Goldsmiths and silversmiths of England

Lever, Christopher

Hutchinson

Fish are an important part of a region's biological diversity and a human resource throughout the world. They are valuable for food and/or as a sporting asset. The human interest in fish has inevitably led to the widespread practice of introducing various species to waters outside their normal range. This unique book describes when, where, why, how, and by whom the alien inland fishes now living in a wild state throughout the world were introduced. It also exploreshow they subsequently became naturalized and what, if any, effects they have had in their new environment. Includes a comprehensive index useful for cross-referencing Explains the multiplicity of technical terms in a complete glossary Provides country listings with naturalized fish species Explores the benefits and drawbacks of species displacement in their new ecosystems

Naturalized Fishes of the World

Science & Math

Biological Sciences

Academic Press

This book describes how the various alien reptiles and amphibians now living in the wild throughout the world were first introduced, how they subsequently became naturalized, their present distribution and status in those countries to which they were introduced, and their ecological and socio-economic impact on the native biota and local economies. Many species have had a more or less neutral impact, being neither beneficial nor harmful. However, several have had a positive ecological or socio-economic impact, while some such as the cane toad, have had an extremely destructive effect.The criteria for inclusion of a species are that it should have been imported from its natural range to a new country by human agency--either accidentally or deliberately--and that it should currently be established in the wild in self-maintaining and self-perpetuating populations unsupported by and independent of mankind.

Naturalized Reptiles and Amphibians of the World

Reference

Words, Language & Grammar

Oxford University Press

Naturalized birds of the world

wiley

Naturalized Mammals of the World

Longman Publishing Group

After habitat loss, the impact of naturalized exotics is the single most important cause of extinction in native species throughout the world. In this book, updated from the first edition in 1987, Christopher Lever describes when, where, how and by whom the world's naturalized birds were introduced to places outside their natural range, and discusses the economic and ecological impacts each has had in its naturalized regions.

Naturalised Birds of the World

Christopher Helm Ornithology

The Mandarin Duck

Shire Publications

The Mandarin Duck is a small and (in the case of the males) spectacularly colourful species of waterfowl. Widely kept in aviaries around the world, populations often escaped to form wild colonies. One of the largest and best-studied is in southern England. Although declining and nowadays surprisingly hard to find, Britain's wild Mandarin population is probably more numerous than that of the duck's true home, China and the Russian Far East, where it is now endangered.This Poyser monograph is a detailed account of this beautiful duck's lifestyle and biology, with particular emphasis on invasive populations in Britain and overseas. It is a superb addition to the long-running and acclaimed Poyser series.

The Mandarin Duck (Poyser Monographs)

A&C Black

Pp. xxvii, 230; 11 color photos, 21 black-and-white maps. Publisher's original dark brown cloth, lettered in gilt on the spine, with dark-brown textured endpapers, in a color pictorial dust jacket, lg 8vo. The cane toad, as a result of human intervention, has become the most widely distributed terrestrial vertebrate in the Pacific and Caribbean regions. This book describes the biology, history, and ecological and socio-economic impacts of a successful colonist which in some parts of the world, especially Australia, has become a pest of major proportions, while in others it is a protected species. It provides in detail the history of the various introductions of the cane toad outside its natural range in Central and South America, and describes the consequences that can arise from the introduction, especially for the biological control of existing pests, of an exotic species. There are separate chapters on the impact and control of the cane toad in Australia (from the blurb on the rear panel of the jacket). No ownership marks and no signs of use.

Cane Toad, the

Health, Fitness & Dieting

Diseases & Physical Ailments

Westbury Academic & Scientific Pub.

They Dined on Eland: The Story of the Acclimatization Societies

UNKNO

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Books by Lever, Christopher