chapter 1 Introduction -- chapter 2 Managing Risk to Ecological Populations -- chapter 3 Population Protection Goals -- chapter 4 Introduction -- chapter 5 Genetic Variation in Population-Level Ecological Risk Assessment -- chapter 6 The Spatial Structure of Populations and Ecological Risk Assessment -- chapter 7 Introduction -- chapter 8 Empirical Approaches to Population-Level Ecological Risk Assessment -- chapter 9 Modeling Approaches to Population-Level Ecological Risk Assessment -- chapter 10 Development of Ecological Risk Assessment Framework -- chapter 11 Implementation Issues.