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dc.contributor.authorAntón, Alexander García
dc.contributor.authorGarza, Vicente
dc.contributor.authorJustribó, Jorge Hernández
dc.contributor.authorTraba, Juan
dc.contributor.otherUAM. Departamento de Ecologíaes_ES
dc.date.accessioned2020-04-17T09:29:29Z
dc.date.available2020-04-17T09:29:29Z
dc.date.issued2019-02-01
dc.identifier.citationPlos One 14.2 (2019): e0211549en_US
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10486/690777
dc.description.abstractIn this work, we analyse factors explaining the distribution and range regression of Dupont’s lark in Spain, the only European country in which this threatened alaudid is present. Dupont’s lark is an extremely elusive and scarce species, distributed across a reduced and strongly fragmented range, showing a metapopulational structure with unknown dispersive and connective mechanisms. We used maximum entropy modelling (Maxent) on nearly 15,000 Dupont’s lark observations (1985–2015) to assess the probability of presence at a 1 km resolution across its European range. Moreover, we tested the probability of extinction by comparing pre- and post-2000 observations by means of a GLM over a subset of cells with presence-absence data. We obtained strong model fitting (AUC = 0.919), in which species occurrence was explained by low values of plant productivity (NDVI), climate (high temperature range and medium annual precipitation), land use (increasing with sclerophyllous scrubland), flat topography and human disturbance (associated with low human population density). The species also tolerates dry farming, but not other farm types or forest cover. The probability map identified two main regions known as the species’ core areas: the steppes of the Iberian System and the Ebro Valley. The North Plateau is characterised by a dispersed structure of small and very fragmented patches of suitable habitat, while a succession of discontinuous probability patches form an Eastern Corridor connecting the central core areas to the southernmost populations. Finally, the model identified small and isolated patches of high probability of presence along the eastern coastline. The species tends to occur in the best available areas but, at the same time, the model revealed a large area of suitable but unoccupied habitat. Our results correct the previous estimation of occupation area from 1,480 to 1,010.78 km2, a reduction of 26.22%. The current distribution of Dupont’s lark is almost completely covered by Important Bird Areas (IBAs), highlighting their importance for bird conservation, but only 44.89% is included in Natura 2000 Special Protection Areas (SPAs). A comparison of pre- and post-2000 periods revealed a range contraction of 44%. Probability of extinction increased with higher temperature range and lower annual precipitation, and with decreases in population density, which suggests that this species is extremely vulnerable to both climate change and rural abandonment, due to its dependence on traditional grazing. These results suggest the need for a re-evaluation of the conservation status of Dupont’s lark in Spain. They urge the preservation of not only current extant populations, but also the unoccupied suitable areas that could be critical for metapopulation structure, and the development of policies addressing the preservation of traditional grazingen_US
dc.description.sponsorshipData used in this paper come from different projects, in particular the II National Census (2004-2006), granted by the Spanish Ministry of Environment; and the Dupont’s Lark Monitoring Program in Medinaceli Region, funded by Fundación Patrimonio Natural de Castilla y León. This is a contribution to the Excellence Network Remedinal 3CM (S2013/MAE-2719), supported by Comunidad de Madrid, and to the projects “Criteria for the management and conservation of the Spanish population of Dupont’s Lark, supported by Fundación Biodiversidad, of the Ministry of Agriculture, Food and Environment; LIFE Ricotí (LIFE15-NAT-ES-000802), supported by the European Commission; and BBVA-Dron Ricoti, funded by the BBVA Foundation. INECO provided support in the form of salary for author JHZ, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific role of this author is articulated in the ‘author contributions’ sectionen_US
dc.format.extent22 pag.en_US
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherPublic Library of Scienceen_US
dc.relation.ispartofPlos Oneen_US
dc.rights© 2019 García Antón et ales_ES
dc.subject.otherDupont’s larken_US
dc.subject.otherMaximum entropy modelling (Maxent)en_US
dc.subject.otherProbability of extinctionen_US
dc.titleFactors affecting Dupont´s lark distribution and range regression in Spainen_US
dc.typearticleen
dc.subject.ecienciaBiología y Biomedicina / Biologíaes
dc.relation.publisherversionhttps://doi.org/10.1371/journal.pone.0219092
dc.identifier.doi10.1371/journal.pone.0211549
dc.identifier.publicationfirstpagee0211549-1
dc.identifier.publicationissue2
dc.identifier.publicationlastpagee0211549-22
dc.identifier.publicationvolume14
dc.relation.projectIDComunidad de Madrid. S2013/MAE-2719es_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.rights.ccReconocimientoes_ES
dc.rights.accessRightsopenAccessen
dc.authorUAMTraba Díaz, Juan (258812)
dc.facultadUAMFacultad de Ciencias


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