Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex

Plant diversity has often been reported to decrease insect herbivory in plants. Of the numerous mechanisms that have been proposed to explain this phenomenon, how plant diversity influences plant defences via effects on growth has received little attention. In addition, plant diversity effects may b...

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Authors: Galmán, Andrea, Vázquez-González, Carla, Röder, Gregory, Castagneyrol, Bastien
Format: article
Status:Published version
Publication Date:2022
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/283140
Online Access:http://hdl.handle.net/10261/283140
Access Level:Open access
Keyword:Chemical defences
Insect herbivory
Phytochemical diversity
Quercus ilex
Tree diversity
VOCs
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spelling Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilexGalmán, AndreaVázquez-González, CarlaRöder, GregoryCastagneyrol, BastienChemical defencesInsect herbivoryPhytochemical diversityQuercus ilexTree diversityVOCsPlant diversity has often been reported to decrease insect herbivory in plants. Of the numerous mechanisms that have been proposed to explain this phenomenon, how plant diversity influences plant defences via effects on growth has received little attention. In addition, plant diversity effects may be contingent on abiotic conditions (e.g. resource and water availability). Here, we used a long-term experiment to explore the interactive effects of tree species composition and water availability on growth, direct (i.e. phenolics) and indirect (i.e. volatile organic compounds – VOCs) defences and leaf herbivory in Quercus ilex. We quantified herbivory by chewing insects, phenolic compounds and VOCs in Q. ilex trees growing in stands differing in tree species composition (Q. ilex, Q. ilex + Betula Pendula, Q. ilex + Pinus pinaster and Q. ilex + B. pendula + P. pinaster) and water availability (irrigated versus control). Both direct and indirect defences were affected by tree species composition, but such changes were not mediated by changes in tree stem diameter. Quercus ilex trees growing in stands with P. pinaster had the lowest concentration of both direct and indirect defences. Importantly, the effects of tree species composition on VOCs were exacerbated on irrigated blocks. Despite variation in defences, tree species composition did not affect herbivory in Q. ilex. Accordingly, we did not find any association between defences and insect herbivory. Our results suggest that changes in the micro-environment rather than growth-defence associations may mediate tree diversity effects on defences. In addition, reduced defensive investment in more diverse stands could negatively impact tree resistance masking the beneficial effects of species diversity at reducing insect herbivory.We thank Xoaquín Moreira for funding field sampling through a ILINK-CSIC project (I-LINK12212018-2019). BC was funded by the ‘Diversity and Productivity of Trees in the context of Climate Change' project (DiPTiCC, Grant ANR-16-CE32-0003-01). CVG received financial funding from the MINECO-FPI program (BES-2016-076624) and the Xunta de Galicia-GAIN/Fulbright postdoctoral program (IN606B_2021_004).John Wiley & SonsConsejo Superior de Investigaciones Científicas (España)Agence Nationale de la Recherche (France)Ministerio de Economía y Competitividad (España)Axencia Galega de InnovaciónConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/283140reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/CSIC/i-LINK 2019/I-LINK12212018-2019info:eu-repo/grantAgreement/ANR/DiPTiCC/ANR-16-CE32-0003-01info:eu-repo/grantAgreement/MINECO/FPI/BES-2016-076624info:eu-repo/grantAgreement/GAIN/Ayudas de apoyo formación posdoctoral/IN606B-2021-004Galmán, Andrea; Vázquez-González, Carla; Röder, Gregory; Castagneyrol, Bastien; 2022; Dataset for: Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex [Dataset]; Dryad; Version 3; https://doi.org/10.5061/dryad.rjdfn2zcwhttp://dx.doi.org/10.1111/oik.09125Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2831402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
title Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
spellingShingle Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
Galmán, Andrea
Chemical defences
Insect herbivory
Phytochemical diversity
Quercus ilex
Tree diversity
VOCs
title_short Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
title_full Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
title_fullStr Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
title_full_unstemmed Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
title_sort Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex
dc.creator.none.fl_str_mv Galmán, Andrea
Vázquez-González, Carla
Röder, Gregory
Castagneyrol, Bastien
author Galmán, Andrea
author_facet Galmán, Andrea
Vázquez-González, Carla
Röder, Gregory
Castagneyrol, Bastien
author_role author
author2 Vázquez-González, Carla
Röder, Gregory
Castagneyrol, Bastien
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Agence Nationale de la Recherche (France)
Ministerio de Economía y Competitividad (España)
Axencia Galega de Innovación
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Chemical defences
Insect herbivory
Phytochemical diversity
Quercus ilex
Tree diversity
VOCs
topic Chemical defences
Insect herbivory
Phytochemical diversity
Quercus ilex
Tree diversity
VOCs
description Plant diversity has often been reported to decrease insect herbivory in plants. Of the numerous mechanisms that have been proposed to explain this phenomenon, how plant diversity influences plant defences via effects on growth has received little attention. In addition, plant diversity effects may be contingent on abiotic conditions (e.g. resource and water availability). Here, we used a long-term experiment to explore the interactive effects of tree species composition and water availability on growth, direct (i.e. phenolics) and indirect (i.e. volatile organic compounds – VOCs) defences and leaf herbivory in Quercus ilex. We quantified herbivory by chewing insects, phenolic compounds and VOCs in Q. ilex trees growing in stands differing in tree species composition (Q. ilex, Q. ilex + Betula Pendula, Q. ilex + Pinus pinaster and Q. ilex + B. pendula + P. pinaster) and water availability (irrigated versus control). Both direct and indirect defences were affected by tree species composition, but such changes were not mediated by changes in tree stem diameter. Quercus ilex trees growing in stands with P. pinaster had the lowest concentration of both direct and indirect defences. Importantly, the effects of tree species composition on VOCs were exacerbated on irrigated blocks. Despite variation in defences, tree species composition did not affect herbivory in Q. ilex. Accordingly, we did not find any association between defences and insect herbivory. Our results suggest that changes in the micro-environment rather than growth-defence associations may mediate tree diversity effects on defences. In addition, reduced defensive investment in more diverse stands could negatively impact tree resistance masking the beneficial effects of species diversity at reducing insect herbivory.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/283140
url http://hdl.handle.net/10261/283140
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/CSIC/i-LINK 2019/I-LINK12212018-2019
info:eu-repo/grantAgreement/ANR/DiPTiCC/ANR-16-CE32-0003-01
info:eu-repo/grantAgreement/MINECO/FPI/BES-2016-076624
info:eu-repo/grantAgreement/GAIN/Ayudas de apoyo formación posdoctoral/IN606B-2021-004
Galmán, Andrea; Vázquez-González, Carla; Röder, Gregory; Castagneyrol, Bastien; 2022; Dataset for: Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex [Dataset]; Dryad; Version 3; https://doi.org/10.5061/dryad.rjdfn2zcw
http://dx.doi.org/10.1111/oik.09125
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
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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