Topography modulates climate sensitivity of multidecadal trends of holm oak decline

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dc.bibliographicCitation.titleGlobal Change Biologyen
dc.contributor.authorLópez Ballesteros, Anaes_ES
dc.contributor.authorRodriguez Caballero, Emilioes_ES
dc.contributor.authorMoreno, Gerardoes_ES
dc.contributor.authorEscribano, Paulaes_ES
dc.contributor.authorHereş, Ana Mariaes_ES
dc.contributor.authorCuriel Yuste, Jorgees_ES
dc.coverage.spatialEspañaes_ES
dc.date.accessioned2023-09-28T11:15:18Z
dc.date.available2023-09-28T11:15:18Z
dc.date.issued2023es_ES
dc.date.updated2023-09-28T11:03:05Z
dc.description.abstractForest decline events have increased worldwide over the last decades being holm oak (Quercus ilex L.) one of the tree species with the most worrying trends across Europe. Since this is one of the tree species with the southernmost distribution within the European continent, its vulnerability to climate change is a phenomenon of enormous ecological importance. Previous research identified drought and soil pathogens as the main causes behind holm oak decline. However, despite tree health loss is a multifactorial phenomenon where abiotic and biotic factors interact in time and space, there are some abiotic factors whose influence has been commonly overlooked. Here, we evaluate how land use (forests versus savannas), topography, and climate extremes jointly determine the spatiotemporal patterns of holm oak defoliation trends over almost three decades (1987–2014) in Spain, where holm oak represents the 25% of the national forested area. We found an increasing defoliation trend in 119 out of the total 134 holm oak plots evaluated, being this defoliation trend significantly higher in forests compared with savannas. Moreover, we have detected that the interaction between topography (which covariates with the land use) and summer precipitation anomalies explains trends of holm oak decline across the Mediterranean region. While a higher occurrence of dry summers increases defoliation trends in steeper terrains where forests dominate, an inverse relationship was found in flatter terrains where savannas are mainly located. These opposite relationships suggest different causal mechanisms behind decline. Whereas hydric stress is likely to occur in steeper terrains where soil water holding capacity is limited, soil waterlogging usually occurs in flatter terrains what increases tree vulnerability to soil pathogens. Our results contribute to the growing evidence of the influence of local topography on forest resilience and could assist in the identification of potential tree decline hotspots and its main causes over the Mediterranean region.en
dc.description.sponsorshipEste trabajo ha contado con el apoyo de un contrato postdoctoral Juan de la Cierva-Incorporación IJC2020-045630-I y el proyecto MANAGE4FUTURE (TED2021-129499A-I00) ambos financiados por MCIN/AEI /10.13039/501100011033 y la Unión Europea NextGenerationEU/PRTR. Ana-Maria Hereş fue financiada por el proyecto REASONING (PNIII-P1-1.1-TE-2019-1099) a través de UEFISCDI (Ministerio rumano de Educación e Investigación). Esta investigación ha contado con el apoyo del BERC 2018-2021 (Gobierno Vasco), y la Acreditación de Excelencia BC3 María de Maeztu 2018-2022, Ref.MDM-2017-0714 (Ministerio de Ciencia, Innovación y Universidades de España).es_ES
dc.description.statusPublishedes_ES
dc.identifier.citationLópez‐Ballesteros, A., Rodríguez‐Caballero, E., Moreno, G., Escribano, P., Hereş, A., & Yuste, J. C. (2023). Topography modulates climate sensitivity of multidecadal trends of holm oak decline. Global Change Biology, gcb.16927. https://doi.org/10.1111/gcb.16927
dc.identifier.issn13541013
dc.identifier.urihttp://hdl.handle.net/10532/6616
dc.language.isoenes_ES
dc.relation.datahttps://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fgcb.16927&file=gcb16927-sup-0001-Supinfo.docxes_ES
dc.relation.doihttps://doi.org/10.1111/gcb.16927es_ES
dc.relation.urihttps://doi.org/10.1111/gcb.16927es_ES
dc.relation.urihttps://doi.org/10.1101/2023.03.09.531879es_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Spaines_ES
dc.subject.agrovocQuercus ilexes
dc.subject.agrovocEspañaes
dc.subject.agrovocClima mediterráneoes
dc.subject.agrovocDeclive forestales
dc.subject.agrovocVariación del climaes
dc.titleTopography modulates climate sensitivity of multidecadal trends of holm oak declineen
dc.typearticle*
dc.type.refereedRefereedes_ES
dc.type.specifiedArticlees_ES

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