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University of Illinois at Urbana-Champaign
A Community's Natural Resistance to Invasion by Cheatgrass and the Effects of Associational Herbivory
Abstract
dc:descriptionLinking theories of invasion biology with that of associational herbivory, I found that (1) cheatgrass was a highly utilized food source for generalist grasshoppers, (2) among native plant species, the amount of herbivory corresponded with their total percent nitrogen and other plant traits, and (3) a native grass, Elymus elymoides, experienced higher herbivory in high- than in low-density cheatgrass patches, supporting the attractant-source hypothesis that predicts associational susceptibility. Through indirect effects, invading species may generate important shifts in herbivory on native species.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Plant Biology
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Beckstead, Julie
- Contributors dc:contributor
-
- Augspurger, Carol K.
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (MiAaPQ)AAI3023017
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/87023