Greater sage‐grouse habitat selection varies across the marginal habitat of its lagging range margin

dc.contributor.authorBeers, Aidan T.
dc.contributor.authorFrey, Shandra N.
dc.date.accessioned2022-12-01T23:40:27Z
dc.date.available2022-12-01T23:40:27Z
dc.date.issued2022-07
dc.description.abstractStudying wildlife–habitat relationships at the edges of their range can provide valuable insights into the environmental factors limiting wildlife distributions and most likely to drive extirpations and range shifts in response to landscape change. Yet the relative impact of those factors is likely different along the range margin, so it is important to identify the limitations to suitable habitat at both regional and local scales. Some of the most drastic impacts of large-scale landscape changes in North America have occurred and are forecasted in the sagebrush steppe ecosystems, where species unable to seek new habitat in the fragmented landscape will be vulnerable to climatic extremes, vegetation community shifts, and anthropogenic land use change. One of the species likely under major threat from landscape changes is the greater sage-grouse (Centrocercus urophasianus), a sagebrush obligate with habitat constraints that make it susceptible to habitat loss impacts as sagebrush systems contract and fragment at their southern range margin, already naturally fragmented. In this study, we evaluated factors of topography and land cover directly impacting habitat selection by sage-grouse in four study areas along their lagging range edge. We used >116,000 GPS locations from >90 grouse across four study areas in southern Utah and Nevada from 2014 to 2020 in habitat selection analyses using random forest models. Our results showed that sage-grouse exploit topography and sagebrush cover, possibly to break predator sight lines and moderate the risk posed by avian predators using tree perches, complicating the effects of tree cover and conifer encroachment into sagebrush habitat. We found similar trends across all four study areas, suggesting sage-grouse along the southern range margin face similar limitations. However, the effects were nonlinear and varied—models trained in one study area were only moderately successful at predicting selection in others. The local idiosyncrasies along this southern range margin indicate a need for place-based conservation for sage-grouse and other potentially imperiled species. Incorporating new understandings of local impacts will refine regional and range-wide models and support efforts to effectively create habitat and plan for range shifts by vulnerable species in response to environmental change.en_US
dc.identifier.citationBeers, Aidan T., andShandra N. Frey. 2022.“Greater Sage-GrouseHabitat Selection Varies across the MarginalHabitat of Its Lagging Range Margin.”Ecosphere13(7): e4146.https://doi.org/10.1002/ecs2.4146en_US
dc.identifier.issn2150-8925
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/17427
dc.language.isoen_USen_US
dc.publisherWileyen_US
dc.rightscc-byen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectCentrocercus urophasianusen_US
dc.subjectGreat Basinen_US
dc.subjecthabitat selectionen_US
dc.subjectrandom foresten_US
dc.subjectrange marginsen_US
dc.subjectsagebrush steppeen_US
dc.subjectsage-grouseen_US
dc.subjectused-availableen_US
dc.titleGreater sage‐grouse habitat selection varies across the marginal habitat of its lagging range marginen_US
dc.typeArticleen_US
mus.citation.extentlastpage17en_US
mus.citation.issue7en_US
mus.citation.journaltitleEcosphereen_US
mus.citation.volume13en_US
mus.data.thumbpage4en_US
mus.identifier.doi10.1002/ecs2.4146en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentEcology.en_US
mus.relation.universityMontana State University - Bozemanen_US

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