Title

Quantitative analysis of the effects of the exotic Argentine ant on seed-dispersal mutualisms

Authors

Authors

M. A. Rodriguez-Cabal; K. L. Stuble; M. A. Nunez;N. J. Sanders

Abbreviated Journal Title

Biol. Lett.

Keywords

Argentine ants; exotic invasive species; seed-dispersal mutualisms; meta-analysis; REPLACE NATIVE ANTS; LINEPITHEMA-HUMILE; CONSEQUENCES; PLANT; INVASION; MYRMECOCHORY; METAANALYSIS; PATTERNS; ECOLOGY; Biology; Ecology; Evolutionary Biology

Abstract

Although it is increasingly clear that exotic invasive species affect seed-dispersal mutualisms, a synthetic examination of the effect of exotic invasive species on seed-dispersal mutualisms is lacking. Here, we review the impacts of the invasive Argentine ant (Linepithema humile) on seed dispersal. We found that sites with L. humile had 92 per cent fewer native ant seed dispersers than did sites where L. humile was absent. In addition, L. humile did not replace native seed dispersers, as rates of seed removal and seedling establishment were all lower in the presence of L. humile than in its absence. We conclude that potential shifts in plant diversity and concomitant changes in ecosystem function may be a consequence of Argentine ant invasions, as well as invasions by other ant species. Because very few studies have examined the effects of non-ant invasive species on seed-dispersal mutualisms, the prevalence of disruption of seed-dispersal mutualisms by invasive species is unclear.

Journal Title

Biology Letters

Volume

5

Issue/Number

4

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

499

Last Page

502

WOS Identifier

WOS:000267881700018

ISSN

1744-9561

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