Surveys Of Calling Amphibians In North Dakota
Funding for this investigation was provided by the Grasslands Ecosystem Initiative and the Inventory and Monitoring Program of the National Biological Service (now Biological Resources Division of the U.S. Geological Survey). We are grateful to Larry D. Igl for logistical assistance, N. H. Euliss, Jr., R. S. Ferguson, and B. E. Smith for photographs, B. R. Euliss for graphics help, B. E. Smith for reviewing the report, and D. T. Burchill and S. C. Erstad for preparing this report for serving on the World Wide Web.
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