Host-plant Specialization Mediates The Influence Of Plant Abundance On Host Use By Flower Head-feeding Insects

dc.creatorNobre
dc.creatorPaola A. F.; Bergamini
dc.creatorLeonardo L.; Lewinsohn
dc.creatorThomas M.; Jorge
dc.creatorLeonardo R.; Almeida-Neto
dc.creatorMario
dc.date2016
dc.datefev
dc.date2017-11-13T11:34:42Z
dc.date2017-11-13T11:34:42Z
dc.date.accessioned2018-03-29T05:48:55Z
dc.date.available2018-03-29T05:48:55Z
dc.identifierEnvironmental Entomology. Oxford Univ Press , v. 45, p. 171 - 177, 2016.
dc.identifier0046-225X
dc.identifier1938-2936
dc.identifierWOS:000370271900021
dc.identifier10.1093/ee/nvv177
dc.identifierhttps://academic.oup.com/ee/article/45/1/171/2465862/Host-Plant-Specialization-Mediates-the-Influence
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/326479
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1363485
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionAmong-population variation in host use is a common phenomenon in herbivorous insects. The simplest and most trivial explanation for such variation in host use is the among-site variation in plant species composition. Another aspect that can influence spatial variation in host use is the relative abundance of each host-plant species compared to all available hosts. Here, we used endophagous insects that develop in flower heads of Asteraceae species as a study system to investigate how plant abundance influences the pattern of host-plant use by herbivorous insects with distinct levels of host-range specialization. Only herbivores recorded on three or more host species were included in this study. In particular, we tested two related hypotheses: 1) plant abundance has a positive effect on the host-plant preference of herbivorous insects, and 2) the relative importance of plant abundance to host-plant preference is greater for herbivorous species that use a wider range of host-plant species. We analyzed 11 herbivore species in 20 remnants of Cerrado in Southeastern Brazil. For 8 out of 11 herbivore species, plant abundance had a positive influence on host use. In contrast to our expectation, both the most specialized and the most generalist herbivores showed a stronger positive effect of plant species abundance in host use. Thus, we found evidence that although the abundance of plant species is a major factor determining the preferential use of host plants, its relative importance is mediated by the host-range specialization of herbivores.
dc.description45
dc.description1
dc.description171
dc.description177
dc.descriptionFAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo) within the BIOTA-FAPESP Program [98/05085-2, 04/15482-1, 03/02541-0, 06/56889-2]
dc.descriptionCAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
dc.descriptionCNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageEnglish
dc.publisherOxford Univ Press
dc.publisherCARY
dc.relationEnvironmental Entomology
dc.rightsfechado
dc.sourceWOS
dc.subjectCompositae
dc.subjectDiet Breadth
dc.subjectFruit Fly
dc.subjectHost Plant Selection
dc.subjectInformation-processing (or Neural-constraints) Hypothesis
dc.titleHost-plant Specialization Mediates The Influence Of Plant Abundance On Host Use By Flower Head-feeding Insects
dc.typeArtículos de revistas


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