Although biologists have directed much attention to estimating the extent and causes of species losses, the consequences for ecosystem functioning have been little studied. This book examines the impact of biodiversity on ecosystem processes in tropical forests - one of the most species-rich and at the same time most endangered ecosystems on earth. It covers the relationships between biodiversity and primary production, secondary production, biogeochemical cycles, soil processes, plant life forms, responses to disturbance, and resistance to invasion. The analyses focus on the key ecological interfaces where the loss of keystone species is most likely to influence the rate and stability of ecosystem processes.

"Life" integrates scholarship, an engaging narrative style, effective pedagogy, and art-work into a cohesive presentation of biological data and ideas that should interest students. The third edition features a new co-author - H.Craig Heller and new information - from new molecular techniques in biotechnology, immunology, and systematics. New chapters have been added on conservation biology and on recombinant DNA. Organized differently, the text addresses evolution before diversity and physiology. The artwork blends scientific precision and visual impact.