Alaska's great size is mirrored by the large number and diversity of its freshwater ecosystems. This volume reviews and synthesizes research on a variety of Alaskan freshwaters including lakes, rivers and wetlands. The vast range of Alaskan habitats ensures that the chapters in this book will provide valuable information for readers interested in freshwaters, particularly nutrient dynamics, biotic adaptations, recovery mechanisms of aquatic biota, stream succession and the management of human-induced changes in aquatic habitats.

This book explores ecologically sound and innovative techniques in insect pest management in field and protected crops. From a general overview of pest management to new biorational insecticides such as insect growth regulators, and new strategies to reduce resistance, the coverage is entirely up-to-date. Other chapters describe advances in pest management of important crops such as cotton, corn, oilseed rape and various vegetables.