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dc.contributor.authorLarson, Christian D.
dc.contributor.authorLehnhoff, Erik A.
dc.contributor.authorNoffsinger, Chance
dc.contributor.authorRew, Lisa J.
dc.date.accessioned2018-07-16T19:51:44Z
dc.date.available2018-07-16T19:51:44Z
dc.date.issued2017-12
dc.identifier.citationLarson, Christian D. , Erik A. Lehnhoff, Chance Noffsinger, and Lisa J. Rew. "Competition between cheatgrass and bluebunch wheatgrass is altered by temperature, resource availability, and atmospheric CO2 concentration." Oecologia (December 2017): 1-14. DOI: 10.1007/s00442-017-4046-6.en_US
dc.identifier.issn1432-1939
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14645
dc.description.abstractGlobal change drivers (elevated atmospheric CO2, rising surface temperatures, and changes in resource availability) have significant consequences for global plant communities. In the northern sagebrush steppe of North America, the invasive annual grass Bromus tectorum (cheatgrass) is expected to benefit from projected warmer and drier conditions, as well as increased CO2 and nutrient availability. In growth chambers, we addressed this expectation using two replacement series experiments designed to test competition between B. tectorum and the native perennial bunchgrass Pseudoroegneria spicata. In the first experiment, we tested the effects of elevated temperature, decreased water and increased nutrient availability, on competition between the two species. In the second, we tested the effects of elevated atmospheric CO2 and decreased water availability on the competitive dynamic. In both experiments, under all conditions, P. spicata suppressed B. tectorum, though, in experiment one, warmer and drier conditions and elevated nutrient availability increased B. tectorum\'s competitiveness. In experiment two, when grown in monoculture, both species responded positively to elevated CO2. However, when grown in competition, elevated CO2 increased P. spicata\'s suppressive effect, and the combination of dry soil conditions and elevated CO2 enhanced this effect. Our findings demonstrate that B. tectorum competitiveness with P. spicata responds differently to global change drivers; thus, future conditions are unlikely to facilitate B. tectorum invasion into established P. spicata communities of the northern sagebrush steppe. However, disturbance (e.g., fire) to these communities, and the associated increase in soil nutrients, elevates the risk of B. tectorum invasion.en_US
dc.description.sponsorshipMontana State University; United States Department of Agriculture (MONB00363, NMLehnhoff-17H)en_US
dc.language.isoenen_US
dc.rightsCC BY 4.0, This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleCompetition between cheatgrass and bluebunch wheatgrass is altered by temperature, resource availability, and atmospheric CO2 concentrationen_US
dc.typeArticleen_US
mus.citation.extentfirstpage855en_US
mus.citation.extentlastpage868en_US
mus.citation.issue3en_US
mus.citation.journaltitleOecologiaen_US
mus.citation.volume186en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1007/s00442-017-4046-6en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage8en_US


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CC BY 4.0, This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Except where otherwise noted, this item's license is described as CC BY 4.0, This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.

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