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Thesis - University Access Only
Master of Science (MS)
Wildlife and Fisheries Science
Leigh H. Fredrickson
weather, seasons, wetland, habitat mangement, shorebirds, minnesota
The purpose of this study was to compare wetland availability and relative value of private agricultural fields and CRP wetlands to intensively managed impoundments at Agassiz National Wildlife Refuge for migratory shorebirds between seasons and years with variable weather conditions. Habitat conditions between 2002, a wet year, and 2003, a dry year, varied considerably. The percent of flooded off-refuge wetlands varied between 100% in spring 2002 to a low of 5% in fall 2003. As a result of these variable weather conditions, a variety of wetlands were necessary to support migrating shorebirds. Overall, the majority of shorebirds were observed on the refuge. In the drier year, over 99% of the birds observed were on the refuge. Shorebirds were observed on off-refuge wetlands during early spring migration 2002, before the refuge was able to lower their water levels and when the refuge was flooded during summer and early fall 2002.
Library of Congress Subject Headings
Shore birds -- Habitat -- Minnesota
Shore birds -- Migration -- Minnesota
Shore birds -- Minnesota -- Agassiz National Wildlife Refuge
Wetlands -- Minnesota
Minnesota -- Climate
Includes bibliographical references (page 151-162)
Number of Pages
South Dakota State University
Copyright © 2006 Kari Ann Ranallo All rights reserved.
Ranallo, Kari Ann, "The Effects of Weather on Wetland Habitat Conditions and Shorebirds During Spring and Fall Migration in Northwest Minnesota" (2006). Theses and Dissertations. 369.