Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?

Plant diversity can influence predators and omnivores and such effects may in turn influence herbivores and plants. However, evidence for these ecological feedbacks is rare. We evaluated if the effects of tree species (SD) and genotypic diversity (GD) on the abundance of different guilds of insect h...

Descripción completa

Detalles Bibliográficos
Autores: MARIA JOSE CAMPOS NAVARRETE, LUIS ALEJANDRO ABDALA ROBERTS, MIGUEL ANGEL MUNGUIA ROSAS, VICTOR PROSPERO PARRA TABLA
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:México
Institución:Universidad Autónoma de Yucatán
Repositorio:Repositorio Digital Institucional de la Universidad Autónoma de Yucatán
Idioma:inglés
OAI Identifier:oai:redi.uady.mx:123456789/1506
Acceso en línea:http://redi.uady.mx:8080/handle/123456789/1506
Access Level:acceso abierto
Palabra clave:info:eu-repo/classification/cti/2
info:eu-repo/classification/cti/3
id MX_246df6dcaa367528841bee2e3dbd0348
oai_identifier_str oai:redi.uady.mx:123456789/1506
network_acronym_str MX
network_name_str México
repository_id_str
spelling Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?MARIA JOSE CAMPOS NAVARRETELUIS ALEJANDRO ABDALA ROBERTSMIGUEL ANGEL MUNGUIA ROSASVICTOR PROSPERO PARRA TABLAinfo:eu-repo/classification/cti/2info:eu-repo/classification/cti/3Plant diversity can influence predators and omnivores and such effects may in turn influence herbivores and plants. However, evidence for these ecological feedbacks is rare. We evaluated if the effects of tree species (SD) and genotypic diversity (GD) on the abundance of different guilds of insect herbivores associated with big-leaf mahogany (Swietenia macrophylla) were contingent upon the protective effects of ants tending extra-floral nectaries of this species. This study was conducted within a larger experiment consisting of mahogany monocultures and species polycultures of four species and –within each of these two plot types– mahogany was represented by either one or four maternal families. We selected 24 plots spanning these treatment combinations, 10 mahogany plants/plot, and within each plot experimentally reduced ant abundance on half of the selected plants, and surveyed ant and herbivore abundance. There were positive effects of SD on generalist leaf-chewers and sap-feeders, but for the latter group this effect depended on the ant reduction treatment: SD positively influenced sap-feeders under ambient ant abundance but had no effect when ant abundance was reduced; at the same time, ants had negative effects on sap feeders in monoculture but no effect in polyculture. In contrast, SD did not influence specialist stemborers or leaf-miners and this effect was not contingent upon ant reduction. Finally, GD did not influence any of the herbivore guilds studied, and such effects did not depend on the ant treatment. Overall, we show that tree species diversity influenced interactions between a focal plant species (mahogany) and ants, and that such effects in turn mediated plant diversity effects on some (sap-feeders) but not all the herbivores guilds studied. Our results suggest that the observed patterns are dependent on the combined effects of herbivore identity, diet breadth, and the source of plant diversity.2015-08-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://redi.uady.mx:8080/handle/123456789/1506urn:issn:1932-6203reponame:Repositorio Digital Institucional de la Universidad Autónoma de Yucatáninstname:Universidad Autónoma de Yucatáninstacron:UADYengInvestigación aplicadainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0oai:redi.uady.mx:123456789/15062024-10-04T19:03:54Z
dc.title.none.fl_str_mv Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
title Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
spellingShingle Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
MARIA JOSE CAMPOS NAVARRETE
info:eu-repo/classification/cti/2
info:eu-repo/classification/cti/3
title_short Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
title_full Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
title_fullStr Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
title_full_unstemmed Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
title_sort Are Tree Species Diversity and Genotypic Diversity Effects on Insect Herbivores Mediated by Ants?
dc.creator.none.fl_str_mv MARIA JOSE CAMPOS NAVARRETE
LUIS ALEJANDRO ABDALA ROBERTS
MIGUEL ANGEL MUNGUIA ROSAS
VICTOR PROSPERO PARRA TABLA
author MARIA JOSE CAMPOS NAVARRETE
author_facet MARIA JOSE CAMPOS NAVARRETE
LUIS ALEJANDRO ABDALA ROBERTS
MIGUEL ANGEL MUNGUIA ROSAS
VICTOR PROSPERO PARRA TABLA
author_role author
author2 LUIS ALEJANDRO ABDALA ROBERTS
MIGUEL ANGEL MUNGUIA ROSAS
VICTOR PROSPERO PARRA TABLA
author2_role author
author
author
dc.subject.none.fl_str_mv info:eu-repo/classification/cti/2
info:eu-repo/classification/cti/3
topic info:eu-repo/classification/cti/2
info:eu-repo/classification/cti/3
description Plant diversity can influence predators and omnivores and such effects may in turn influence herbivores and plants. However, evidence for these ecological feedbacks is rare. We evaluated if the effects of tree species (SD) and genotypic diversity (GD) on the abundance of different guilds of insect herbivores associated with big-leaf mahogany (Swietenia macrophylla) were contingent upon the protective effects of ants tending extra-floral nectaries of this species. This study was conducted within a larger experiment consisting of mahogany monocultures and species polycultures of four species and –within each of these two plot types– mahogany was represented by either one or four maternal families. We selected 24 plots spanning these treatment combinations, 10 mahogany plants/plot, and within each plot experimentally reduced ant abundance on half of the selected plants, and surveyed ant and herbivore abundance. There were positive effects of SD on generalist leaf-chewers and sap-feeders, but for the latter group this effect depended on the ant reduction treatment: SD positively influenced sap-feeders under ambient ant abundance but had no effect when ant abundance was reduced; at the same time, ants had negative effects on sap feeders in monoculture but no effect in polyculture. In contrast, SD did not influence specialist stemborers or leaf-miners and this effect was not contingent upon ant reduction. Finally, GD did not influence any of the herbivore guilds studied, and such effects did not depend on the ant treatment. Overall, we show that tree species diversity influenced interactions between a focal plant species (mahogany) and ants, and that such effects in turn mediated plant diversity effects on some (sap-feeders) but not all the herbivores guilds studied. Our results suggest that the observed patterns are dependent on the combined effects of herbivore identity, diet breadth, and the source of plant diversity.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://redi.uady.mx:8080/handle/123456789/1506
url http://redi.uady.mx:8080/handle/123456789/1506
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Investigación aplicada
dc.source.none.fl_str_mv urn:issn:1932-6203
reponame:Repositorio Digital Institucional de la Universidad Autónoma de Yucatán
instname:Universidad Autónoma de Yucatán
instacron:UADY
instname_str Universidad Autónoma de Yucatán
instacron_str UADY
institution UADY
reponame_str Repositorio Digital Institucional de la Universidad Autónoma de Yucatán
collection Repositorio Digital Institucional de la Universidad Autónoma de Yucatán
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858174678143598592
score 15.811543

Similares en LA Referencia