نتایج جستجو برای: waterfowl
تعداد نتایج: 1321 فیلتر نتایج به سال:
Abstract Nutrients such as nitrogen and phosphorus are typically considered detrimental to wetland values, but waterfowl can be numerous on nutrient-rich wetlands. Waterfowl were counted three six times per year nine treatment lagoons associated wetlands (2,025 ha) at the Western Treatment Plant (south-east Australia) from 2000, help maintain ecological values of this Ramsar-listed well treatin...
Waterfowl harvest management in North America, for all its success, historically has had several shortcomings, including a lack of well-defined objectives, a failure to account for uncertain management outcomes, and inefficient use of harvest regulations to understand the effects of management. To address these and other concerns, the U.S. Fish and Wildlife Service began implementation of adapt...
Mallard Anas platyrhynchos ecology drives current habitat management strategies for most waterfowl; however, are these suitable other dabbling duck species? Migratory waterfowl, in addition to mallards, the lower Mississippi Alluvial Valley experience heavy hunting pressure, so should be appropriate a broader array of species. We investigated associations ducks (dabblers) Arkansas portion and f...
Highly pathogenic avian influenza A(H5N8) viruses were isolated from migratory waterfowl in South Korea during fall 2014-winter 2015, a recurrence after initial introduction in winter 2014. These reappeared viruses were phylogenetically distinct from isolates circulating in poultry farms in South Korea.
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The complete coding sequences of four avian influenza A viruses (two H7N7, one H7N1, and one H9N2) circulating in wild waterfowl in Belgium from 2009 to 2012 were determined using Illumina sequencing. All viral genome segments represent viruses circulating in the Eurasian wild bird population.
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