Rangeland Ecology & Management

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Resilience of Willow Stems After Release From Intense Elk Browsing
Author
Baker, Bruce W.
Peinetti, H. Raul
Coughenour, Michael B.
Publisher
Society for Range Management
Publication Year
2005-11-01
Body

The resilience of willow (Salix monticola Bebb, Salix geyeriana Anderss., Salix planifolia Pursh) stems released from intense elk (Cervus elaphus) browsing in Rocky Mountain National Park, Colorado, was quantified in 1998 with a retrospective study that compared biomass, number, and length of segments on willow stems located inside (protected) and outside (browsed) elk exclosures. Segment biomass increased each year after protection by about 3-12 g year-1 on browsed stems and 10-27 g year-1 on protected stems. The number of segments on stems was similar for browsed and protected stems in the first 2 years after exclusion but differed in the next 3 years, when they increased exponentially on protected stems. Nearly 80% of segments on browsed stems were < 5 cm in length in 1994-1997, which caused stems to develop a short-hedged morphology. Protected stems had more long segments and fewer short segments than browsed stems for the first 3 years, but then increased their number of short segments as stems became tall and bushy. Thus, evidence suggests short-hedged willow stems are highly resilient and can rapidly recover height and vigor after protection from intense elk browsing.  The Rangeland Ecology & Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020 Legacy DOIs that must be preserved: 10.2458/azu_rangelands_v58i6_coughenour

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2111/05-043R.1
Additional Information
Baker, B. W., Peinetti, H. R., & Coughenour, M. B. (2005). Resilience of willow stems after release from intense elk browsing. Rangeland Ecology & Management, 58(6), 575-581.
IISN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/643383
Journal Volume
58
Journal Number
6
Journal Pages
575-581
Journal Name
Rangeland Ecology & Management
Keywords
alternative stable states
Cervus elaphus
herbivory
Rocky Mountain National Park
Salix
stem morphology