This is one of the first books to review the quantitative tools used in the study of such subjects as biodiversity, resource management, and endangered species preservation. The topics covered include population viability analysis, population dynamics, metapopulation models, estimating risks and timing of extinctions, quasi-extinction, recovery dynamics, land use, population genetics and the genetics of bottleneck populations. Now reprinted in softcover, the book remains of great interest to graduate students and practicing biologists working in conservation biology, ecology, and natural resources.