Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system

Numerous hypotheses have been posited to explain the observed variation in plant defense strategies against herbivory. Under resource-rich environments, plants are predicted to increase their tolerance (limiting resource model; LRM) and, while the resource availability hypothesis (RAH) predicts a de...

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Detalhes bibliográficos
Autores: Hernán, Gema, Castejón-Silvo, Inés, Terrados, Jorge, Tomàs, Fiona
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/204438
Acesso em linha:http://hdl.handle.net/10261/204438
Access Level:acceso abierto
Palavra-chave:Plant-herbivore interactions
Limited resource model
Resource availability hypothesis
Nutrients
Posidonia oceanica
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spelling Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass systemHernán, GemaCastejón-Silvo, InésTerrados, JorgeTomàs, FionaPlant-herbivore interactionsLimited resource modelResource availability hypothesisNutrientsPosidonia oceanicaNumerous hypotheses have been posited to explain the observed variation in plant defense strategies against herbivory. Under resource-rich environments, plants are predicted to increase their tolerance (limiting resource model; LRM) and, while the resource availability hypothesis (RAH) predicts a decrease in constitutive resistance in plant species growing in resource-rich environments, at the intraspecific level, plants are predicted to follow an opposite pattern (intraspecific RAH). Furthermore, the effect of multiple factors in modulating plant defense strategies has been scarcely explored and is more difficult to predict. Our aim was to understand how plant defense traits respond to herbivory, resource availability and their interactions, and to assess the effects on plant palatability. To this end, we performed an in situ factorial experiment at two sites simulating three herbivory levels and two nutrient availability conditions with the seagrass Posidonia oceanica. Additionally, we performed a series of feeding experiments with its two main herbivores. While plants decreased their constitutive resistance under nutrient fertilization (contrary to intraspecific RAH but in accordance to the RAH), and did not increase allocation to tolerance (likely due to resource limitation, LRM), simulated herbivory induced resistance traits. However, we found no interactive effects of nutrient fertilization and herbivory simulation on plant defense. Both herbivores responded similarly to changes in plant palatability, strongly preferring nutrient-enriched plants and non-clipped plants. This work highlights the need to better understand the drivers of plant defense intraspecific variability in response to resources, particularly in habitat-forming species where changes in plant traits and abundance will cascade onto associated species.GH was supported by the research personnel program co-funded by the European Social Fund and the Government of the Balearic Islands (Conselleria d´Educació, Cultura i Universitats). This study was supported by POSIPLANT (CTM2011-27377), RESIGRASS (CGL2014-58829-C2-2-R) to FT and JT, and the Ramón y Cajal Program to FT.Peer reviewedSpringer NatureEuropean CommissionGovern de les Illes BalearsMinisterio de Ciencia e Innovación (España)Ministerio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/204438reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-58829-C2-2-Rhttp://doi.org/10.1007/s00442-019-04364-6Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2044382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
title Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
spellingShingle Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
Hernán, Gema
Plant-herbivore interactions
Limited resource model
Resource availability hypothesis
Nutrients
Posidonia oceanica
title_short Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
title_full Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
title_fullStr Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
title_full_unstemmed Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
title_sort Herbivory and resource availability shift plant defense and herbivore feeding choice in a seagrass system
dc.creator.none.fl_str_mv Hernán, Gema
Castejón-Silvo, Inés
Terrados, Jorge
Tomàs, Fiona
author Hernán, Gema
author_facet Hernán, Gema
Castejón-Silvo, Inés
Terrados, Jorge
Tomàs, Fiona
author_role author
author2 Castejón-Silvo, Inés
Terrados, Jorge
Tomàs, Fiona
author2_role author
author
author
dc.contributor.none.fl_str_mv European Commission
Govern de les Illes Balears
Ministerio de Ciencia e Innovación (España)
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Plant-herbivore interactions
Limited resource model
Resource availability hypothesis
Nutrients
Posidonia oceanica
topic Plant-herbivore interactions
Limited resource model
Resource availability hypothesis
Nutrients
Posidonia oceanica
description Numerous hypotheses have been posited to explain the observed variation in plant defense strategies against herbivory. Under resource-rich environments, plants are predicted to increase their tolerance (limiting resource model; LRM) and, while the resource availability hypothesis (RAH) predicts a decrease in constitutive resistance in plant species growing in resource-rich environments, at the intraspecific level, plants are predicted to follow an opposite pattern (intraspecific RAH). Furthermore, the effect of multiple factors in modulating plant defense strategies has been scarcely explored and is more difficult to predict. Our aim was to understand how plant defense traits respond to herbivory, resource availability and their interactions, and to assess the effects on plant palatability. To this end, we performed an in situ factorial experiment at two sites simulating three herbivory levels and two nutrient availability conditions with the seagrass Posidonia oceanica. Additionally, we performed a series of feeding experiments with its two main herbivores. While plants decreased their constitutive resistance under nutrient fertilization (contrary to intraspecific RAH but in accordance to the RAH), and did not increase allocation to tolerance (likely due to resource limitation, LRM), simulated herbivory induced resistance traits. However, we found no interactive effects of nutrient fertilization and herbivory simulation on plant defense. Both herbivores responded similarly to changes in plant palatability, strongly preferring nutrient-enriched plants and non-clipped plants. This work highlights the need to better understand the drivers of plant defense intraspecific variability in response to resources, particularly in habitat-forming species where changes in plant traits and abundance will cascade onto associated species.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/204438
url http://hdl.handle.net/10261/204438
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-58829-C2-2-R
http://doi.org/10.1007/s00442-019-04364-6
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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