Temperature variability and metabolic adaptation in terrestrial and aquatic ectotherms

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dc.contributor.authorCarter, Mauricio J.
dc.contributor.authorCortes, Pablo A.
dc.contributor.authorRezende, Enrico L.
dc.date.accessioned2023-10-23T03:01:11Z
dc.date.available2023-10-23T03:01:11Z
dc.date.issued2023-07
dc.descriptionINDEXACIÓN: SCOPUS.es
dc.description.abstractThermodynamics is a major factor determining rates of energy expenditure, rates of biochemical dynamics, and ultimately the biological and ecological processes linked with resilience to global warming in ectothermic organisms. Nonetheless, whether ectothermic organisms exhibit general adaptive metabolic responses to cope with worldwide variation in thermal conditions has remained as an open question. Here we combine a model comparison approach with a global dataset of standard metabolic rates (SMR), including 1,160 measurements across 788 species of aquatic invertebrates, insects, fishes, amphibians and reptiles, to investigate the association between metabolic rates and environmental temperatures in their respective habitats. Our analyses suggest that variation in SMR after removing allometric and thermodynamic effects is best explained by the temperature range encountered across seasons, which always provided a better fit than the average temperature for the hottest and coldest month and mean annual temperatures. This pattern was consistent across taxonomic groups and robust to sensitivity analyses. Nonetheless, aquatic and terrestrial lineages responded differently to seasonality, with SMR declining – 6.8% °C−1 of thermal range across seasons in aquatic organisms and increasing 2.8% °C−1 in terrestrial organisms. These responses may reflect alternative strategies to mitigate the impact of increments in warmer temperatures on energy expenditure, either by means of metabolic reduction in thermally homogeneous water bodies or effective behavioral thermoregulation to exploit temperature heterogeneity on land. © 2023 Elsevier Ltdes
dc.identifier.citationJournal of Thermal Biology, Volume 115, July 2023, Article number 103565es
dc.identifier.doi10.1016/j.jtherbio.2023.103565
dc.identifier.issn03064565
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/53537
dc.language.isoenes
dc.publisherElsevieres
dc.subjectGlobal distributiones
dc.subjectMetabolic rateses
dc.subjectTemperature variabilityes
dc.subjectThermal adaptationes
dc.subjectThermodynamicses
dc.titleTemperature variability and metabolic adaptation in terrestrial and aquatic ectothermses
dc.typeArtículoes
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