You are here: Home
/ Publication Information
Title: Variation in Local-Scale Edge Effects: Mechanisms and landscape Context
Author: Donovan, Therese M.; Jones, Peter W.; Annand, Elizabeth M.; Thompson III, Frank R.;
Source: Ecology. Vol. 78 no. 7.:p. 2064-2075. (1997)
Publication Series: Scientific Journal (JRNL)
Description: Ecological processes near habitat edges often differ from processes away from edges. Yet, the generality of "edge effects" has been hotly debated because results vary tremendously. To understand the factors responsible for this variation, we described nest predation and cowbird distribution patterns in forest edge and forest core habitats on 36 randomly selected plots in three states in the midwestern United States. We tested four hypotheses that may explain the variation and mechanisms responsible for edge effects among the 36 plots: (1) the landscape context, (2) the local predator community, (3) the local bird (host-prey) community, and (4) the nest site microhabitat structure. We used artificial nests baited with quail and clay eggs to determine nest predation patterns and predators and used point count surveys to determine cowbird and host abundance in forest edge and forest core habitats.
Keywords: Brown-headed Cowbirds, edge effects, forest songbirds, habitat landscapes and fragmentation, host-Cowbird relationships, Molothrus ater, nest predation, predator community
- 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.
- This publication may be available in hard copy. 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.
XML: View XML
Donovan, Therese M.; Jones, Peter W.; Annand, Elizabeth M.; Thompson III, Frank R. 1997. Variation in Local-Scale Edge Effects: Mechanisms and landscape Context. Ecology. Vol. 78 no. 7.:p. 2064-2075. (1997)
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility