The exotic invasive plant Vincetoxicum rossicum is a strong competitor even outside its current realized climatic temperature range

  • Dog-strangling vine (Vincetoxicum rossicum) is an exotic plant originating from Central and Eastern Europe that is becoming increasingly invasive in southern Ontario, Canada. Once established, it successfully displaces local native plant species but mechanisms behind this plant’s high competitive ability are not fully understood. It is unknown whether cooler temperatures will limit the range expansion of V. rossicum, which has demonstrated high tolerance for other environmental variables such as light and soil moisture. Furthermore, if V. rossicum can establish outside its current climatic limit it is unknown whether competition with native species can significantly contribute to reduce fitness and slow down invasion. We conducted an experiment to test the potential of V. rossicum to spread into northern areas of Ontario using a set of growth chambers to simulate southern and northern Ontario climatic temperature regimes. We also tested plant-plant competition by growing V. rossicum in pots with a highly abundant native species, Solidago canadensis, and comparing growth responses to plants grown alone. We found that the fitness of V. rossicum was not affected by the cooler climate despite a delay in reproductive phenology. Growing V. rossicum with S. canadensis caused a significant reduction in seedpod biomass of V. rossicum. However, we did not detect a temperature x competition interaction in spite of evidence for adaptation of S. canadensis to cooler temperature conditions. We conclude that the spread of V. rossicum north within the tested range is unlikely to be limited by climatic temperature but competition with an abundant native species may contribute to slow it down.

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Laura A. Sanderson, Pedro M. Antunes
Parent Title (English):NeoBiota
Document Type:Article
Date of Publication (online):2013/11/21
Date of first Publication:2013/02/12
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2013/11/21
Tag:Dog-Strangling Vine; Vincetoxicum rossicum; climatic temperature range; competition; invasion ecology; invasive species; phenotypic plasticity; reproductive phenology; spread
Page Number:15
First Page:1
Last Page:15
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 58 Pflanzen (Botanik) / 580 Pflanzen (Botanik)
Sammlungen:Sammlung Biologie / Sondersammelgebiets-Volltexte
Zeitschriften / Jahresberichte:NeoBiota / NeoBiota 16
Licence (German):License LogoCreative Commons - Namensnennung 3.0