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INHS Bulletin vol.27:3PDF

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Title:Lead Poisoning as a Mortality Factor in Waterfowl Populations
Author(s):Bellrose, Frank Chapman
Subject(s):Waterfowl
Mortality
Lead Poisoning
Abstract:THE mortality resulting from lead poisoning in populations of wild waterfowl has been a cause of concern to conservationists for many years. This concern has grown out of the knowledge that lead poisoning is of common occurrence among waterfowl, that this poisoning results from the ingestion of lead by the birds in their feeding, and that large numbers of lead pellets fired from the guns of hunters lie in lakes and marshes visited by waterfowl. The present paper is devoted primarily to the evaluation of losses resulting from lead poisoning in wild waterfowl populations. Two reports have been published which presented preliminary findings on this subject (Bellrose 1951; Jordan & Bellrose 1951). Efforts to develop a nontoxic shot were treated in a paper dealing with the value of various shot alloys in relation to lead poisoning (Jordan & Bellrose 1950) ; additional data on this subject are presented herein. Findings as to the physiological effects of lead poisoning on captive waterfowl have been discussed in a paper bv Tordan & Bellrose (1951). The approach toward evaluating the importance of lead poisoning in wild waterfowl was threefold : ( 1 ) appraisal of the incidence and magnitude of waterfowl die-offs resulting from lead poisoning, (2) appraisal of the incidence of ingested lead shot among waterfowl populations in fall and early winter, and (3) appraisal of waterfowl losses resulting from the ingestion of various quantities of lead shot per bird.
Issue Date:1959-05
Publisher:Champaign : Illinois Natural History Survey
Series/Report:Illinois Natural History Survey Bulletin; v. 027, no. 03
Genre:Article
Type:Text
Language:English
URI:http://hdl.handle.net/2142/44086
ISSN:0073-4918
Publication Status:published or submitted for publication
Peer Reviewed:is peer reviewed
Rights Information:Copyright 2009 University of Illinois Board of Trustees. All rights reserved.
Date Available in IDEALS:2013-05-24


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