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Title: Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
Other Titles: Padrões de infestação por galhas em Heteropterys byrsonimifolia A. Juss., em ecótone floresta-cerrado
Keywords: Insect-plant interaction
Multiple regression
Interação inseto-planta
Ambiente ecotonal
Regressão múltipla
Issue Date: Apr-2017
Publisher: Universidade Federal de Viçosa (UFV)
Citation: TERRA, M. de C. N. S. et al. Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone. Revista Ceres, Viçosa, MG, v. 64, n. 2, p. 143-150, mar./abr. 2017. DOI: 10.1590/0034-737x201764020006.
Abstract: Galls are the result of a specific interaction between an inducer and a host plant. The species Heteropterys byrsonimifolia A. Juss. occurs in abundance in semideciduous seasonal forest ecotones and adjacent open formations. In the ecological reserve Quedas do Rio Bonito, located in the state of Minas Gerais, Brazil, this species is affected by a single gall morphotype. The present study aimed to evaluate whether the structural complexity of the host (test of the structural complexity hypothesis) and the distance between hosts (test of the resource concentration hypothesis) affect gall density in H. byrsonimifolia and to characterize the spatial distribution of the infestation. The results corroborate the two hypotheses tested, suggesting a metapopulation pattern of gall infestation in H. byrsonimifolia. Gallers were more successful in abrupt forest-savannah transition environments, which may be associated with greater stress-induced host vulnerability that plants usually experience in ecotones.
Appears in Collections:DCF - Artigos publicados em periódicos
DFP - Artigos publicados em periódicos

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