The Literature of the Western Clapper Rails PDF Download
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Author: Sanford R. Wilbur Publisher: ISBN: Category : Birds Languages : en Pages : 40
Book Description
Clapper rails (Rallus longirostris) are widely distributed in coastal marshes and river valleys of North and South America and the Caribbean. Seven of the 26 subspecies currently recognized by various authorities occur in the western portions of the United States and Mexico. Three races are classified by both the Department of Fish and Game as "endangered". These subspecies are the California clapper rail, the Light-footd clapper rail, and the Yuma clapper rail. Our investigations of these endangered forms included a review of pertinent literature and an examination of specimen data in selected museum collections. This paper deals with primarily with the endangered forms but also attempts to describe the general relationships of all western clapper rails.
Author: Sanford R. Wilbur Publisher: ISBN: Category : Birds Languages : en Pages : 40
Book Description
Clapper rails (Rallus longirostris) are widely distributed in coastal marshes and river valleys of North and South America and the Caribbean. Seven of the 26 subspecies currently recognized by various authorities occur in the western portions of the United States and Mexico. Three races are classified by both the Department of Fish and Game as "endangered". These subspecies are the California clapper rail, the Light-footd clapper rail, and the Yuma clapper rail. Our investigations of these endangered forms included a review of pertinent literature and an examination of specimen data in selected museum collections. This paper deals with primarily with the endangered forms but also attempts to describe the general relationships of all western clapper rails.
Author: Barry Taylor Publisher: A&C Black ISBN: 140813537X Category : Nature Languages : en Pages : 601
Book Description
This is a guide to rails, a relatively homogeneous family of birds spread throughout the world. Barry Taylor and Ber van Perlo have described and illustrated 145 species of rails, including two that are newly described, and also ten that are recently extinct and two that are almost certainly extinct. The book, based on up-to-date references and on new observations, is the first to give comprehensive information on field identification (including voice), covering all species and races for which details are known. It is also the first to provide descriptions of the immature and juvenile plumages of many species. The authors provide a detailed summary of current knowledge of all aspects of rail biology and their often complex behaviour, social structure, and family life. They explain how such apparently poorly flying birds can undertake intercontinental migrations and are such widespread and successful colonists of remote oceanic islands. They also discuss the remarkable ease and speed with which species on such islands have evolved into flightless forms in the absence of predators, a fact that has led to the rapid extinction of numerous island taxa following the arrival of man. Rail habitats are fast disappearing, say the authors, and many rails become endangered before enough is known about them to plan effective conservation measures. The book provides information on distribution, status, habitat requirements, and current threats, and it gives conservation priorities for threatened species.
Author: Sanford R. Wilbur
Author: Sanford R. Wilbur
Author: Barry Taylor
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Author: Sidney Dillon Ripley
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Author: Brooke Meanley
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