EcoService Models Library (ESML)

Document: Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system (Doc-373)

373
Authors
Cawardin, L. M., T. L. Shaffer, and P. M. Arnold
Year
1995
Title
Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system
Document Type
Report
Report Number
2
Place Published
Washington D. C.
Publisher
U.S. Department of the Interior, National Biological Service
Abstract
During 1987-90, we used high-altitude photography, aerial videography, counts, and models to estimate sizes of breeding populations of dabbling ducks (Anatinae) and duck production and to identify duck habitat on U.S. Fish and Wildlife Service land and easements and on private land in the prairie pothole region of the United States. The study area contained about 3.1 million wetland basins (28,490 km2). Wetland area (ha per km2) was highest on service-owned land; wetland-basin density was greatest on service easements…
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