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dc.contributor.authorChambers, J. C.
dc.contributor.authorMiller, R. F.
dc.contributor.authorBoard, D. I.
dc.contributor.authorPyke, D. A.
dc.contributor.authorRoundy, B. A.
dc.contributor.authorGrace, J. B.
dc.contributor.authorSchupp, E. W.
dc.contributor.authorTausch, R. J.
dc.date.accessioned2021-03-08T18:40:43Z
dc.date.available2021-03-08T18:40:43Z
dc.date.issued2014-09
dc.identifier.citationChambers, J. C., Miller, R. F., Board, D. I., Pyke, D. A., Roundy, B. A., Grace, J. B., Schupp, E. W., & Tausch, R. J. (2014). Resilience and Resistance of Sagebrush Ecosystems: Implications for State and Transition Models and Management Treatments. Rangeland Ecology & Management, 67(5), 440–454.
dc.identifier.issn0022-409x
dc.identifier.doi10.2111/REM-D-13-00074.1
dc.identifier.urihttp://hdl.handle.net/10150/656980
dc.description.abstractIn sagebrush ecosystems invasion of annual exotics and expansion of piñon (Pinus monophylla Torr. and Frem.) and juniper (Juniperus occidentalis Hook., J. osteosperma [Torr.] Little) are altering fire regimes and resulting in large-scale ecosystem transformations. Management treatments aim to increase resilience to disturbance and enhance resistance to invasive species by reducing woody fuels and increasing native perennial herbaceous species. We used Sagebrush Steppe Treatment Evaluation Project data to test predictions on effects of fire vs. mechanical treatments on resilience and resistance for three site types exhibiting cheatgrass (Bromus tectorum L.) invasion and/or piñon and juniper expansion: 1) warm and dry Wyoming big sagebrush (WY shrub); 2) warm and moist Wyoming big sagebrush (WY PJ); and 3) cool and moist mountain big sagebrush (Mtn PJ). Warm and dry (mesic/aridic) WY shrub sites had lower resilience to fire (less shrub recruitment and native perennial herbaceous response) than cooler and moister (frigid/xeric) WY PJ and Mtn PJ sites. Warm (mesic) WY Shrub and WY PJ sites had lower resistance to annual exotics than cool (frigid to cool frigid) Mtn PJ sites. In WY shrub, fire and sagebrush mowing had similar effects on shrub cover and, thus, on perennial native herbaceous and exotic cover. In WY PJ and Mtn PJ, effects were greater for fire than cut-and-leave treatments and with high tree cover in general because most woody vegetation was removed increasing resources for other functional groups. In WY shrub, about 20% pretreatment perennial native herb cover was necessary to prevent increases in exotics after treatment. Cooler and moister WY PJ and especially Mtn PJ were more resistant to annual exotics, but perennial native herb cover was still required for site recovery. We use our results to develop state and transition models that illustrate how resilience and resistance influence vegetation dynamics and management options. © 2014 The Society for Range Management.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectBromus tectorum invasion
dc.subjectEcological sites
dc.subjectEnvironmental gradients
dc.subjectMechanical treatments
dc.subjectPinon and juniper expansion
dc.subjectPrescribed fire
dc.titleResilience and Resistance of Sagebrush Ecosystems: Implications for State and Transition Models and Management Treatments
dc.typeArticle
dc.typetext
dc.identifier.journalRangeland Ecology & Management
dc.description.collectioninformationThe 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.
dc.eprint.versionFinal published version
dc.source.journaltitleRangeland Ecology & Management
dc.source.volume67
dc.source.issue5
dc.source.beginpage440
dc.source.endpage454
refterms.dateFOA2021-03-08T18:40:43Z


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