Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Herbivory, time since introduction and the invasiveness of exotic plants

Herbivory, time since introduction and the invasiveness of exotic plants 1 We tested the enemy release hypothesis for invasiveness using field surveys of herbivory on 39 exotic and 30 native plant species growing in natural areas near Ottawa, Canada, and found that exotics suffered less herbivory than natives. 2 For the 39 introduced species, we also tested relationships between herbivory, invasiveness and time since introduction to North America. Highly invasive plants had significantly less herbivory than plants ranked as less invasive. Recently arrived plants also tended to be more invasive; however, there was no relationship between time since introduction and herbivory. 3 Release from herbivory may be key to the success of highly aggressive invaders. Low herbivory may also indicate that a plant possesses potent defensive chemicals that are novel to North America, which may confer resistance to pathogens or enable allelopathy in addition to deterring herbivorous insects. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Ecology Wiley

Herbivory, time since introduction and the invasiveness of exotic plants

Journal of Ecology , Volume 93 (2) – Jan 1, 2005

Loading next page...
 
/lp/wiley/herbivory-time-since-introduction-and-the-invasiveness-of-exotic-tBoUi5q53f

References (43)

Publisher
Wiley
Copyright
Copyright © 2005 Wiley Subscription Services
ISSN
0022-0477
eISSN
1365-2745
DOI
10.1111/j.1365-2745.2005.00973.x
Publisher site
See Article on Publisher Site

Abstract

1 We tested the enemy release hypothesis for invasiveness using field surveys of herbivory on 39 exotic and 30 native plant species growing in natural areas near Ottawa, Canada, and found that exotics suffered less herbivory than natives. 2 For the 39 introduced species, we also tested relationships between herbivory, invasiveness and time since introduction to North America. Highly invasive plants had significantly less herbivory than plants ranked as less invasive. Recently arrived plants also tended to be more invasive; however, there was no relationship between time since introduction and herbivory. 3 Release from herbivory may be key to the success of highly aggressive invaders. Low herbivory may also indicate that a plant possesses potent defensive chemicals that are novel to North America, which may confer resistance to pathogens or enable allelopathy in addition to deterring herbivorous insects.

Journal

Journal of EcologyWiley

Published: Jan 1, 2005

Keywords: ; ; ; ; ; ;

There are no references for this article.