Thermal tolerance and survival responses to scenarios of experimental climatic change: changing thermal variability reduces the heat and cold tolerance in a fly

Simple item page
dc.contributor.authorBozinovic, Francisco
dc.contributor.authorMedina, Nadia R.
dc.contributor.authorAlruiz, Jose M.
dc.contributor.authorCavieres, Grisel
dc.contributor.authorSabat, Pablo
dc.date.accessioned2025-01-23T21:29:56Z
dc.date.available2025-01-23T21:29:56Z
dc.date.issued2016
dc.description.abstractClimate change poses one of the greatest threats to biodiversity. Most analyses of the impacts have focused on changes in mean temperature, but increasing variance will also impact organisms and populations. We assessed the combined effects of the mean and the variance of temperature on thermal tolerances-i.e., critical thermal maxima, critical thermal minima, scope of thermal tolerance, and survival in Drosophila melanogaster. Our six experimental climatic scenarios were: constant mean with zero variance or constant variance or increasing variance; changing mean with zero variance or constant variance or increasing variance. Our key result was that environments with changing thermal variance reduce the scope of thermal tolerance and survival. Heat tolerance seems to be conserved, but cold tolerance decreases significantly with mean low as well as changing environmental temperatures. Flies acclimated to scenarios of changing variance-with either constant or changing mean temperatures-exhibited significantly lower survival rate. Our results imply that changing and constant variances would be just as important in future scenarios of climate change under greenhouse warming as increases in mean annual temperature. To develop more realistic predictions about the biological impacts of climate change, such interactions between the mean and variance of environmental temperature should be considered.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00360-016-0980-6
dc.identifier.eissn1432-136X
dc.identifier.issn0174-1578
dc.identifier.urihttps://doi.org/10.1007/s00360-016-0980-6
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101441
dc.identifier.wosidWOS:000378572700004
dc.issue.numero5
dc.language.isoen
dc.pagina.final587
dc.pagina.inicio581
dc.revistaJournal of comparative physiology b-biochemical systems and environmental physiology
dc.rightsacceso restringido
dc.subjectGlobal warming
dc.subjectExperimental climate scenarios
dc.subjectTemperature mean
dc.subjectTemperature variation
dc.subjectCritical thermal maxima and minima
dc.subjectScope of thermal tolerance
dc.subjectSurvival
dc.subjectDrosophila melanogaster
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleThermal tolerance and survival responses to scenarios of experimental climatic change: changing thermal variability reduces the heat and cold tolerance in a fly
dc.typeartículo
dc.volumen186
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas