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dc.contributor.authorOrtego, Joaquín-
dc.contributor.authorAguirre, María P.-
dc.contributor.authorNoguerales, Víctor-
dc.contributor.authorCordero, Pedro J.-
dc.identifier.citationEvolutionary Applications 8(6): 621-632 (2015)es_ES
dc.description.abstractAnthropogenic habitat fragmentation has altered the distribution and population sizes in many organisms worldwide. For this reason, understanding the demographic and genetic consequences of this process is necessary to predict the fate of populations and establish management practices aimed to ensure their viability. In this study, we analyse whether the spatial configuration of remnant semi-natural habitat patches within a chronically fragmented landscape has shaped the patterns of genetic diversity and structure in the habitat-specialist esparto grasshopper (Ramburiella hispanica). In particular, we predict that agricultural lands constitute barriers to gene flow and hypothesize that fragmentation has restricted interpopulation dispersal and reduced local levels of genetic diversity. Our results confirmed the expectation that isolation and habitat fragmentation have reduced the genetic diversity of local populations. Landscape genetic analyses based on circuit theory showed that agricultural land offers ~1000 times more resistance to gene flow than semi-natural habitats, indicating that patterns of dispersal are constrained by the spatial configuration of remnant patches of suitable habitat. Overall, this study shows that semi-natural habitat patches act as corridors for interpopulation gene flow and should be preserved due to the disproportionately large ecological function that they provide considering their insignificant area within these human-modified landscapes.es_ES
dc.description.sponsorshipJO was supported by Juan de la Cierva, Severo Ochoa (EBD) (SEV-2012-0262) and Ramón y Cajal Research Fellowships. MPA was supported by a technician contract from Ministerio de Ciencia e Innovación. VN was supported by a FPI predoctoral fellowship from Ministerio de Economía y Competitividad. This work received financial support from grants CGL2011-25053 (Ministerio de Ciencia e Innovación and European Social Fund), POII10-0197-0167 (Junta de Comunidades de Castilla-La Mancha and European Social Fund) and UNCM08-1E-018 (European Regional Development Fund).-
dc.publisherJohn Wiley & Sonses_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectCircuit theoryes_ES
dc.subjectGene flowes_ES
dc.subjectGenetic diversityes_ES
dc.subjectGenetic structurees_ES
dc.subjectPopulation fragmentationes_ES
dc.subjectPopulation geneticses_ES
dc.subjectSpecialist specieses_ES
dc.titleConsequences of extensive habitat fragmentation in landscape-level patterns of genetic diversity and structure in the Mediterranean esparto grasshopperes_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/ 10.1111/eva.12273es_ES
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
dc.contributor.funderJunta de Comunidades de Castilla-La Mancha-
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