Avian nest success in midwestern forests fragmented by agriculture
Condor
- By:
- M.G. Knutson , M.A. Friberg , G.J. Niemi , and W.E. Newton
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Abstract
Knutson et al. (2004) report the results of an avian nest success study conducted to investigate how forest-bird nest success varied by nest location and type as well as by landscape context from 1996 to 1998 in an agricultural region of southwestern Minnesota, and southwestern Wisconsin, and northeastern Iowa. The authors found an overall Mayfield adjusted nest success of 48%, 82% for cavity-nesting species, and 42% for cup-nesting species. Common species varied from 23% for American Redstart (Setophaga ruticilla) to 43% for the Eastern Wood-Pewee (Contopus virens). Nest success was lowest for open-cup nesters, species that reject Brown-headed Cowbird (Molothrus ater) eggs, species that next near forest edges, and Neotropical migrants. These tendencies were consistent across the years of the study. Assessments of nest success considering surrounding landscape metrics indicated that forest area may not be a strong indicator of nest success in landscapes where all the available forests are fragmented.Additional publication details
- Publication type:
- Article
- Publication Subtype:
- Journal Article
- Title:
- Avian nest success in midwestern forests fragmented by agriculture
- Series title:
- Condor
- Volume:
- 106
- Issue:
- 1
- Year Published:
- 2004
- Language:
- English
- Description:
- p. 116-120
- Larger Work Type:
- Article
- Larger Work Subtype:
- Journal Article
- Larger Work Title:
- Condor
- First page:
- 116
- Last page:
- 120