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dc.creatorRedondo Gómez, Susanaes
dc.creatorCastillo Segura, Jesús Manueles
dc.creatorLuque, Carlos J.es
dc.creatorLuque Palomo, María Teresaes
dc.creatorFigueroa Clemente, Manuel Enriquees
dc.creatorDavy, Anthony Johnes
dc.date.accessioned2020-05-11T15:14:31Z
dc.date.available2020-05-11T15:14:31Z
dc.date.issued2007
dc.identifier.citationRedondo Gómez, S., Castillo Segura, J.M., Luque, C.J., Luque Palomo, M.T., Figueroa Clemente, M.E. y Davy, A.J. (2007). Fundamental niche differentiation in subspecies of Sarcocornia perennis on a salt marsh elevational gradient. Marine Ecology - Progress Series, 347, 15-20.
dc.identifier.issn0171-8630es
dc.identifier.issn1616-1599es
dc.identifier.urihttps://hdl.handle.net/11441/96395
dc.description.abstractSelection pressures associated with strong environmental gradients on salt marshes provide a mechanism for the genetic subdivision of species. We investigated the importance of differentiated habitat niches in explaining the distributions of 2 forms of the halophyte Sarcocornia perennis: ssp. perennis in lower/middle marshes and the Iberian endemic ssp. alpini on more elevated salines. The fundamental niches of the 2 subspecies were investigated at the Odiel marshes, SW Spain with an experimental transplantation to 4 points along an elevation gradient. Subspecies perennis survived at the 3 lower elevations, from +2.26 to +2.84 m relative to Spanish Hydrographic Zero (SHZ) and flowered only at the highest of these locations. Subspecies (ssp.) alpini survived only at the 2 higher elevations (+2.84 and +3.65 m SHZ), flowering only at the highest location. As expected, sediment redox potential increased at transplant sites up the marsh, with decreasing tidal submergence; sediment salinity also increased and its water content decreased with increasing elevation. Sediment pH also declined with increasing elevation. Air conditions in the Mediterranean summer become cooler and moister with proximity to the sea. The failure of ssp. alpini to survive below its limit was attributed to its intolerance of increasingly hypoxic, reducing sediments. The failure of ssp. perennis to survive above its limit was associated with hypersalinity and water stress in summer. The fundamental niches of the 2 subspecies showed limited overlap (i.e. one transplantation site): that of ssp. perennis approximates the realized niche observed in the field but the realized niche of ssp. alpini appears to be more restricted than its fundamental niche.es
dc.description.sponsorshipMinisterio de Ciencia y Tecnología CTM2005- 05011es
dc.formatapplication/pdfes
dc.format.extent6 p.es
dc.language.isoenges
dc.publisherInter-Research Science Publishinges
dc.relation.ispartofMarine Ecology - Progress Series, 347, 15-20.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHalophytees
dc.subjectRealized nichees
dc.subjectRedox potentiales
dc.subjectSalinityes
dc.subjectTransplantation experimentes
dc.titleFundamental niche differentiation in subspecies of Sarcocornia perennis on a salt marsh elevational gradientes
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Biología Vegetal y Ecologíaes
dc.relation.projectIDCTM2005- 05011es
dc.relation.publisherversionhttp://dx.doi.org/10.3354/meps07041es
dc.identifier.doi10.3354/meps07041es
dc.journaltitleMarine Ecology - Progress Serieses
dc.publication.volumen347es
dc.publication.initialPage15es
dc.publication.endPage20es

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