Skip to Main Content
Cowbird Distribution at Different Scales of Fragmentation: Trade-offs Between Breeding and Feeding OpportunitiesAuthor(s): Therese M. Donovan; Frank r. Thompson III; John R. Faaborg
Source: Ecology and Management of Cowbirds and Their hosts. p. 255-264. (2000)
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: View PDF (1.72 MB)
DescriptionThe distribution of Brown-headed Cowbirds should reflect the distribution of their feeding (agricultural or grassy areas) and breeding (host) resources. Because an increase in one resource (e.g., agricultural areas) is often at the expense of the second resource (forest hosts), relationships between cowbird abundance, forest area, and number of hosts may reflect this trade-off. We studied cowbird distribution and abundance in the extensively forested Missouri Ozarks and fragmented central Missouri. Cowbirds were more abundant on fragments than on unfragmented Ozark study areas, even though hosts were more abundant in the Ozarks. In the Ozarks, there was no relationship between cowbird and host abundance, possibly because cowbirds there were limited more by feeding habitat than by hosts. In contrast, cowbird abundance on fragments was positively related to host abundance, possibly because cowbirds there were limited more by hosts than by food.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationDonovan, Therese M.; Thompson III, Frank r.; Faaborg, John R. 2000. Cowbird Distribution at Different Scales of Fragmentation: Trade-offs Between Breeding and Feeding Opportunities. Ecology and Management of Cowbirds and Their hosts. p. 255-264. (2000)
KeywordsBrown-headed cowbirds, Missouri Ozarks, fragmentation, breeding, feeding
- Morning Nest Arrivals in Cowbird Hosts: their Role in Aggression, Cowbird Recognition, and Host Response to Parasitism
- Temporal and Spatial patterns of Breeding Brown-Headed Cowbirds in the Midwestern United States
- Management implications of cowbird parasitism on neotropical migrant songbirds
XML: View XML