Intense Disturbance Enhances Plant Susceptibility to Herbivory: Natural and Experimental Evidence

dc.contributor.authorSpiller, David A.
dc.contributor.authorAgrawal, Anurag A.
dc.date.accessioned2019-08-02T13:06:50Z
dc.date.available2019-08-02T13:06:50Z
dc.date.issued2003-04-01
dc.description.abstractFollowing Hurricane Lili, which passed directly over the site of our ongoing study in Great Exuma, Bahamas, herbivory increased on devastated islands exposed to the storm surge, but not on protected islands. Observations suggested that foliage sprouting on severely damaged shrubs was more susceptible to herbivores than was new foliage on undamaged shrubs. To test this hypothesis, we conducted a controlled field experiment: hurricane damage was simulated by pruning shrubs on replicated islands. Seven months after the manipulation, herbivory was 68% higher on pruned shrubs than on controls. Leaf size and percentage of nitrogen were higher, and leaf toughness and trichome density were lower on pruned shrubs than on controls. The experimental results indicate that enhanced herbivory on exposed islands following Hurricane Lili was caused, at least in part, by increased susceptibility of the sprouted foliage to herbivorous arthropods. Because sprouting occurs on many woody plants following natural or anthropogenic disturbances, the findings in this study may have broad implications. Corresponding Editor: S. C. Pennings.
dc.description.sponsorshipWe thank NSF (DEB?9904121) and NSERC (Natural Sciences and Engineering Research Council) for support.
dc.identifier.urihttps://hdl.handle.net/1813/66758
dc.language.isoen_US
dc.publisherEcological Society of America
dc.relation.doihttps://doi.org/10.1890/0012-9658(2003)084[0890:IDEPST]2.0.CO;2
dc.relation.hasversionSpiller, D., & Agrawal, A. (2003). Intense Disturbance Enhances Plant Susceptibility to Herbivory: Natural and Experimental Evidence. Ecology, 84(4), 890-897.
dc.relation.ispartofseriesEcology
dc.subjectabiotic disturbance
dc.subjectBahamas
dc.subjectconocarpus erectus
dc.subjectfoliage sprouting
dc.subjectfood webs
dc.subjectherbivory
dc.subjecthurricanes
dc.subjectleaf damage
dc.subjectmoths
dc.subjectpruning experiment
dc.subjecttrichomes
dc.titleIntense Disturbance Enhances Plant Susceptibility to Herbivory: Natural and Experimental Evidence
dc.typearticle
dcterms.licensehttps://hdl.handle.net/1813/60291
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