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Author : Donald Frary Hansen
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (31 download)
Download or read book Lead Poisoning as a Mortality Factor in Waterfowl Populations written by Donald Frary Hansen and published by . This book was released on 1957 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank Chapman Bellrose
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (319 download)
Download or read book Lead Poisoning as a Mortality Factor in Waterfowl Populations written by Frank Chapman Bellrose and published by . This book was released on 1959 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Illinois. Natural History Survey Division
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (632 download)
Download or read book Lead Poisoning As a Mortality Factor in Waterfowl Populations written by Illinois. Natural History Survey Division and published by . This book was released on 1959 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.3/5 (121 download)
Download or read book Lead Poisoning in Waterfowl written by and published by . This book was released on 1986 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Glen C. Sanderson
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Review of the Problem of Lead Poisoning in Waterfowl written by Glen C. Sanderson and published by . This book was released on 1986 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patuxent Wildlife Research Center
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (91 download)
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.
Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)
Download or read book Exposure of Waterfowl to Lead written by U.S. Fish and Wildlife Service and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wing bones of 4,190 ducks of seven species collected in 1972 and 1973 were analyzed for lead to provide a base line for lead burdens and to determine geographic patterns of lead exposure in these species. Lead residues ranged from trace amounts to 361 ppm and reflected the history of exposure to lead from ingested shotshell pellets and other sources. Wing bones of adults contained higher residues than did those of immatures. Levels were lower in birds from the Central Flyway than in those from other flyways.
Author : Alexander Wetmore
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (31 download)
Download or read book Lead Poisoning in Waterfowl written by Alexander Wetmore and published by . This book was released on 1919 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.:/5 (319 download)
Download or read book Final Environmental Statement written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States Department of the Interior. U.S. Fish and Wildlife Service. Bureau of Sport Fisheries and Wildlife, author
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 (91 download)
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:
Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (319 download)
Download or read book Use of Lead Shot for Hunting Migratory Birds in the United States written by U.S. Fish and Wildlife Service and published by . This book was released on 1985 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alfred J. Godin
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.3/5 (91 download)
Download or read book Test of Grit Types in Alleviating Lead Poisoning in Mallards written by Alfred J. Godin and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
Author : Mirjam Nadjafzadeh
Publisher : Logos Verlag Berlin GmbH
ISBN 13 : 3832529896
Total Pages : 142 pages
Book Rating : 4.8/5 (325 download)
Download or read book Feeding Ecology of and Lead Exposure in a Top Predator written by Mirjam Nadjafzadeh and published by Logos Verlag Berlin GmbH. This book was released on 2011 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the feeding ecology of raptors has attracted the attention of many scientists, aspects such as diet selection and foraging strategy are still poorly understood. This is particularly true for large species such as the white-tailed eagle. Representative assessments of the contribution of food sources containing toxins such as lead to raptor diets are scarce but are essential for optimising conservation efforts. This dissertation investigated the feeding ecology of white-tailed eagles to shed light on the interaction of such top predators with their environment and to improve the conservation management of this lead-exposed species. A use of complementary methods identified the most effective approach for dietary investigations on free-ranging raptors. The findings revealed that the foraging strategy of white-tailed eagles is influenced by both individual and environmental factors and corresponds to an efficient food intake in terms of optimal foraging theory. The main sources of lead fragments that induce fatal lead poisoning are shot mammalian carcasses which constitute important alternative diet components for white-tailed eagles during the hunting season. One approach to solve the lead poisoning problem can be the use of lead-free bullets by hunters that fragment into sufficiently large particles which would be avoided by scavenging eagles and birds with similar feeding behaviour.
Author : Alfred J. Godin
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.3/5 (91 download)
Download or read book Test of Grit Types in Alleviating Lead Poisoning in Mallards written by Alfred J. Godin and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
Author : Richard C. Banks
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
Download or read book Human Related Mortality of Birds in the United States written by Richard C. Banks and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A relatively few species account for most of this mortality but continue to maintain large, harvestable populations, suggesting that the numbers of most bird species are essentially unaffected by the human activities discussed. Other activities of man that do not necessarily result in the death of birds but rather reduce reproductive potential are more likely to have long-term effects on avian populations.
Author :
Publisher :
ISBN 13 :
Total Pages : 628 pages
Book Rating : 4.F/5 ( download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 932 pages
Book Rating : 4.F/5 ( download)
Download or read book Special Scientific Report--wildlife written by and published by . This book was released on 1949 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
