Spatial distribution and interannual variability of coastal fog and low clouds cover in the hyperarid Atacama Desert and implications for past and present Tillandsia landbeckii ecosystems

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dc.contributor.authordel Rio, Camilo
dc.contributor.authorLobos Roco, Felipe
dc.contributor.authorLatorre, Claudio
dc.contributor.authorKoch, Marcus A.
dc.contributor.authorGarcia, Juan Luis
dc.contributor.authorOsses, Pablo
dc.contributor.authorLambert, Fabrice
dc.contributor.authorAlfaro, Fernando
dc.contributor.authorSiegmund, Alexander
dc.date.accessioned2024-01-10T14:22:55Z
dc.date.available2024-01-10T14:22:55Z
dc.date.issued2021
dc.description.abstractThe hyperarid Atacama Desert coast receives scarce moisture inputs mainly from the Pacific Ocean in the form of marine advective fog. The collected moisture supports highly specialized ecosystems, where the bromeliad Tillandsia landbeckii is the dominant species. The fog and low clouds (FLCs) on which these ecosystems depend are affected in their interannual variability and spatial distribution by global phenomena, such as ENSO. Yet, there is a lack of understanding of how ENSO influences recent FLCs spatial changes and their interconnections and how these variations can affect existing Tillandsia stands. In this study, we analyze FLCs occurrence, its trends and the influence of ENSO on the interannual variations of FLCs presence by processing GOES satellite images (1995-2017). Our results show that ENSO exerts a significant influence over FLCs interannual variability in the Atacama at similar to 20 degrees S. Linear regression analyses reveal a relation between ENSO3.4 anomalies and FLCs with opposite seasonal effects depending on the ENSO phase. During summer (winter), the ENSO warm phase is associated with an increase (decrease) of the FLCs occurrence, whereas the opposite occurs during ENSO cool phases. In addition, the ONI Index explains up to similar to 50 and similar to 60% variance of the interannual FLCs presence in the T. landbeckii site during summer and winter, respectively. Finally, weak negative (positive) trends of FLCs presence are observed above (below) 1000 m a. s. l. These results have direct implications for understanding the present and past distribution of Tillandsia ecosystems under the extreme conditions characterizing our study area.
dc.description.funderProjekt DEAL
dc.description.funderANID/FONDECYT of the Ministry of Science, Chile
dc.description.funderBMBF (Germany)
dc.description.funderANID/PCI (Chile)
dc.fechaingreso.objetodigital2024-03-14
dc.format.extent23 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00606-021-01782-z
dc.identifier.eissn1615-6110
dc.identifier.issn0378-2697
dc.identifier.urihttps://doi.org/10.1007/s00606-021-01782-z
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/80016
dc.identifier.wosidWOS:000696205200001
dc.information.autorucFacultad de Historia, Geografía y Ciencia Política; Lambert No Informado, Fabrice; S/I; 250043
dc.issue.numero5
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherSPRINGER WIEN
dc.revistaPLANT SYSTEMATICS AND EVOLUTION
dc.rightsacceso abierto
dc.subjectChile
dc.subjectENSO
dc.subjectFog ecosystems
dc.subjectGOES
dc.subjectInterdecadal Pacific Oscillation
dc.subjectSoutheast Pacific Ocean
dc.subjectTARAPACA REGION
dc.subjectCLIMATE-CHANGE
dc.subjectRADIATION-FOG
dc.subjectNORTHERN
dc.subjectSTRATOCUMULUS
dc.subjectCORE
dc.subjectVEGETATION
dc.subjectSTRATUS
dc.subjectIMPACT
dc.subjectAVHRR
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleSpatial distribution and interannual variability of coastal fog and low clouds cover in the hyperarid Atacama Desert and implications for past and present Tillandsia landbeckii ecosystems
dc.typeartículo
dc.volumen307
sipa.codpersvinculados250043
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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