A series of concise books, each by one or several authors, will provide prompt, world-wide information on approaches to analyzing ecological systems and their interacting parts. Syntheses of results in turn will illustrate the effectiveness, and the limitations, of current knowledge. This series aims to help overcome the fragmen tation of our understanding about natural and managed landscapes and water- about man and the many other organisms which depend on these environments. We may sometimes seem complacent that our environment has supported many civilizations fairly well - better in some parts of the Earth than in others. Modern technology has mastered some difficulties but creates new ones faster than we anticipate. Pressures of human and other animal populations now highlight complex ecological problems of practical importance and theoretical scientific interest. In every climatic-biotic zone, changes in plants, soils, waters, air and other resources which support life are accelerating. Such changes engulf not only regions already crowded or exploited. They spill over into more natural areas where contrasting choices for future use should remain open to our descendents-where Nature's own balances and imbalances can be interpreted by imaginative research, and need to be.

Analysis of an Ecosystem

1. Combination of Qualitative and Quantitative Approaches
2. Analysis of Ecosystems
3. Studying the Effects of Environmental Factors on Ecosystems
4. Phenology in Productivity Studies
Primary Producers
5. Biomass and Productivity Models of Forest Canopies
6. A Synthesis of Studies by the Harvest Method: Primary Production Relations in the Temperate Deciduous Forests of Japan
7. Metabolism of Terrestrial Ecosystems by Gas Exchange Techniques: The Brookhaven Approach
Consumer Organisms
8. Insect Influences on the Forest Canopy
9. Estimation of the Effects of Phytophagous Insects on Forest Production
10. Secondary Production of Birds and Mammals
Decomposer Populations
11. Soil Flora: Studies of the Number and Activity of Microorganisms in Woodland Soils
12. The Role of Soil Invertebrates in Turnover of Organic Matter and Nutrients
Nutrient Cycling
13. Micronutrients: Forest Ecology and Systems Analysis
14. Biological Cycling of Minerals in Temperate Deciduous Forests
15. Carbon Cycle and Temperate Woodlands
Hydrologic Cycles
16. The Water Flux in Temperate Forests: Precipitation and Evapotranspiration
17. Measurement and Sampling of Outputs from Watersheds
18. Models of the Hydrologic Cycle
Geographic Index of World Ecosystems.