Disturbance type influences resilience and resistance to Bromus tectorum invasion in the sagebrush steppe

dc.contributor.authorSeipel, Tim F.
dc.contributor.authorRew, Lisa J.
dc.contributor.authorTaylor, Kimberley T.
dc.date.accessioned2019-01-11T17:35:19Z
dc.date.available2019-01-11T17:35:19Z
dc.date.issued2018-03
dc.description.abstractQuestion: How does type of disturbance alter plant community composition when an invasive species with high intrinsic population growth rate is present? The sage-brush steppe is a cold semi-arid steppe dominated by the native shrub Artemisia tri-dentata Nutt., native bunchgrasses, and has been invaded by the non- native winter annual Bromus tectorum L.Location: Sagebrush steppe, Montana, USA.Methods: We assessed the effect of fire and soil disturbance, due to bulldozing to create a firebreak, on the resilience of plant communities and their resistance to inva-sion by B. tectorum. Plant species richness and species composition were monitored for 3 years at two sites post-fire and firebreak construction.Results: Burned plant communities were resilient and had similar native grass cover and native species richness compared with the unburned sites after 3 years. Soil dis-turbance from firebreak construction resulted in species composition that was dis-tinct and had lower native grass cover. Type of disturbance also affected the community’s resistance to B. tectorum. Bromus tectorum cover was similar in burned and unburned areas, but increased up to three times and remained high where soil disturbance occurred, suggesting a shift to an alternative state.Conclusion: In this northern portion of the sagebrush steppe, communities with na-tive plant cover were resilient to fire but not soil disturbance, which facilitated B. tec-torum increase and a transition to an alternative state. In areas of high native plant cover, management tactics should avoid soil disturbance.en_US
dc.description.sponsorshipMontana Noxious Weed Trust Funden_US
dc.identifier.citationSeipel, Tim, Lisa J. Rew, Kimberley T. Taylor, Bruce D. Maxwell, and Erik A. Lehnhoff. “Disturbance Type Influences Plant Community Resilience and Resistance to Bromus Tectorum Invasion in the Sagebrush Steppe.” Edited by Borja Jiménez-Alfaro. Applied Vegetation Science 21, no. 3 (March 13, 2018): 385–394. doi:10.1111/avsc.12370.en_US
dc.identifier.issn1654-109X
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/15119
dc.language.isoenen_US
dc.rightsCC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleDisturbance type influences resilience and resistance to Bromus tectorum invasion in the sagebrush steppeen_US
dc.typeArticleen_US
mus.citation.extentfirstpage385en_US
mus.citation.extentlastpage394en_US
mus.citation.issue3en_US
mus.citation.journaltitleEcosphereen_US
mus.citation.volume21en_US
mus.data.thumbpage6en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1111/avsc.12370en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US

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