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Contributions of the Conservation Reserve Program to populations of breeding birds in North Dakota

Wilson Bulletin

By:
and

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Abstract

Previous studies have shown that habitat provided by the Conservation Reserve Program (CRP), a feature of the 1985 farm bill, is used by many birds. The present study quantitatively assesses the importance of the CRP by estimating changes in breeding-bird populations of North Dakota projected if CRP land would revert to cultivation. Of 18 species that were common in CRP or crop fields or both, 12 were more abundant in CRP habitats. Six of these species had suffered significant population declines during 1967-1990, according to the North American Breeding Bird Survey. In contrast, none of the six species that were more common in cropland than in CRP fields had declined significantly. Termination of the Conservation Reserve Program and a return of enrolled land to cultivation is projected to cause population declines in North Dakota exceeding 17% for Sedge wren (Cistothorus platensis), Grasshopper sparrow (Ammodramus savannarum), Savannah Sparrow (Passerculus sandwichensis), Dickcissel (Spiza americana), and Lark Bunting (Calamospiza melanocorys).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Contributions of the Conservation Reserve Program to populations of breeding birds in North Dakota
Series title:
Wilson Bulletin
Volume
107
Issue:
4
Year Published:
1995
Language:
English
Description:
p. 709-718
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Wilson Bulletin
First page:
709
Last page:
718
Number of Pages:
9