This best-selling majors-level book, by Charles Krebs, approaches ecology as a series of problems, which are best understood by evaluating empirical evidence through data analysis and application of quantitative reasoning. No otherbook presents analytical, quantitative, and statistical ecological information in an equally accessible style for students. Reflecting the way ecologists actually practice, the new edition emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance.Introduction to the Science of Ecology, Evolution and Ecology, Behavioral Ecology, Analyzing Geographic Distributions,Factors That Limit Distributions I: Biotic, Factors That Limit Distributions II: Abiotic, Distribution and Abundance, Population Parameters and Demographic Techniques, Population Growth, Species Interactions I: Competition, Species Interactions II: Predation, Species Interactions III: Herbivory and Mutualism, Species Interactions IV: Disease and Parasitism, Regulation of Population Size, Applied Problems I: Harvesting Populations, Applied Problems II: Pest Control, Applied Problems III: Conservation Biology, Community Structure, Community Dynamics I: Biodiversity, Community Dynamics II: Predation and Competition, Community Dynamics III: Nonequilibrium Communities, Ecosystem Metabolism I: Primary Production, Ecosystem Metabolism II: Secondary Production, Ecosystem Metabolism III: Nutrient Cycles, Ecosystem Dynamics under Changing Climates, Ecosystem Health: Human Impacts.Intended for those interested in learning the basics of ecology