One-sided edge responses in forest birds following restoration treatments

Battin, James and Sisk, Thomas D (2011) One-sided edge responses in forest birds following restoration treatments. Condor, 113 (3). pp. 501-510. ISSN 1938-5129

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Abstract

Abstract. We studied the effects of the edge between two forest types on the probability of occurrence of seven species of birds and found that four responded to the edge on only one side. Over 4 years, we measured the responses of forest birds to the edge between ponderosa pine forest undergoing restoration and neighboring untreated stands. Of the seven species analyzed, one occurred most frequently near the edge. Of the remaining six, none responded to the edge in the treated forest, but four responded in the untreated forest. Relatively few studies have examined abundance changes on both sides of an edge between distinct habitats that support similar bird communities, and predictive models of edge effects used for mapping animal responses to habitat change often assume that animal abundance will change on both sides of this sort of edge, declining near the edge in the habitat in which the species is most abundant and increasing near the edge in the habitat in which the species is less abundant. One-sided edge effects, such as those we have documented, may lead to markedly different predictions of the effects of habitat change on bird abundance in heterogeneous landscapes. , Resumen. Estudiamos los efectos de borde entre dos tipos de bosque en la probabilidad de ocurrencia de siete especies de aves y encontramos que cuatro respondieron al borde de un solo lado. Durante cuatro años medimos las respuestas de aves de bosque al borde entre un bosque de pino ponderosa bajo restauración y rodales colindantes sin tratar. De las siete especies analizadas, una presentó mayor frecuencia cerca del borde. De las seis restantes, ninguna respondió al borde en el bosque tratado, pero cuatro mostraron una respuesta al bosque sin tratar. Relativamente pocos estudios han examinado los cambios en la abundancia en ambos lados de un borde entre habitats distintos que albergan comunidades de aves similares. Además, los modelos predictivos de efecto de borde utilizados para mapear las respuestas de animales al cambio de hábitat a menudo asumen que la abundancia animal cambiará en ambos lados de este tipo de borde, disminuyendo cerca del borde en el hábitat en el cual la especie es más abundante e incrementado cerca del borde en el habitat en el cual la especie es menos abundante. Los efectos de borde de un solo lado, tales como los que documentamos, pueden llevar a predicciones marcadamente diferentes de los efectos de cambio de habitat en la abundancia de aves en paisajes heterogéneos.

Item Type:	Article
Publisher’s Statement:	© 2011 The Cooper Ornithological Society.
ID number or DOI:	10.1525/cond.2011.100036
Keywords:	Abundance; Aves; Biology--Ornithology; Copper Technical Reference Library; edge effect; Forests; Habitat; habitat changes; Landscape; M3 1010:Issues in Sustainable Development; Pinus ponderosa; prediction models; Sustainability Science Abstracts; abundance; Boundaries; Ecological restoration; Ecosystems; edge effects; Edge effects (Ecology); Forest birds; forest restoration; framework; Habitat (Ecology); habitat edges; landscape; mixed model logistic regression; model; Ponderosa pine forest; ponderosa pine forests; predictive model; research; selection; United States
Subjects:	Q Science > QH Natural history > QH301 Biology S Agriculture > SD Forestry
NAU Depositing Author Academic Status:	Faculty/Staff
Department/Unit:	College of Engineering, Forestry, and Natural Science > School of Earth Sciences and Environmental Sustainability
Date Deposited:	30 Sep 2015 17:44
URI:	http://openknowledge.nau.edu/id/eprint/525

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