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Fire regime attributes shape pre-fire vegetation characteristics controlling extreme fire behavior under different bioregions in Spain

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dc.contributor.authorBeltrán-Marcos, David
dc.contributor.authorSuárez-Seoane, Susana
dc.contributor.authorFernández-Guisuraga, José Manuel
dc.contributor.authorAzevedo, João
dc.contributor.authorCalvo, Leonor
dc.date.accessioned2024-06-13T09:14:53Z
dc.date.available2024-06-13T09:14:53Z
dc.date.issued2024
dc.description.abstractDesigning effective land management actions addressed to increase ecosystem resilience requires us to understand how shifting fire regimes are shaping landscapes. In this study, we aim to assess the link between fire regime and pre-fire vegetation biophysical characteristics (type, amount, and structure) in controlling extreme fire behavior across Atlantic-Transition-Mediterranean bioregions in Spain marked by different summer drought conditions and dominant plant regenerative traits. We used remote sensing metrics to estimate fire severity and pre-fire vegetation characteristics in eight study areas recently affected by large and highly severe wildfires under different environmental contexts. Furthermore, to account for fire regime attributes, we retrieved, for each target wildfire, the perimeter of the past wildfires that occurred between 1985 and 2022 and calculated fire recurrence, the time the since last fire (TSLF), and fire severity of previous wildfires (FSPW). The effect of fire regime attributes on pre-fire vegetation was examined using generalized linear mixed models (GLMMs). Results: During the study period, fire recurrence decreased significantly in all bioregions analyzed. Fire severity increased under Atlantic conditions and decreased under Mediterranean environmental context, where the time since the last fire was the highest. Pre-fire fuel type and amount were identified as primary drivers of fire severity, being both strongly modulated by fire regime but following distinct mechanisms depending on the environmental context of each bioregion. In Atlantic sites, more frequent past wildfires of low to moderate fire severity were associated with a greater dominance of fire-prone shrublands with moderate fuel amounts, which increases the risk of severe wildfires. Similar trends occurred in Transition and Mediterranean sites but under the previous occurrence of highly severe wildfires. Specifically, long times after highly severe wildfires (> 30 years) increased fuel amount in conifer-dominated ecosystems in all bioregions analyzed, heightening susceptibility to extreme fire behavior. Conclusions: Our findings highlight that fire-prone ecosystems need adaptative management strategies to mitigate the effects of fire regime changes, but these actions should be specific to the climatic and ecological context.pt_PT
dc.description.sponsorshipThis study was financially supported by the Spanish Ministry of Science and Innovation in the framework of LANDSUSFIRE project (PID2022-139156OB-C21, PID2022-139156OB-C22) within the National Program for the Promotion of Scientific-Technical Research (2021–2023); by the Spanish Ministry of Science and Innovation and the Next-Generation Funds of the European Union (EU) in the framework of the FIREMAP project (TED2021-130925B-I00); by the Regional Government of the Principality of Asturias, the Foundation for the Promotion of Applied Scientific Research and Technology in Asturias (FICYT) and the European Regional Development Fund (ERDF) in the framework of the REWILDING project (AYUD/2021/51261); by the Regional Government of Castile and León in the framework of the IA-FIREXTCyL project (LE081P23); and by Portuguese funds through FCT-Portuguese Foundation for Science and Technology, project UIDB/04033/2020 (DOI:https://doi.org/10.54499/UIDB/04033/2020). David Beltrán-Marcos was supported by a pre-doctoral contract from the Regional Government of Castile and León co-financed by the European Social Fund (EDU/556/2019).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBeltrán-Marcos, David; Suárez-Seoane, Susana; Fernández-Guisuraga, José Manuel; Azevedo, João; Calvo, Leonor (2024). Fire regime attributes shape pre-fire vegetation characteristics controlling extreme fire behavior under different bioregions in Spain. Fire Ecology. ISSN 1933-9747. 20:1, p. 1-22pt_PT
dc.identifier.doi10.1186/s42408-024-00276-wpt_PT
dc.identifier.issn1933-9747
dc.identifier.urihttp://hdl.handle.net/10198/29888
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectdNBRpt_PT
dc.subjectFire historypt_PT
dc.subjectFire severitypt_PT
dc.subjectFire recurrencept_PT
dc.subjectFuel typept_PT
dc.subjectFuel amountpt_PT
dc.titleFire regime attributes shape pre-fire vegetation characteristics controlling extreme fire behavior under different bioregions in Spainpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.citation.endPage22pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFire Ecologypt_PT
oaire.citation.volume20pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAzevedo
person.givenNameJoão C.
person.identifier.ciencia-id3F1F-0829-5878
person.identifier.orcid0000-0002-3061-8261
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione15b0e75-689e-4be0-942c-1958cfefdb0f
relation.isAuthorOfPublication.latestForDiscoverye15b0e75-689e-4be0-942c-1958cfefdb0f
relation.isProjectOfPublicationac4fb709-719a-450b-8c96-17592d46f5e9
relation.isProjectOfPublication.latestForDiscoveryac4fb709-719a-450b-8c96-17592d46f5e9

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