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Yellowstone's Destabilized EcosystemElk Effects, Science, and Policy Conflict$
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Print publication date: 2006

Print ISBN-13: 9780195148213

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780195148213.001.0001

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Influences on Ecosystem Function I: Erosion

Influences on Ecosystem Function I: Erosion

(p.215) 11 Influences on Ecosystem Function I: Erosion
Yellowstone's Destabilized Ecosystem

Frederic H. Wagner

Richard B. Keigley

Oxford University Press

Early park accounts report significant soil erosion with the build-up of the elk herd, and comment that the original nature of the topsoil mantle would never be known. Observations of surface rock pediments and inside-outside exclosure studies of soil erosion show increased levels on the outside just since exclosure construction. Streambank research and lichenometric studies show elevated bank sloughing in the northern range where bank vegetation has been eliminated.

Keywords:   topsoil, surface rock pediments, erosion, exclosure studies, lichenometry, streambank sloughing

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