Author: Massachusetts. Bureau of Wildlife Research and ManagementPublisher:
ISBN:
Category : Waterfowl
Languages : en
Pages : 14
Book Description
Waterfowl Gizzard Shot Survey
Author: Massachusetts. Bureau of Wildlife Research and ManagementPublisher:
ISBN:
Category : Waterfowl
Languages : en
Pages : 14
Book Description
Final Environmental Statement
Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category : Birds
Languages : en
Pages : 294
Book Description
Steel Shot Regulations
Author: United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Administrative Practice and ProcedurePublisher:
ISBN:
Category : Firearms
Languages : en
Pages : 326
Book Description
Exposure of Waterfowl to Lead
Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category : Ducks
Languages : en
Pages : 20
Book Description
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.
Pacific Waterfowl Flyway Report
Author: Current Federal Aid Research Report
Author: Publisher:
ISBN:
Category : Federal aid to research
Languages : en
Pages : 938
Book Description
Shot Ingestion in Waterfowl Gizzards Collected During the 1997 Waterfowl Hunting Season
Author: R. J. HicksDiseases of Wild Waterfowl
Author: Gary A. WobeserPublisher: Springer Science & Business Media
ISBN: 1461559510
Category : Science
Languages : en
Pages : 318
Book Description
Management of wild waterfowl has become increasingly intensive. Many birds now hatch in managed nesting cover or in artificial nesting structures, use man-made wetlands, and winter on crowded refuges while consuming a grain diet The water they use is often limited in supply and may contain residues from its many prior users. Unfortunately, intensified management often results in new problems, among which disease is important There are many similarities between the current form of management used for some waterfowl and that used in domestic animals. In both, the objective is to maintain a healthy, productive population. Dealing with health problems in waterfowl will benefit from combining the skills of veterinary medicine and wildlife ecology. Revisiting this book after 15 years allowed me to consider changes at the interface between the two disciplines. Veterinary medicine traditionally has been concerned with the individual and with treating sick animals, while the ecologist is concerned with populations and the manager has limited interest in treating sick birds. During this period there has been a marked increase in awareness among veterinarians that they have a responsibility in wildlife and conservation biology. Curricula of many veterinary colleges now include material on non-domestic animals and attempt to put disease in an ecological context. Also during this time, waterfowl managers have become more aware of disease as a factor in population biology and there are early attempts to put numbers to "disease" in models of continental waterfowl populations.
Author: 
Author: