Off-campus South Dakota State University users: To download campus access theses, please use the following link to log into our proxy server with your South Dakota State University ID and password.

Non-South Dakota State University users: Please talk to your librarian about requesting this thesis through interlibrary loan.

Document Type

Thesis - University Access Only

Award Date


Degree Name

Master of Science (MS)


Wildlife and Fisheries Science

First Advisor

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.