Northern Prairie Wildlife Research Center report to central flyway council : Lewis M. Cowardin, Douglas H. Johnson, Terry L. Shaffer, Donald W. Sparling, Harvey W. Miller and Joe Gabig. simulation of potential results of implementing the central flyway mallard management plan /
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TextPublication details: Bismark, ND : 1984. U.S. Fish and Wildlife Service,Description: 31 p. : ill. , map ; 28 cmOnline resources: Abstract: The Central Flyway is developing a mallard management plan with the purpose of substantially increasing recruitment and fall flight from the major mallard-producing states in the flyway. This report gives results of simulating the implementation of that plan. The current plan includes six treatments: (1) install 60,000 nesting structures, (2) delay cutting of alfalfa on 5 percent of existing alfalfa acreage (3) convert 25 percent of stubble acres currently plowed and planted in small grain to summer fallow, (4) convert 20 percent of acres currently planted in small grain to no-till winter wheat, (5) fence 1,000, 40-acre plots with predator-resistant electric fencing, and (6) construct 1,200, 0.14-acre nesting islands. The simulation was accomplished with a series of models recently developed at Northern Prairie Wildlife Research Center (NPWRC).New methods were developed for simulating results of nesting structures and islands. Additional data on nest survival rates, including those o
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Includes bibliographical references (p. 30-31).
The Central Flyway is developing a mallard management plan with the purpose of substantially increasing recruitment and fall flight from the major mallard-producing states in the flyway. This report gives results of simulating the implementation of that plan. The current plan includes six treatments: (1) install 60,000 nesting structures, (2) delay cutting of alfalfa on 5 percent of existing alfalfa acreage (3) convert 25 percent of stubble acres currently plowed and planted in small grain to summer fallow, (4) convert 20 percent of acres currently planted in small grain to no-till winter wheat, (5) fence 1,000, 40-acre plots with predator-resistant electric fencing, and (6) construct 1,200, 0.14-acre nesting islands. The simulation was accomplished with a series of models recently developed at Northern Prairie Wildlife Research Center (NPWRC).New methods were developed for simulating results of nesting structures and islands. Additional data on nest survival rates, including those o