Warming benefits a native species competing with an invasive congener in the presence of a biocontrol beetle

© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 211(2016), 4 vom: 14. Sept., Seite 1371-81
1. Verfasser: Lu, Xinmin (VerfasserIn)
Weitere Verfasser: Siemann, Evan, He, Minyan, Wei, Hui, Shao, Xu, Ding, Jianqing
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't biological control climate warming competition herbivore latitudinal gradient life history plant invasion plant-insect interaction
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520 |a Climate warming may affect biological invasions by altering competition between native and non-native species, but these effects may depend on biotic interactions. In field surveys at 33 sites in China along a latitudinal and temperature gradient from 21°N to 30.5°N and a 2-yr field experiment at 30.5°N, we tested the role of the biocontrol beetle Agasicles hygrophila in mediating warming effects on competition between the invasive plant Alternanthera philoxeroides and the native plant Alternanthera sessilis. In surveys, native populations were perennial below 25.8°N but only annual populations were found above 26.5°N where the invader dominated the community. Beetles were present throughout the gradient. Experimental warming (+ 1.8°C) increased native plant performance directly by shifting its lifecycle from annual to perennial, and indirectly by releasing the native from competition via disproportionate increases in herbivory on the invader. Consequently, warming shifted the plant community from invader-dominated to native-dominated but only in the presence of the beetle. Our results show that herbivores can play a critical role in determining warming effects on plant communities and species invasions. Understanding how biotic interactions shape responses of communities to climate change is crucial for predicting the risk of plant invasions 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a biological control 
650 4 |a climate warming 
650 4 |a competition 
650 4 |a herbivore 
650 4 |a latitudinal gradient 
650 4 |a life history 
650 4 |a plant invasion 
650 4 |a plant-insect interaction 
700 1 |a Siemann, Evan  |e verfasserin  |4 aut 
700 1 |a He, Minyan  |e verfasserin  |4 aut 
700 1 |a Wei, Hui  |e verfasserin  |4 aut 
700 1 |a Shao, Xu  |e verfasserin  |4 aut 
700 1 |a Ding, Jianqing  |e verfasserin  |4 aut 
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