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The Center for Native Grasslands Management

Title: The Conservation Reserve Program and northern bobwhite population trends in Illinois
Year: 1994
Author(s): Roseberry, J. L., David, L. M.
Source Title: Transactions of the Illinois State Academy of Science
Source Type: Journal
pages: 61-70
Original Publication: http://  
Abstract: We examined three indexes of Northern Bobwhite abundance in Illinois at various geographic scales to determine possible relationships with the Conservation Reserve Program. Over 256,000 ha were enrolled in the CRP during the first 9 signup periods (1986-1990). About 87% of this land was in CP-1 vegetation (introduced cool-season grasses and legumes). Male bobwhite call counts in some parts of the state may have been positively related to amounts of CRP land. However, there was no strong evidence that autumn population densities increased as a result of the program. Positive CRP effects on local bobwhite habitat in some areas were probably offset by neutral or negative effects in others. We discuss possible reasons why potential benefits of the CRP for Northern Bobwhite have not been fully realized.