NDLI: Modeling the long-term effects of introduced herbivores on the spread of an invasive tree

Content Provider	Springer Nature Link
Author	Zhang, Bo DeAngelis, Donald L. Rayamajhi, Min B. Botkin, Daniel
Copyright Year	2017
Abstract	Melaleuca quinquenervia (Cav.) Blake (hereafter melaleuca) is an invasive tree from Australia that has spread over the freshwater ecosystems of southern Florida, displacing native vegetation, thus threatening native biodiversity. Suppression of melaleuca appears to be progressing through the introduction of insect species, the weevil, Oxiops vitiosa, and the psyllid, Boreioglycaspis melaleucae.To improve understanding of the possible effects of herbivory on the landscape dynamics of melaleuca in native southern Florida plant communities.We projected likely future changes in plant communities using the individual based modeling platform, JABOWA-II, by simulating successional processes occurring in two types of southern Florida habitat, cypress swamp and bay swamp, occupied by native species and melaleuca, with the impact of insect herbivores.Computer simulations show melaleuca invasion leads to decreases in density and basal area of native species, but herbivory would effectively control melaleuca to low levels, resulting in a recovery of native species. When herbivory was modeled on pure melaleuca stands, it was more effective in stands with initially larger-sized melaleuca. Although the simulated herbivory did not eliminate melaleuca, it decreased its presence dramatically in all cases, supporting the long-term effectiveness of herbivory in controlling melaleuca invasion.The results provide three conclusions relevant to management: (1) The introduction of insect herbivory that has been applied to melaleuca appears sufficient to suppress melaleuca over the long term, (2) dominant native species may recover in about 50 years, and (3) regrowth of native species will further suppress melaleuca through competition.
Starting Page	1147
Ending Page	1161
Page Count	15
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	32
Issue Number	6
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2017-04-17
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Invasive plant Insect herbivory Individual-based model JABOWA-II forest simulator Melaleuca quinquenervia Native species recovery Landscape Ecology Ecology Nature Conservation Landscape/Regional and Urban Planning Sustainable Development Environmental Management
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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