Kategoria BISAC: Science >> Life Sciences - Zoology - Mammals

Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries.

This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings.

This comprehensive volume will be an...

Weit springen oder tief tauchen: Welche Vorteile bieten diese Fahigkeiten, und warum sind sie moglich? Auf diese und andere Fragen mehr liefert das Buch Antworten anhand von Beispielen und Erlauterungen der Zusammenhange. Es ist in drei Teile gegliedert: Ubersicht uber die grossen Wirbeltier-Gruppen; Vergleichende Anatomie der Organsysteme; Physikalische und biomechanische Grundsteine der Funktionsmorphologie. Gute Lesbarkeit, klare Erklarungen und der direkte Bezug zu biologischen Beispielen machen dieses Buch zu einer einzigartigen Wissensquelle.

Extensive grazing and browsing by domestic and wild herbivores shape the vegetation composition, structure and dynamics of many terrestrial ecosystems. This volume investigates how large herbivores not only influence the structure and distribution of the vegetation, but also affect nutrient flows and the responses of associated fauna. The mechanisms and processes underlying the herbivores' behaviour, distribution, movement and direct impact on the vegetation, and the dynamics of nutrients, plant species, and vegetation composition in terrestrial ecosystems are discussed in detail. It is...

This book explores afresh the long-standing interest, and emphasis on, the special' capacities of primates. Some of the recent discoveries of the higher cognitive abilities of other mammals and also birds challenge the concept that primates are special and even the view that the cognitive ability of apes is more advanced than that of nonprimate mammals and birds. It is therefore timely to ask whether primates are, in fact, special and to do so from a broad range of perspectives. Divided into five sections this book deals with topics about higher cognition and how it is manifested in...

Central Yellowstone includes the range of one of the largest migratory populations of bison in North America as well as a unique elk herd that remains in the park year round. These populations live in a varied landscape with seasonal and often extreme patterns of climate and food abundance. The reintroduction of wolves into the park a...

What do dogs value? Why do they get so excited by their daily walks? And why may dogs of different breeds have different needs? Veterinarian, professor of animal behavior, and dog lover Dr. Paul McGreevy answers these questions and many more. He takes readers on a walk in the paws of man s best friend to illuminate the challenges and confusions faced by dogs in the modern world.

Filled with humor, easy-to-follow instructions, and memorable characters (including Uncle Wolf and Feral Cheryl ), A Modern Dog s Life will help you better understand your dog with:...