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dc.contributor.authorFalkowski, M.J.
dc.contributor.authorEvans, J.S.
dc.contributor.authorNaugle, D.E.
dc.contributor.authorHagen, C.A.
dc.contributor.authorCarleton, S.A.
dc.contributor.authorMaestas, J.D.
dc.contributor.authorKhalyani, A.H.
dc.contributor.authorPoznanovic, A.J.
dc.contributor.authorLawrence, A.J.
dc.date.accessioned2023-01-12T00:05:39Z
dc.date.available2023-01-12T00:05:39Z
dc.date.issued2017
dc.identifier.citationFalkowski, M. J., Evans, J. S., Naugle, D. E., Hagen, C. A., Carleton, S. A., Maestas, J. D., Khalyani, A. H., Poznanovic, A. J., & Lawrence, A. J. (2017). Mapping tree canopy cover in support of proactive prairie grouse conservation in western North America. Rangeland Ecology & Management, 70(1), 15–24.
dc.identifier.issn1550-7424
dc.identifier.doi10.1016/j.rama.2016.08.002
dc.identifier.urihttp://hdl.handle.net/10150/667408
dc.description.abstractInvasive woody plant expansion is a primary threat driving fragmentation and loss of sagebrush (Artemisia spp.) and prairie habitats across the central andwestern United States. Expansion of native woody plants, including conifer (primarily Juniperus spp.) and mesquite (Prosopis spp.), over the past century is primarily attributable to wildfire suppression, historic periods of intensive livestock grazing, and changes in climate. To guide successful conservation programs aimed at reducing top-down stressors, we mapped invasive woody plants at regional scales to evaluate landscape level impacts, target restoration actions, and monitor restoration outcomes. Our overarching goal was to produce seamless regional products across sociopolitical boundaries with resolution fine enough to depict the spatial extent and degree of woody plant invasion relevant to greater sage-grouse (Centrocercus urophasianus) and lesser prairie-chicken (Tympanuchus pallidicinctus) conservation efforts. We mapped tree canopy cover at 1-m spatial resolution across an 11-state region (508 265 km2). Greater than 90% of occupied lesser prairie-chicken habitat was largely treeless for conifers (<1% canopy cover), whereas > 67% was treeless for mesquite. Conifers in the higher canopy cover classes (16-50% and >50% canopy cover) were scarce (<2% and 1% canopy cover), as was mesquite (<5% and 1% canopy cover). Occupied habitat by sagegrouse was more variable but also had a relatively large proportion of treeless areas (=71, SE=5%). Lowto moderate levels of conifer cover (1-20%) were fewer (= 23, SE = 5%) as were areas in the highest cover class (>50%; = 6, SE = 2%). Mapping indicated that a high proportion of invading woody plants are at a low to intermediate level. Canopy cover maps for conifer and mesquite resulting from this study provide the first and most geographically complete, high-resolution assessment of woody plant cover as a top-down threat to western sage-steppe and prairie ecosystems.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rights© 2017 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjecteastern redcedar
dc.subjectencroachment
dc.subjectjuniper
dc.subjectlesser prairie-chicken
dc.subjectmesquite
dc.subjectremote sensing
dc.subjectsage grouse
dc.titleMapping tree canopy cover in support of proactive prairie grouse conservation in western North America
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.volume70
dc.source.issue1
dc.source.beginpage15
dc.source.endpage24
refterms.dateFOA2023-01-12T00:05:40Z


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© 2017 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as © 2017 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).