Unable to connect to database - 07:36:11 Unable to connect to database - 07:36:11 SQL Statement is null or not a SELECT - 07:36:11 SQL Statement is null or not a DELETE - 07:36:11 Botany & Plant Biology 2007 - Abstract Search
Unable to connect to database - 07:36:11 Unable to connect to database - 07:36:11 SQL Statement is null or not a SELECT - 07:36:11

Abstract Detail


Ecological Section

Stoddard, Jessica [1], Hull-Sanders, Helen [1], Meyer, Gretchen [2].

Evaluation of plant defensive chemicals in plants attacked by specialist aphids: differences between native and invasive populations.

Invasive, exotic plants cost millions of dollars in agricultural loss and damages annually and are believed to be second only to habitat loss in terms of their impact on native diversity. However, the mechanisms that allow plants to become invasive are still poorly understood. It is frequently assumed that introduced plants leave their specialized herbivores and pathogens behind when they colonize new areas and this loss of regulation by natural enemies is thought to contribute to plantsí potential for invasiveness. The Evolution of Increased Competitive Ability (EICA) hypothesis reasoned that if specialist herbivore pressure on exotic plants is reduced in the introduced range, then invasive plants should evolve to decrease their investment in defenses and thus maximize their investment in growth and reproduction. We evaluated plant defensive chemicals of the late golden rod, Solidago gigantea, in plants derived from 10 native North American and 20 invasive European populations within their native host range. Plants were voluntarily colonized by the specialist aphid, Uroleucon nigrotuberculatus, in a screenhouse that provided protection from other herbivores.


Log in to add this item to your schedule

1 - Canisius College, Biology, 2001 Main St., Buffalo, NY, 14208, USA
2 - University of Wisconsin - Milwaukee, Field Station, 3095 Blue Goose Rd., Saukville, WI, 53080, USA

Keywords:
Uroleucon nigrotuberculatus
Solidago gigantea
Evolution of Increased Competitive Ability
invasive
diterpene
sesquiterpene.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P49013
Abstract ID:1251


Copyright © 2000-2007, Botanical Society of America. All rights