Download or read book Toxicity of Lead and Proposed Substitute Shot to Mallards written by Patuxent Wildlife Research Center and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poisoning of North American waterfowl resulting from the ingestion of lead shot by ducks, geese, and swans causes an estimated annual mortality of 2% to 3% of the population. To alleviate this problem the search for a suitable substitute for lead has been underway since the early 1950's. Proposed substitutes for lead shot were evaluated in a series of acut toxicity tests with pen-reared mallards. Most candidate materials were as toxic to ducks as commercial lead shot. Coating or alloying lead with other materials only delayed mortality among dosed ducks.

Download or read book Toxicity of Lead and Proposed Substitute Shot to Mallards written by Patuxent Wildlife Research Center and published by . This book was released on 1974 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicity of Lead and Proposed Substitute Shot to Mallards written by Patuxent Wildlife Research Center and published by . This book was released on 1974 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicity of Lead and Proposed Substitute Shot to Mallards written by J. R. Longcore and published by . This book was released on 1974 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poisoning of North American waterfowl resulting from the ingestion of lead shot by ducks, geese, and swans causes an estimated annual mortality of 2% to 3% of the population. To alleviate this problem the search for a suitable substitute for lead has been underway since the early 1950's. Proposed substitutes for lead shot were evaluated in a series of acut toxicity tests with pen-reared mallards. Most candidate materials were as toxic to ducks as commercial lead shot. Coating or alloying lead with other materials only delayed mortality among dosed ducks.

Download or read book Toxicity of Lead and Proposed Substitute Shot to Mallards Classic Reprint written by J. R. Longcore and published by Forgotten Books. This book was released on 2017-11-18 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Toxicity of Lead and Proposed Substitute Shot to Mallards Mortality was not significantly different among lead-dosed adult or first year hen and drake pen - reared mallards; lead-dosed adult, wild mallards of both sexes; and lead - dosed adult, male black ducks (anas rubripes). The ingestion of one lead shot, size 4, by each of 80 pen - reared mallards caused an average 19% mortality. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Lead Hazards to Fish Wildlife and Invertebrates written by Ronald Eisler and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Mallard written by and published by . This book was released on 1972 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Mallard written by United States Department of the Interior. U.S. Fish and Wildlife Service. Bureau of Sport Fisheries and Wildlife, author and published by . This book was released on 1975 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exposure of Marine Birds to Environmental Pollutants written by Harry M. Ohlendorf and published by . This book was released on 1978 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature review summarizing the effects known to date.

Download or read book Special Scientific Report wildlife written by and published by . This book was released on 1974 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wetlands Ecology for the Western United States written by Philip H. Arend and published by . This book was released on 1969 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mammals Imported Into the United States in 1972 written by Roger B. Clapp and published by . This book was released on 1974 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resource Publication United States Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on 1965 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Published Research and Management Findings written by and published by . This book was released on 1974 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resource Publication written by and published by . This book was released on 1965 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1975 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: