Title: Forest productivity predicts invertabrate biomass and ovenbird (Seriurus Aurocapillus) reproduction in Appalachian landscapes
Author: Seagle, Steven W.; Sturtevant, Brian R.
Source: Ecology, 86(6), 2005, pp. 1531?1539.
Publication Series: Scientific Journal (JRNL)
Description: Forest-floor detrital food webs are sustained by annual inputs of leaf fall. However, it is unknown whether this bottom-up effect extends to vertebrates feeding on the detrital food web. We hypothesized that reproductive success of Ovenbirds (Seiurus aurocapillus L.) is a function of acroinvertebrate biomass within the detrital food web, and that both macroinvertebrate biomass and Ovenbird reproduction can be predicted from forest productivity (measured by site index). We found that across diverse topography within two physiographic provinces of the central Appalachian Mountains macroinvertebrate biomass is correlated with forest site index. Furthermore, Ovenbird reproduction is a significant, positive function of both site index and macroinvertebrate biomass. We conclude that bottom-up effects of forest productivity propagate though the detrital food web to secondary/tertiary vertebrate predators. Thus site productivity is an effective tool for predicting landscape-scale variation in avian productivity and the strength of bottom-up effects within the forest food web.
Keywords: Appalachian Plateau, bottom-up control, deciduous forest, food web structure, invertebrate biomass, Ovenbird reproduction, Ridge-and-Valley province, site index, topography
- 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, firstname.lastname@example.org if you notice any errors which make this publication unusable.
XML: View XML
Seagle, Steven W.; Sturtevant, Brian R. 2005. Forest productivity predicts invertabrate biomass and ovenbird (Seriurus Aurocapillus) reproduction in Appalachian landscapes. Ecology, 86(6), 2005, pp. 1531?1539.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility