Impact of the conservation reserve program on duck recruitment in the U.S. prairie pothole region

Article Abstract:

Research shows that the US Dept. of Agriculture's Conservation Reserve Program has had a positive impact on duck population recruitment in the nation's northern midwest region. Studies conducted between 1992 and 1997 indicate that recruitment and nest success are 30% and 46% higher, respectively, with a total of 12.4 mil new recruits to fall flight during this period.

North Dakota, Montana, South Dakota, Statistical Data Included, Evaluation, Environmental policy, Habitats, Wildlife conservation, United States. Department of Agriculture, Wildlife habitat improvement

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Determinants of mallard and gadwall nesting on constructed islands in North Dakota

Article Abstract:

The process and benefits of constructed islands for secured nesting cover for mallard and gadwall ducks in North America is discussed.

United States, Methods, Usage, Protection and preservation, Birds, Protection of, Bird conservation, Mallard, Constructed wetlands

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Factors associated with duck nest success in the Prairie Pothole region of Canada

Article Abstract:

The populations of several ducks in the Prairie Pothole region of Canada were studied during a four-year period ending in 1985. Nest initiation for mallards and pintail ducks were twice as long as those of fadwalls, blue-winged teals and shovelers. Moreover, predation accounted for 72% of nest destructions for mallards, gadwall, blue-winged teal and shovelers and 65% for pintail ducks. In addition, nest success rates varied significantly in terms of geography and time-frame.

Research, Canada, Environmental aspects, Animal populations

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