Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions

Background Root competition is an almost ubiquitous feature of plant communities with profound effects on their structure and composition. Far beyond the traditional view that plants interact mainly through resource depletion (exploitation competition), roots are known to be able to interact with th...

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Detalles Bibliográficos
Autores: Armas, Cristina, Pugnaire, Francisco I.
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/348403
Acceso en línea:http://hdl.handle.net/10261/348403
Access Level:acceso abierto
Palabra clave:plant-plant interactions
aboveground and belowground interactions
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spelling Plant Neighbour Identity Matters to Belowground Interactions under Controlled ConditionsArmas, CristinaPugnaire, Francisco I.plant-plant interactionsaboveground and belowground interactionsBackground Root competition is an almost ubiquitous feature of plant communities with profound effects on their structure and composition. Far beyond the traditional view that plants interact mainly through resource depletion (exploitation competition), roots are known to be able to interact with their environment using a large variety of mechanisms that may inhibit or enhance access of other roots to the resource or affect plant growth (contest interactions). However, an extensive analysis on how these contest root interactions may affect species interaction abilities is almost lacking. Methodology/Principal Findings In a common garden experiment with ten perennial plant species we forced pairs of plants of the same or different species to overlap their roots and analyzed how belowground contest interactions affected plant performance, biomass allocation patterns, and competitive abilities under abundant resource supply. Our results showed that net interaction outcome ranged from negative to positive, affecting total plant mass and allocation patterns. A species could be a strong competitor against one species, weaker against another one, and even facilitator to a third species. This leads to sets of species where competitive hierarchies may be clear but also to groups where such rankings are not, suggesting that intransitive root interactions may be crucial for species coexistence. Conclusions/Significance The outcome of belowground contest interactions is strongly dependent on neighbours' identity. In natural plant communities this conditional outcome may hypothetically help species to interact in non-hierarchical and intransitive networks, which in turn might promote coexistence.Peer reviewed0000-0003-0356-80750000-0002-1227-6827Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/348403reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3484032026-05-22T06:33:51Z
dc.title.none.fl_str_mv Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
title Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
spellingShingle Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
Armas, Cristina
plant-plant interactions
aboveground and belowground interactions
title_short Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
title_full Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
title_fullStr Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
title_full_unstemmed Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
title_sort Plant Neighbour Identity Matters to Belowground Interactions under Controlled Conditions
dc.creator.none.fl_str_mv Armas, Cristina
Pugnaire, Francisco I.
author Armas, Cristina
author_facet Armas, Cristina
Pugnaire, Francisco I.
author_role author
author2 Pugnaire, Francisco I.
author2_role author
dc.contributor.none.fl_str_mv 0000-0003-0356-8075
0000-0002-1227-6827
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv plant-plant interactions
aboveground and belowground interactions
topic plant-plant interactions
aboveground and belowground interactions
description Background Root competition is an almost ubiquitous feature of plant communities with profound effects on their structure and composition. Far beyond the traditional view that plants interact mainly through resource depletion (exploitation competition), roots are known to be able to interact with their environment using a large variety of mechanisms that may inhibit or enhance access of other roots to the resource or affect plant growth (contest interactions). However, an extensive analysis on how these contest root interactions may affect species interaction abilities is almost lacking. Methodology/Principal Findings In a common garden experiment with ten perennial plant species we forced pairs of plants of the same or different species to overlap their roots and analyzed how belowground contest interactions affected plant performance, biomass allocation patterns, and competitive abilities under abundant resource supply. Our results showed that net interaction outcome ranged from negative to positive, affecting total plant mass and allocation patterns. A species could be a strong competitor against one species, weaker against another one, and even facilitator to a third species. This leads to sets of species where competitive hierarchies may be clear but also to groups where such rankings are not, suggesting that intransitive root interactions may be crucial for species coexistence. Conclusions/Significance The outcome of belowground contest interactions is strongly dependent on neighbours' identity. In natural plant communities this conditional outcome may hypothetically help species to interact in non-hierarchical and intransitive networks, which in turn might promote coexistence.
publishDate 2011
dc.date.none.fl_str_mv 2011
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/348403
url http://hdl.handle.net/10261/348403
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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