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dc.contributor.authorLongland, W. S.
dc.contributor.authorBateman, S. L.
dc.date.accessioned2020-09-18T05:05:02Z
dc.date.available2020-09-18T05:05:02Z
dc.date.issued2002-11-01
dc.identifier.citationLongland, W. S., & Bateman, S. L. (2002). the ecological value of shrub islands on disturbed sagebrush rangelands. Journal of Range Management, 55(6), 571-575.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4004000
dc.identifier.doi10.2458/azu_jrm_v55i6_longland
dc.identifier.urihttp://hdl.handle.net/10150/643701
dc.description.abstractUndisturbed plant communities dominated by shrubs or trees are often left isolated within landscapes otherwise devoid of woody vegetation following large-scale disturbances such as wildfires. We discuss potential ecological benefits associated with these terrestrial vegetation "islands", giving special attention to islands in disturbed shrub systems dominated by big sagebrush (Artemisia tridentata Nutt.). Shrub habitat islands provide important refugia for plant and animal species that are associates of shrubsf?rom those that generally require shrub cover to those that have evolved obligate symbioses with a particular shrub species. Even if islands are not able to support breeding populations, they may provide essential temporary habitat for maintaining a plant or animal metapopulation or for dispersing animals. Habitat islands are likely to enhance local biological diversity of plants and animals, because they harbor species that are lacking in disturbed areas, and because abrupt structural changes from disturbed to undisturbed vegetation provide a habitat mosaic that facilitates high levels of species turnover. A previous study confirmed that small mammal species richness in sagebrush islands is intermediate to the high species richness in undisturbed sagebrush "mainlands" and the low richness associated with burned sagebrush habitats. In re-analyzing some of the data from the latter study, we found that small mammal richness in sagebrush islands increases with time since the surrounding habitat burned. Finally, habitat islands provide more evenly dispersed seed sources for re-establishment of decimated vegetation within disturbed areas, and they may harbor animal species that provide seed dispersal services. Thus, they should accelerate vegetation recovery after disturbance. Managers, fire crews, and others who may influence how disturbance patterns affect habitat heterogeneity should be aware of these ecological benefits of habitat islands.
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.subjectbiogeography
dc.subjectPhasianidae
dc.subjectCentrocercus urophasianus
dc.subjectbiodiversity
dc.subjectwildfire management
dc.subjectarid grasslands
dc.subjecthabitats
dc.subjectPurshia tridentata
dc.subjectprediction
dc.subjectspecies diversity
dc.subjectecological succession
dc.subjectfires
dc.subjectfire effects
dc.subjectArtemisia tridentata
dc.subjectplant communities
dc.subjectCalifornia
dc.subjectland restoration
dc.subjectrange management
dc.subjectNevada
dc.subjectrangelands
dc.subjectArtemisia tridentata Nutt.
dc.subjectbiological diversity
dc.subjectdisturbance
dc.subjectIsland Biogeography Theory
dc.subjectsuccession
dc.subjectterrestial habitat islands
dc.titleViewpoint: The ecological value of shrub islands on disturbed sagebrush rangelands
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe Journal of Range 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.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume55
dc.source.issue6
dc.source.beginpage571-575
refterms.dateFOA2020-09-18T05:05:03Z


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