The interplay between plant traits and herbivore attack: a study of a stem galling midge in the neotropics

dc.creatorPrado, PIKL
dc.creatorVieira, EM
dc.date1999
dc.dateFEB
dc.date2014-12-02T16:27:06Z
dc.date2015-11-26T17:28:47Z
dc.date2014-12-02T16:27:06Z
dc.date2015-11-26T17:28:47Z
dc.date.accessioned2018-03-29T00:15:52Z
dc.date.available2018-03-29T00:15:52Z
dc.identifierEcological Entomology. Blackwell Science Ltd, v. 24, n. 1, n. 80, n. 88, 1999.
dc.identifier0307-6946
dc.identifierWOS:000078884500009
dc.identifier10.1046/j.1365-2311.1999.00173.x
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73554
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/73554
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73554
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1285135
dc.description1. The relationship between plant traits and the frequency of attack by a stem galling midge, Neolasioptera sp. (Diptera: Cecidomyiidae), on Eremanthus erythropappus (Asteraceae) was studied. The morphological changes of the host after a galler attack and the potential effects of these changes on attacks by the next generation of gallers were analysed. The study was conducted in the Serra do Japi, Sla Paulo, south-eastern Brazil. 2. Galled branches were significantly longer, thicker, and had more leaves than ungalled branches. Accordingly, gall establishment was higher in the longer and more foliose branches. Hence, it is suggested that ovipositing females are maximizing their performance by selecting larger branches. 3. Galled branches were larger than ungalled branches of the same age. Two hypotheses, not necessarily exclusive, can explain this pattern: (1) the plant vigour hypothesis that the females are choosing the more vigorous,fast-growing branches, which still remain more vigorous after galling; or (2) the resource regulation hypothesis that galling increases branch growth rates, thus increasing resource quality for forthcoming: conspecifics. 4. Co-occurrence frequencies of current and past generation galls showed that the likelihood of a branch being galled increased when it, or the branch from which it stemmed, had been galled before. The data indicated that this preference was conditioned by the number of previous attacks. Heavier attack intensities, such as one gall in the same branch and another in the branch from which it stemmed, decreased the probability of further galling. 5. The suggested links between herbivore attack and plant traits indicate that studies on host selection by phytophagous insects must take into account that herbivory itself may change the plant traits that are postulated to be selected by the insects.
dc.description24
dc.description1
dc.description80
dc.description88
dc.languageen
dc.publisherBlackwell Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationEcological Entomology
dc.relationEcol. Entomol.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectAsteraceae
dc.subjectCecidomyiidae
dc.subjectgalls
dc.subjectherbivory
dc.subjectplant vigour hypothesis
dc.subjectresource regulation hypothesis
dc.subjectVigor Hypothesis
dc.subjectHymenoptera
dc.subjectGrowth
dc.subjectCompetition
dc.subjectCynipidae
dc.subjectResource
dc.subjectWillow
dc.subjectTenthredinidae
dc.subjectArchitecture
dc.subjectDynamics
dc.titleThe interplay between plant traits and herbivore attack: a study of a stem galling midge in the neotropics
dc.typeArtículos de revistas


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