of Massachusetts. Vera A. Krischik is a staff scientist at the Institute of Ecosystem Studies in Millbrook, New York. She is an active member of the Entomological Society of America, the Ecological Society of America, and the Audubon Naturalist Society. She was a recent recipient of an NSF Visiting Professorship for Women. She received her BA from the State University of New York and MS and PhD degrees from the University of Maryland. Clive G. Jones is an Associate Scientist at the Institute of Ecosystem Studies. He is a member of the Entomological Society of America and the British Ecological Society. He has been a recipient of the Winston Churchill Fellowship and the British Ecological Society Travelling Fellowship. He received his BSc from the University of Salford, UK, and a DPhil from the University of York, UK.