Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species

Although some invasive plants are cosmopolitan, not all ecosystems are invaded to the same degree. Yet there is little experimental work on how ecosystem resistance to invasion at the establishment phase differs among ecosystems. We conducted two field sowing experiments in two consecutive years to...

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Detalhes bibliográficos
Autores: Vilà, Montserrat, Siamantziouras, Akis-Stavros D., Brundu, Giuseppe, Camarda, Ignazio, Lambdon, Philip, Médail, Frédéric, Moragues, Eva, Suehs, Carey M., Traveset, Anna, Troumbis, Andreas Y., Hulme, Philip E.
Formato: artículo
Fecha de publicación:2008
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/54749
Acesso em linha:http://hdl.handle.net/10261/54749
Access Level:acceso abierto
Palavra-chave:Ailanthus altissima
Biological invasions
Carpobrotus spp.
nvasibility
Oxalis pes-caprae
plant invader
Species richness
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spelling Widespread resistance of Mediterranean island ecosystems to the establishment of three alien speciesVilà, MontserratSiamantziouras, Akis-Stavros D.Brundu, GiuseppeCamarda, IgnazioLambdon, PhilipMédail, FrédéricMoragues, EvaSuehs, Carey M.Traveset, AnnaTroumbis, Andreas Y.Hulme, Philip E.Ailanthus altissimaBiological invasionsCarpobrotus spp.nvasibilityOxalis pes-capraeplant invaderSpecies richnessAlthough some invasive plants are cosmopolitan, not all ecosystems are invaded to the same degree. Yet there is little experimental work on how ecosystem resistance to invasion at the establishment phase differs among ecosystems. We conducted two field sowing experiments in two consecutive years to examine establishment of the deciduous tree Ailanthus altissima, the succulent subshrub Carpobrotus spp. and the annual geophyte Oxalis pes-caprae in coastal dunes, shrublands and oldfields in more than 200 sites across six Mediterranean Basin islands differing in climatic conditions and local species richness. Establishment success (i.e. percentage of plots with at least one seedling) and rates (i.e. seedling to sown seed ratio) were low, especially for Ailanthus even when account- ing for differences in seed viability. Oxalis was capable of producing a new cohort of seedlings the year following planting. By contrast, all Ailanthus seedlings and half the Carpobrotus seedlings died following the first summer. Differences in establishment success and rates among ecosystems were species-, island- and year-dependent. Differences in precipitation and mean temperature were associated with differences in establishment rates across sites. Establishment rates tended to be positively correlated with cumulative precipitation and negatively with mean Ta. Unexpectedly, native species richness was not a good predictor of seedling establishment, except for higher Oxalis establishment success in species rich habitats. By conducting field sowing tests at multiple sites across a region we found that except for Oxalis, Mediterranean island ecosystems are quite resistant to invader establishment. These results suggest that differences in the degree of invasion between ecosystems and islands might be more dependent upon the influence of invasion event factors (e.g. propagule pressure) or factors acting at a later life-history stages rather than differences in the resistance imposed by ecosystems to invader recruitment. Moreover, our results support the notion that in Mediterranean ecosystems invasions are highly idiosyncratic events and strongly dependent on water availability conditionsPeer reviewedBlackwell Publishing201220122008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/54749reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1472-4642.2008.00503.xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/547492026-05-22T06:33:51Z
dc.title.none.fl_str_mv Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
title Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
spellingShingle Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
Vilà, Montserrat
Ailanthus altissima
Biological invasions
Carpobrotus spp.
nvasibility
Oxalis pes-caprae
plant invader
Species richness
title_short Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
title_full Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
title_fullStr Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
title_full_unstemmed Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
title_sort Widespread resistance of Mediterranean island ecosystems to the establishment of three alien species
dc.creator.none.fl_str_mv Vilà, Montserrat
Siamantziouras, Akis-Stavros D.
Brundu, Giuseppe
Camarda, Ignazio
Lambdon, Philip
Médail, Frédéric
Moragues, Eva
Suehs, Carey M.
Traveset, Anna
Troumbis, Andreas Y.
Hulme, Philip E.
author Vilà, Montserrat
author_facet Vilà, Montserrat
Siamantziouras, Akis-Stavros D.
Brundu, Giuseppe
Camarda, Ignazio
Lambdon, Philip
Médail, Frédéric
Moragues, Eva
Suehs, Carey M.
Traveset, Anna
Troumbis, Andreas Y.
Hulme, Philip E.
author_role author
author2 Siamantziouras, Akis-Stavros D.
Brundu, Giuseppe
Camarda, Ignazio
Lambdon, Philip
Médail, Frédéric
Moragues, Eva
Suehs, Carey M.
Traveset, Anna
Troumbis, Andreas Y.
Hulme, Philip E.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ailanthus altissima
Biological invasions
Carpobrotus spp.
nvasibility
Oxalis pes-caprae
plant invader
Species richness
topic Ailanthus altissima
Biological invasions
Carpobrotus spp.
nvasibility
Oxalis pes-caprae
plant invader
Species richness
description Although some invasive plants are cosmopolitan, not all ecosystems are invaded to the same degree. Yet there is little experimental work on how ecosystem resistance to invasion at the establishment phase differs among ecosystems. We conducted two field sowing experiments in two consecutive years to examine establishment of the deciduous tree Ailanthus altissima, the succulent subshrub Carpobrotus spp. and the annual geophyte Oxalis pes-caprae in coastal dunes, shrublands and oldfields in more than 200 sites across six Mediterranean Basin islands differing in climatic conditions and local species richness. Establishment success (i.e. percentage of plots with at least one seedling) and rates (i.e. seedling to sown seed ratio) were low, especially for Ailanthus even when account- ing for differences in seed viability. Oxalis was capable of producing a new cohort of seedlings the year following planting. By contrast, all Ailanthus seedlings and half the Carpobrotus seedlings died following the first summer. Differences in establishment success and rates among ecosystems were species-, island- and year-dependent. Differences in precipitation and mean temperature were associated with differences in establishment rates across sites. Establishment rates tended to be positively correlated with cumulative precipitation and negatively with mean Ta. Unexpectedly, native species richness was not a good predictor of seedling establishment, except for higher Oxalis establishment success in species rich habitats. By conducting field sowing tests at multiple sites across a region we found that except for Oxalis, Mediterranean island ecosystems are quite resistant to invader establishment. These results suggest that differences in the degree of invasion between ecosystems and islands might be more dependent upon the influence of invasion event factors (e.g. propagule pressure) or factors acting at a later life-history stages rather than differences in the resistance imposed by ecosystems to invader recruitment. Moreover, our results support the notion that in Mediterranean ecosystems invasions are highly idiosyncratic events and strongly dependent on water availability conditions
publishDate 2008
dc.date.none.fl_str_mv 2008
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/54749
url http://hdl.handle.net/10261/54749
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1472-4642.2008.00503.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
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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score 15,811543

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