NDLI: Landscape forest cover and edge effects on songbird nest predation vary by nest predator

Content Provider	Springer Nature Link
Author	Cox, W. Andrew Thompson, Frank R. Faaborg, John
Copyright Year	2012
Abstract	Rates of nest predation for birds vary between and within species across multiple spatial scales, but we have a poor understanding of which predators drive such patterns. We video-monitored nests and identified predators at 120 nests of the Acadian Flycatcher (Empidonax virescens) and the Indigo Bunting (Passerina cyanea) at eight study sites in Missouri and Illinois, USA, during 2007–2010. We used an information-theoretic approach to evaluate hypotheses concerning factors affecting predator-specific and overall rates of predation at landscape, edge, and nest-site scales. We found support for effects of landscape forest cover and distance to habitat edge. Predation by Brown-headed Cowbirds (Molothrus ater) increased, and predation by rodents decreased as landscape forest cover decreased. Predation by raptors, rodents, and snakes increased as the distance to forest edges decreased, but the effect was modest and conditional upon the top-ranked model. Despite the predator-specific patterns we detected, there was no support for these effects on overall rates of predation. The interactions between breeding birds, nest predators, and the landscapes in which they reside are scale-dependent and context-specific, and may be resistant to broad conceptual management recommendations.
Starting Page	659
Ending Page	669
Page Count	11
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	27
Issue Number	5
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-02-04
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Cause-specific mortality Forest birds Nest survival Passerines Plant Sciences Forestry Management Plant Ecology Landscape Ecology Ecology Forestry
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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