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Garbowski M, Johnston DB, Baker DV, Brown CS. Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration. Ecosphere 2021. [DOI: 10.1002/ecs2.3417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Magda Garbowski
- Graduate Degree Program in Ecology Colorado State University 102 Johnson Hall Fort Collins Colorado80523USA
- Department of Agricultural Biology Colorado State University 307 University Ave Fort Collins Colorado80521USA
| | - Danielle B. Johnston
- Colorado Division of Parks and Wildlife 711 Independent Ave Grand Junction Colorado81505USA
| | - Dirk V. Baker
- Campbell Scientific, Inc. 815 W. 1800 N. Logan Utah84321USA
| | - Cynthia S. Brown
- Graduate Degree Program in Ecology Colorado State University 102 Johnson Hall Fort Collins Colorado80523USA
- Department of Agricultural Biology Colorado State University 307 University Ave Fort Collins Colorado80521USA
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2
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Adler PB, Smull D, Beard KH, Choi RT, Furniss T, Kulmatiski A, Meiners JM, Tredennick AT, Veblen KE. Competition and coexistence in plant communities: intraspecific competition is stronger than interspecific competition. Ecol Lett 2018; 21:1319-1329. [PMID: 29938882 DOI: 10.1111/ele.13098] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/11/2018] [Accepted: 05/16/2018] [Indexed: 01/27/2023]
Abstract
Theory predicts that intraspecific competition should be stronger than interspecific competition for any pair of stably coexisting species, yet previous literature reviews found little support for this pattern. We screened over 5400 publications and identified 39 studies that quantified phenomenological intraspecific and interspecific interactions in terrestrial plant communities. Of the 67% of species pairs in which both intra- and interspecific effects were negative (competitive), intraspecific competition was, on average, four to five-fold stronger than interspecific competition. Of the remaining pairs, 93% featured intraspecific competition and interspecific facilitation, a situation that stabilises coexistence. The difference between intra- and interspecific effects tended to be larger in observational than experimental data sets, in field than greenhouse studies, and in studies that quantified population growth over the full life cycle rather than single fitness components. Our results imply that processes promoting stable coexistence at local scales are common and consequential across terrestrial plant communities.
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Affiliation(s)
- Peter B Adler
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Danielle Smull
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Karen H Beard
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Ryan T Choi
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Tucker Furniss
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Andrew Kulmatiski
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Joan M Meiners
- School of Natural Resources and Environment, University of Florida, Gainesville, FL, 32611, USA
| | - Andrew T Tredennick
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
| | - Kari E Veblen
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, USA
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3
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Hulvey KB, Teller BJ. Site conditions determine a key native plant's contribution to invasion resistance in grasslands. Ecology 2018; 99:1257-1264. [DOI: 10.1002/ecy.2227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/02/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Kristin B. Hulvey
- Environmental Studies Department University of California 1156 High Street Santa Cruz California 95064 USA
| | - Brittany J. Teller
- Biology Department The Pennsylvania State University 208 Mueller Lab University Park Pennsylvania 16803 USA
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Dukes JS, Chiariello NR, Loarie SR, Field CB. Strong response of an invasive plant species (Centaurea solstitialis L.) to global environmental changes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2011; 21:1887-1894. [PMID: 21939031 DOI: 10.1890/11-0111.1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Global environmental changes are altering interactions among plant species, sometimes favoring invasive species. Here, we examine how a suite of five environmental factors, singly and in combination, can affect the success of a highly invasive plant. We introduced Centaurea solstitialis L. (yellow starthistle), which is considered by many to be California's most troublesome wildland weed, to grassland plots in the San Francisco Bay Area. These plots experienced ambient or elevated levels of warming, atmospheric CO2, precipitation, and nitrate deposition, and an accidental fire in the previous year created an additional treatment. Centaurea grew more than six times larger in response to elevated CO2, and, outside of the burned area, grew more than three times larger in response to nitrate deposition. In contrast, resident plants in the community responded less strongly (or did not respond) to these treatments. Interactive effects among treatments were rarely significant. Results from a parallel mesocosm experiment, while less dramatic, supported the pattern of results observed in the field. Taken together, our results suggest that ongoing environmental changes may dramatically increase Centaurea's prevalence in western North America.
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Affiliation(s)
- Jeffrey S Dukes
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana 47907-2061, USA.
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Herron GJ, Sheley RL, Maxwell BD, Jacobsen JS. Influence of Nutrient Availability on the Interaction Between Spotted Knapweed and Bluebunch Wheatgrass. Restor Ecol 2001. [DOI: 10.1046/j.1526-100x.2001.009003326.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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