Human Exploitation and Biodiversity Conservation

Human Exploitation and Biodiversity Conservation

Author: David L. Hawksworth

Publisher: Springer Science & Business Media

Published: 2008-01-03

Total Pages: 507

ISBN-13: 1402052839

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This book presents a wide range of contributions addressing diverse aspects of biodiversity exploitation and conservation. These collectively provide a snapshot of ongoing action and state-of-the-art research, rather than a series of necessarily more superficial overviews. Examples presented here derive from studies in 17 countries including Africa, Asia, Europe, and North and South America. These reports will stimulate future work toward attaining a sustainable balance between the conservation and exploitation of biodiversity.


Gulls Simplified

Gulls Simplified

Author: Pete Dunne

Publisher: Princeton University Press

Published: 2018-11-13

Total Pages: 208

ISBN-13: 0691156948

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A simpler and more user-friendly visual approach to gull identification This unique photographic field guide to North America’s gulls provides a comparative approach to identification that concentrates on the size, structure, and basic plumage features of gulls—gone are the often-confusing array of plumage details found in traditional guides. Featuring hundreds of color photos throughout, Gulls Simplified illustrates the variations of gull plumages for a variety of ages, giving readers strong visual reference points for each species. Extensive captions accompany the photos, which include comparative photo arrays, digitized photo arrays for each age group, and numerous images of each species—a wealth of visual information at your fingertips. This one-of-a-kind guide includes detailed species accounts and a distribution map for each gull. An essential field companion for North American birders, Gulls Simplified reduces the confusion commonly associated with gull identification, offering a more user-friendly way of observing these marvelous birds. Provides a simpler approach to gull identification Features a wealth of color photos for easy comparison among species Includes detailed captions that explain identification criteria and aging, with direct visual reinforcement above the captions Combines plumage details with a focus on size, body shape, and structural features for easy identification in the field Highlights important field marks and physical features for each gull


The Canada Goose (Branta Canadensis)

The Canada Goose (Branta Canadensis)

Author: U.S. Fish and Wildlife Service

Publisher:

Published: 1981

Total Pages: 876

ISBN-13:

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All aspects of Canada goose biology, research, management and taxonomy are included. Literature search was carried out through 1977. 646 citations.