Skip to Main Content
Lack of native vegetation recovery following biological control of leafy spurgeAuthor(s): Jack L. Butler; Stefanie D. Wacker
Source: Rangeland Ecology and Management. 63(5): 553-563.
Publication Series: Miscellaneous Publication
PDF: View PDF (930.77 KB)
DescriptionLeafy spurge (Euphorbia esula L.) is an aggressive exotic species that has been successfully suppressed in a variety of situations using classical biological control (flea beetles; Aphthona spp.). This 9-yr study investigated patterns of vegetation responses following significant reductions in leafy spurge cover and density by flea beetles in southeastern Montana. We hypothesized that the vegetation following leafy spurge suppression would be dominated by species and plant functional groups able to persist through heavy infestations. Flea beetles were first released in 1998, and by 2006 leafy spurge foliar cover was reduced 80% to 90% compared to 1998 values on both release and nonrelease plots. Although total cover of the resident vegetation, excluding leafy spurge, increased 72% to 88%, relative cover of the functional groups (native forbs, native sedges, native grasses, and nonnative species) was similar among years and between release and nonrelease plots. Mean diversity and mean species richness values did not differ among years or between release and nonrelease plots (P,0.05), but mean diversity on both release and nonrelease plots was significantly less than noninfested plots, although richness was similar (P,0.05). Indicator species analysis revealed that non-native Poa spp. replaced leafy spurge as the dominant species on release and nonrelease plots. Conversely, noninfested plots contained a variety of native species with high indicator values. Although total abundance of the resident vegetation in 2006 was significantly greater than 1998, plant species composition and relative cover showed little change for the duration of the study. Failure of the native vegetation to recover to a community that approached nearby noninfested conditions may be attributed to a variety of interacting scenarios, some of which may be ameliorated by treating infestations as soon as possible to avoid long-term residual effects.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationButler, Jack L.; Wacker, Stefanie D. 2010. Lack of native vegetation recovery following biological control of leafy spurge. Rangeland Ecology and Management. 63(5): 553-563.
Keywordsbiological weed control, Euphorbia esula, exotic invasive, flea beetle, Northern Great Plains, restoration ecology
- Population dynamics and impacts of the red-headed leafy spurge stem borer on leafy spurge
- Population dynamics and impacts of the red-headed leafy spurge stem borer on leafy spurge (Euphorbia esula)
- Observational monitoring of biological control vs. herbicide to suppress leafy spurge (Euphorbia esula) for eight years
XML: View XML