A comprehensive look at the natural history and management of this keystone species.

The Beaver: Its Life and Impact is designed to satisfy the curiosity and answer the questions of anyone with an interest in these animals, from students who enjoy watching beaver ponds at nature centers to homeowners and land managers. Color and black-and-white photographs document every aspect of beaver behavior and biology, the variety of their constructions, and the habitats that depend on their presence.

A second edition of The Beaver: Ecology and Behavior of a Wetland Engineer, published by Cornell University Press under its Comstock Publishing Associates imprint in 2003, this book has been revised throughout and includes a new section on population genetics and features updated data about the beaver's range in North America, reintroduction efforts in Europe, and information about the world's largest beaver dam, discovered in northern Alberta in 2010 and visible from space, as well as the most current bibliography on the subject.

As this book shows, the beaver is a keystone species—their skills as foresters and engineers create and maintain ponds and wetlands that increase biodiversity, purify water, and prevent large-scale flooding. Biologists have long studied their daily and seasonal routines, family structures, and dispersal patterns. As human development encroaches into formerly wild areas, property owners and government authorities need new, nonlethal strategies for dealing with so-called nuisance beavers. At the same time, the complex behavior of beavers intrigues visitors at parks and other wildlife viewing sites because it is relatively easy to observe.

Preface
IntroductionPart I: The Organism
1. Now and Then: The Species, Including Fossils
2. Form, Weight, and Special Adaptations
3. Diving and Thermoregulation: From Land Mammal to Semiaquatic Design and Function
4. Energy BudgetPart II: Behavior
5. Families as Social Units
6. Communication by Scent and Sound
7. Infrastructure: Dams, Lodges, Trails, and Canals
8. Beaver Time
9. Food SelectionPart III: Populations
10. Reproduction, Development, and Life Expectancy
11. Population Densities and Dynamics
12. Finding a Home: DispersalPart IV: Ecology
13. Where They Live and Why: Habitat Requirements
14. Mortality and Predators
15. Parasites and Diseases
16. Maker of Landscapes: Creating Habitat for Plants, Animals, and PeoplePart V: Beaver and People: Conservation, Use, and Management
17. "Here before Christ": Fur Trade, the "Beaver Republic" (Hudson's Bay Company), and Fur Trapping Today
18. Reintroductions and Other Transplants
19. "Nuisance Beavers" Claim Their Land
20. Needed: An Ecosystems Engineer for Habitat Restoration and Other Services
21. Living with Beavers: Conservation and Proactive ManagementIndex

The Beaver: Its Life and Impact is designed to satisfy the curiosity and answer the questions of anyone with an interest in these animals, from students who enjoy watching beaver ponds at nature centers to homeowners and land managers. Color and black-and-white photographs document every aspect of beaver behavior and biology, the variety of their constructions, and the habitats that depend on their presence.

A second edition of The Beaver: Ecology and Behavior of a Wetland Engineer, published by Cornell University Press under its Comstock Publishing Associates imprint in 2003, this book has been revised throughout and includes a new section on population genetics and features updated data about the beaver's range in North America, reintroduction efforts in Europe, and information about the world's largest beaver dam, discovered in northern Alberta in 2010 and visible from space, as well as the most current bibliography on the subject.

As this book shows, the beaver is a keystone species—their skills as foresters and engineers create and maintain ponds and wetlands that increase biodiversity, purify water, and prevent large-scale flooding. Biologists have long studied their daily and seasonal routines, family structures, and dispersal patterns. As human development encroaches into formerly wild areas, property owners and government authorities need new, nonlethal strategies for dealing with so-called nuisance beavers. At the same time, the complex behavior of beavers intrigues visitors at parks and other wildlife viewing sites because it is relatively easy to observe.