Conyza canadensis suppresses plant diversity in its nonnative ranges but not at home : a transcontinental comparison

© 2014 The Authors. New Phytologist © 2014 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 202(2014), 4 vom: 25. Juni, Seite 1286-1296
1. Verfasser: Shah, Manzoor A (VerfasserIn)
Weitere Verfasser: Callaway, Ragan M, Shah, Tabasum, Houseman, Gregory R, Pal, Robert W, Xiao, Sa, Luo, Wenbo, Rosche, Christoph, Reshi, Zafar A, Khasa, Damase P, Chen, Shuyan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Conyza canadensis biogeography competition cross-continental experiment impact invasion ecology plant community species diversity
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520 |a The impact of invasive species across their native and nonnative ranges is poorly quantified and this impedes a complete understanding of biological invasions. We compared the impact of the native North American plant, Conyza canadensis, which is invasive to Eurasia, on species richness at home and in a number of introduced regions through well replicated transcontinental field studies, glasshouse experiments and individual-based models. Our results demonstrated mostly negative relationships between C. canadensis abundance and native species richness in nonnative ranges, but either positive or no relationships in its native North American range. In glasshouse experiments, the total biomass of Conyza was suppressed more by species from its native range than by species from regions where it is nonnative, but the effects of Conyza on other species did not show a consistent biogeographical pattern. Finally, individual-based models led to the exclusion of Conyza from North American scenarios but to high abundances in scenarios with species from the nonnative ranges of Conyza. We illustrate biogeographical differences in the impact of an invader across regional scales and suggest that inherent differences in one specific aspect of competitive ability, tolerance to the effects of other species, may play some role in these differences 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Conyza canadensis 
650 4 |a biogeography 
650 4 |a competition 
650 4 |a cross-continental experiment 
650 4 |a impact 
650 4 |a invasion ecology 
650 4 |a plant community 
650 4 |a species diversity 
700 1 |a Callaway, Ragan M  |e verfasserin  |4 aut 
700 1 |a Shah, Tabasum  |e verfasserin  |4 aut 
700 1 |a Houseman, Gregory R  |e verfasserin  |4 aut 
700 1 |a Pal, Robert W  |e verfasserin  |4 aut 
700 1 |a Xiao, Sa  |e verfasserin  |4 aut 
700 1 |a Luo, Wenbo  |e verfasserin  |4 aut 
700 1 |a Rosche, Christoph  |e verfasserin  |4 aut 
700 1 |a Reshi, Zafar A  |e verfasserin  |4 aut 
700 1 |a Khasa, Damase P  |e verfasserin  |4 aut 
700 1 |a Chen, Shuyan  |e verfasserin  |4 aut 
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