Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (439 KB)

Title: Effects of native vegetation on invasion success of Chinese tallow in a floating marsh ecosystem

Author: Battaglia, L.L.; Denslow, J.S.; Inczauskis, J.R.; Baer, S.G.;

Date: 2009

Source: Journal of Ecology. 97: 239-246

Publication Series: Scientific Journal (JRNL)


  • Interactions between resident and exotic species have been shown to control the biotic resistance of communities to invasion. With different life stages of the exotic species, each sequential interaction may dampen or strengthen previous ones, thereby influencing invasion success.
  • We assessed the effects of resident vegetation type on the arrival and performance of Triadica sebifera (Chinese tallow), a widespread invader in freshwater floating marshes, using a combination of field studies and glasshouse experiments.
  • Our results indicated that Triadica abundance was positively associated with native woody species, particularly the native actinorhizal shrub Morella cerifera (wax myrtle). Seed dispersal and germination of Triadica were generally low but suggestive that Morella has weak, facilitative effects on the spread of Triadica by channelling its dispersal by birds into shrub thickets and promoting germination upon arrival. Triadica seedling growth was greatest where light and total inorganic N were higher. Growth of Triadica trees was greater in marsh sites without Morella and did not exhibit any detectable responses to elevated N levels in substrates from Morella thickets.
  • Morella may facilitate the spread of Triadica in floating shrub communities, yet inhibit its growth once established. The few individuals that establish in herbaceous marshes grow faster and may therefore reach maturity sooner than in Morella shrub thickets.
  • Synthesis. Our work suggests that the net effects of facilitation and inhibition by native, resident species on exotics can influence invasion success. In this case, weak, facilitative effects operating in the arrival and establishment phases of invasion are not completely negated by subsequent negative interactions between the same species, enabling the invader to persist. Models that quantify the relative strength and cumulative effects of these interactions are needed to improve predictions of community invasibility.

    Keywords: Chinese tallow, exotic, facilitation, floating marsh, invasive species, Mississippi River Delta, Morella cerifera, Myrica cerifera, Sapium sebiferum, Triadica sebifera, wax myrtle, wetland

    Publication Notes:

    • 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.

    XML: View XML


    Battaglia, L.L.; Denslow, J.S.; Inczauskis, J.R.; Baer, S.G. 2009. Effects of native vegetation on invasion success of Chinese tallow in a floating marsh ecosystem. Journal of Ecology. 97: 239-246.


     [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

  • USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.