Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone

Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone

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.

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Auteurs principaux: Terra,Marcela de Castro Nunes Santos, Santos,Rubens Manoel dos, Carvalho,Warley Augusto Caldas, Coelho,Polyanne Aparecida, Reis,Geovany Heitor, Moreira,Aline Martins
Format: Digital revista
Langue:English
Publié: Universidade Federal de Viçosa 2017
Accès en ligne:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2017000200143
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spelling oai:scielo:S0034-737X20170002001432017-06-05Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotoneTerra,Marcela de Castro Nunes SantosSantos,Rubens Manoel dosCarvalho,Warley Augusto CaldasCoelho,Polyanne AparecidaReis,Geovany HeitorMoreira,Aline Martins insect-plant interaction ecotone multiple regression geostatistics 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.info:eu-repo/semantics/openAccessUniversidade Federal de ViçosaRevista Ceres v.64 n.2 20172017-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2017000200143en10.1590/0034-737x201764020006
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country Brasil
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region America del Sur
libraryname SciELO
language English
format Digital
author Terra,Marcela de Castro Nunes Santos
Santos,Rubens Manoel dos
Carvalho,Warley Augusto Caldas
Coelho,Polyanne Aparecida
Reis,Geovany Heitor
Moreira,Aline Martins
spellingShingle Terra,Marcela de Castro Nunes Santos
Santos,Rubens Manoel dos
Carvalho,Warley Augusto Caldas
Coelho,Polyanne Aparecida
Reis,Geovany Heitor
Moreira,Aline Martins
Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
author_facet Terra,Marcela de Castro Nunes Santos
Santos,Rubens Manoel dos
Carvalho,Warley Augusto Caldas
Coelho,Polyanne Aparecida
Reis,Geovany Heitor
Moreira,Aline Martins
author_sort Terra,Marcela de Castro Nunes Santos
title Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
title_short Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
title_full Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
title_fullStr Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
title_full_unstemmed Patterns of gall infestation in Heteropterys byrsonimifolia A. Juss. in a forest-savannah ecotone
title_sort patterns of gall infestation in heteropterys byrsonimifolia a. juss. in a forest-savannah ecotone
description 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.
publisher Universidade Federal de Viçosa
publishDate 2017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2017000200143
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