Thermal tolerances in rodents: species that evolved in cold climates exhibit a wider thermoneutral zone

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dc.contributor.authorBozinovic, Francisco
dc.contributor.authorFerri-Yanez, Francisco
dc.contributor.authorNaya, Hugo
dc.contributor.authorAraujo, Miguel B.
dc.contributor.authorNaya, Daniel E.
dc.date.accessioned2025-01-23T21:40:06Z
dc.date.available2025-01-23T21:40:06Z
dc.date.issued2014
dc.description.abstractBackground: Thermal constraints are often invoked to explain animal distributions. Maximum temperatures are less variable in different biomes around the globe than are minimum temperatures. Considerable information is available for mammals about basal metabolic rate and thermal conductance.
dc.description.abstractAims: Evaluate the correlation of lower critical temperature (T-LC), upper critical temperature (T-UC) or TNZ breadth (T-UC - T-LC = TNZ(b)) with three ambient temperatures in rodent species.
dc.description.abstractHypotheses: T-LC, T-UC and TNZ(b) should be adjusted by selective processes to the ambient temperature that is most usually experienced by mammal species. TNZ(b) should be greater in species inhabiting colder habitats.
dc.description.abstractMethods: We used T-LC, T-UC data from published studies of 85 species of rodents. We determined the average annual mean, minimum and maximum temperatures across the distribution of each species. Then, using standard least squares regression with body mass as a covariate, we determined the statistical relationships between the physiological variables and the temperatures. We evaluated the effect of phylogeny using a Bayesian Phylogenetic Mixed Model in addition to Bayesian Model Averaging.
dc.description.abstractResults: Ambient temperatures correlate positively with T-LC and T-UC, and negatively with TNZ(b). Species that evolved in cold climates exhibited a greater mass-independent TNZ(b) than species from warmer climates. Species that evolved in cold climates exhibited lower T-LC and T-UC than species from warmer climates. Phylogenetic as well as conventional statistics indicated that there are thermoregulatory constraints across geographic gradients.
dc.fuente.origenWOS
dc.identifier.eissn1937-3791
dc.identifier.issn1522-0613
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101615
dc.identifier.wosidWOS:000349444300004
dc.issue.numero2
dc.language.isoen
dc.pagina.final152
dc.pagina.inicio143
dc.revistaEvolutionary ecology research
dc.rightsacceso restringido
dc.subjectmacrophysiology
dc.subjectenergetics
dc.subjectenvironmental temperature
dc.subjectglobal ecology
dc.subjectclimate change
dc.subjectsmall mammals
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.titleThermal tolerances in rodents: species that evolved in cold climates exhibit a wider thermoneutral zone
dc.typeartículo
dc.volumen16
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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