Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance

This is the peer reviewed version of the following article: Journal of Vegetation Science 26.3 (2015): 538-551, which has been published in final form at http://dx.doi.org/10.1111/jvs.12260. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-A...

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Detalhes bibliográficos
Autores: Carmona, Carlos P., Mason, Norman W H, Martín Azcarate, Francisco, Peco Vázquez, Begoña
Formato: artículo
Fecha de publicación:2015
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/671948
Acesso em linha:http://hdl.handle.net/10486/671948
https://dx.doi.org/10.1111/jvs.12260
Access Level:acceso abierto
Palavra-chave:Annual plants
Community assembly
Functional divergence
Functional richness
Grazing
Species pool
Dehesa
Botánica
Ciencias Agrarias / Agricultura
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spelling Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbanceCarmona, Carlos P.Mason, Norman W HMartín Azcarate, FranciscoPeco Vázquez, BegoñaAnnual plantsCommunity assemblyFunctional divergenceFunctional richnessGrazingSpecies poolDehesaBotánicaCiencias Agrarias / AgriculturaThis is the peer reviewed version of the following article: Journal of Vegetation Science 26.3 (2015): 538-551, which has been published in final form at http://dx.doi.org/10.1111/jvs.12260. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.Questions: How do inter-annual fluctuations in water availability affect the functional trait patterns along spatial gradients of resource availability and disturbance? Location: Mediterranean grasslands in central Spain, near Madrid. Methods: We surveyed plant communities from 66 sites under different grazing regimes (from heavy grazing to grazing abandonment) in productive and unproductive habitats (corresponding to upper and lower topographic zones) in 2 yr with contrasting rainfall conditions. Community weighted mean (CWM) and Rao quadratic entropy for three key plant ecological strategy traits (specific leaf area, height and seed mass) were calculated for each community. We used null models to estimate functional richness (FR) and functional divergence (FD), the two components of functional diversity with the highest power to detect changes in community assembly processes across environmental gradients. Results: The patterns of CWM remained rather constant across years, with the only exception being seed mass, which experienced considerable temporal changes that suggested that heavy-seeded species are favoured under stressful conditions. Patterns for FR were consistent across years. They revealed both trait convergence and divergence depending on the niche axis and context. Convergence was observed for vegetative traits in unproductive habitats and seed mass in productive ones, and divergence for seed mass in unproductive habitats and vegetative traits in productive ones. In contrast, the patterns of FD of the vegetative traits changed considerably between years, as shown by increased divergence during the wet year in unproductive habitats and decreased divergence in grazing-abandoned productive habitats. Conclusions: Temporal changes in Mediterranean grassland composition depend on complex interactions between species traits, resource availability and disturbance. Increased rainfall appeared to have contrasting effects on assembly processes in stressful and productive habitats. In stressful habitats we found evidence that increased rainfall promoted niche complementarity, while in productive habitats, especially in the absence of disturbance, it increased trait convergenceFinancial support was received from the Spanish Ministry of Science (Projects CGL2007-63382 and CGL2011-24871), the Madrid Regional Government (Projects REMEDINAL- S0505/AMB-0335 and REMEDINAL2-S2009/AMB-1783), and the Spanish Ministry of Education (FPI for Carlos Pérez Carmona)Wiley-BlackwellDepartamento de EcologíaFacultad de Ciencias20152015-05-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/671948https://dx.doi.org/10.1111/jvs.12260reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6719482026-06-23T12:46:27Z
dc.title.none.fl_str_mv Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
title Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
spellingShingle Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
Carmona, Carlos P.
Annual plants
Community assembly
Functional divergence
Functional richness
Grazing
Species pool
Dehesa
Botánica
Ciencias Agrarias / Agricultura
title_short Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
title_full Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
title_fullStr Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
title_full_unstemmed Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
title_sort Inter-annual fluctuations in rainfall shift the functional structure of Mediterranean grasslands across gradients of productivity and disturbance
dc.creator.none.fl_str_mv Carmona, Carlos P.
Mason, Norman W H
Martín Azcarate, Francisco
Peco Vázquez, Begoña
author Carmona, Carlos P.
author_facet Carmona, Carlos P.
Mason, Norman W H
Martín Azcarate, Francisco
Peco Vázquez, Begoña
author_role author
author2 Mason, Norman W H
Martín Azcarate, Francisco
Peco Vázquez, Begoña
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Ecología
Facultad de Ciencias
dc.subject.none.fl_str_mv Annual plants
Community assembly
Functional divergence
Functional richness
Grazing
Species pool
Dehesa
Botánica
Ciencias Agrarias / Agricultura
topic Annual plants
Community assembly
Functional divergence
Functional richness
Grazing
Species pool
Dehesa
Botánica
Ciencias Agrarias / Agricultura
description This is the peer reviewed version of the following article: Journal of Vegetation Science 26.3 (2015): 538-551, which has been published in final form at http://dx.doi.org/10.1111/jvs.12260. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-05-01
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/671948
https://dx.doi.org/10.1111/jvs.12260
url http://hdl.handle.net/10486/671948
https://dx.doi.org/10.1111/jvs.12260
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301629

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