Evaluation of Waterfowl Production Areas in Wisconsin
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Page : 36 pages
File Size : 46,30 MB
Release : 1982
Category : Waterfowl
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Author :
Publisher :
Page : 36 pages
File Size : 46,30 MB
Release : 1982
Category : Waterfowl
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Author : U.S. Fish and Wildlife Service. Office of River Basin Studies
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Page : 142 pages
File Size : 14,75 MB
Release : 1955
Category : Waterfowl
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Page : 920 pages
File Size : 39,46 MB
Release : 1958
Category : Wildlife conservation
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Page : 120 pages
File Size : 32,13 MB
Release : 1995
Category : Horicon Marsh (Wis.)
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Page : 308 pages
File Size : 16,89 MB
Release : 1950
Category : Waterfowl
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Author : Joseph J. Kerekes
Publisher : Springer Science & Business Media
Page : 513 pages
File Size : 21,98 MB
Release : 2012-12-06
Category : Science
ISBN : 9401111286
Birds are an integral part of most freshwater ecosystems (lakes, rivers, wetlands) but their role in the trophic dynamics of these water bodies has often been overlooked. As a conspicuous part of the biota of water bodies, aquatic birds are indicators of their trophic state both in terms of species composition (quality) as well as occupancy and breeding (quantity). Birds may also influence the trophic state of a water body by importing nutrients (.e.g. resident or migrating birds feeding on adjacent watersheds or the sea). Because of anthropogenic activities, predation or their mobility, birds may not utilize otherwise suitable aquatic habitat. These factors complicate the relationship between aquatic bird production and the trophic status of habitats. As a consequence, the role of aquatic birds in freshwater ecosystems has usually been ignored. This volume contains a wide range of papers selected from those presented at the symposium and reviewed.
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Page : 290 pages
File Size : 47,24 MB
Release : 1983
Category : Government publications
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Page : 252 pages
File Size : 17,38 MB
Release : 1981
Category : Forests and forestry
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Author : Samuel D. Robbins
Publisher : Univ of Wisconsin Press
Page : 730 pages
File Size : 27,43 MB
Release : 1991
Category : Nature
ISBN : 9780299102609
As initially planned in 1939 by Owen J. Gromme, then curator of birds at the Milwaukee Public Museum, Wisconsin Birdlife would not only describe and document every species of bird known to have visited this state, but would also depict each species with his own original paintings. During the next two decades, Gromme concentrated primarily on the latter, resulting in the separate publication in 1963 of his now classic Birds of Wisconsin. Work on the present volume was assumed in the late 1960s by Samuel D. Robbins, whose labors of more than 20 years give us a veritable encyclopedia of the state's ornithological knowledge. A complement and supplement to field guides, picture books, and recordings, the book is designed to enlarge the reader's understanding and appreciation of statewide history, abundance, and habitat preference of every species reliably recorded in Wisconsin. The volume opens with a summary of the ornithological history of the state and an exposition of its ecological setting. The heart of Wisconsin Birdlife ensues: detailed accounts of nearly 400 species, with information on status (population and distribution), habitat, migration dates, breeding data, and wintering presence, followed by extensive discussion and commentary. Dr. James Hall Zimmerman, Senior Lecturer in Landscape Architecture at the University of Wisconsin-Madison, provides a special discussion of bird habitats for the book. In addition, Wisconsin Birdlife features a comprehensive status and seasonal distribution chart, a detailed habitat preference chart, and an exhaustive bibliography. The ultimate resource, Wisconsin Birdlife belongs within easy reach of everyone from armchair appreciators and casual birdwatchers to ardent birders and professional ornithologists.
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Page : 166 pages
File Size : 20,97 MB
Release : 2012
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