Warm acclimation reduces the sensitivity of Drosophila species to heat stress at ecologically relevant scales

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dc.catalogadorpva
dc.contributor.authorBaeza Icaza, Amalia
dc.contributor.authorPoblete Ahumada, Gabriela Antonia
dc.contributor.authorRezende Landaeta, Enrico
dc.contributor.authorPeralta-Maraver, Ignacio
dc.date.accessioned2025-04-28T17:49:50Z
dc.date.available2025-04-28T17:49:50Z
dc.date.issued2025
dc.description.abstractThermal acclimation is presumed to affect heat tolerance, though it is unclear how this should impact populations under realistic natural conditions. In this study, we quantified how thermal acclimation affects heat tolerance landscapes in Drosophila and, as a consequence, their predicted mortality in the field based on modelling with a dynamic thermal tolerance algorithm. We measured the thermal tolerance of four Drosophila species (D. repleta, D. hydei, D. simulans and D. virilis) acclimated to five constant temperatures covering a range from 18 to 30°C. We then combined this information with field temperatures to construct dynamic tolerance landscapes for these species and examine how survival varies over the course of a year. Our analyses reveal the effect of acclimation on an ecologically relevant scale, specifically through the study of cumulative mortality under natural thermal regimes. We explore how different species respond to thermal challenges during acclimation, generally showing an increase in critical temperature (CTmax) while either reducing or maintaining constant thermal sensitivity (z). Furthermore, we show that while acclimation presents a relatively modest improvement in thermal tolerance during short ramping laboratory trials, this response becomes stronger when tolerance estimates are translated into ecologically relevant timescales, such as annual survival. Our results indicate that acclimation to warm conditions can substantially increase Drosophila thermal tolerance, contradicting the idea that thermal acclimation in ectotherms has only a minor effect. Our work applies novel approaches to studying thermal tolerance and aims to highlight the role of acclimation in ameliorating the impact of global warming.
dc.description.funderEuropean Commission
dc.description.funderHORIZON
dc.description.funderFONDECYT
dc.description.funderConsejería de Universidad, Investigación e Innovación of the Junta de Andalucía
dc.fechaingreso.objetodigital2025-04-28
dc.format.extent12 página
dc.fuente.origenORCID
dc.identifier.doi10.1111/1365-2656.70018
dc.identifier.eissn1365-2656
dc.identifier.issn0021-8790
dc.identifier.scopusidSCOPUS_ID:105001539415
dc.identifier.urihttps://doi.org/10.1111/1365-2656.70018
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/103492
dc.information.autorucFacultad de Ciencias Biológicas; Baeza Icaza, Amalia; S/I; 1135331
dc.information.autorucFacultad de Ciencias Biológicas; Poblete Ahumada, Gabriela Antonia; S/I; 1135361
dc.information.autorucFacultad de Ciencias Biológicas; Rezende Landaeta, Enrico; 0000-0002-6245-9605; 104299
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherJohn Wiley and Sons Inc
dc.revistaJournal of Animal Ecology
dc.rightsacceso abierto
dc.rights.licenseAttribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectDrosophila
dc.subjectGlobal warming
dc.subjectPredictive ecology
dc.subjectThermal acclimation
dc.subjectThermal death time curves
dc.subjectTolerance landscapes
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.subject.ods13 Climate action
dc.subject.ods15 Life on land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleWarm acclimation reduces the sensitivity of Drosophila species to heat stress at ecologically relevant scales
dc.typeartículo
sipa.codpersvinculados1135331
sipa.codpersvinculados1135361
sipa.codpersvinculados104299
sipa.trazabilidadORCID;2025-04-21
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