Testing the metabolic cold adaptation hypothesis: an intraspecific latitudinal comparison in the common woodlouse

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dc.contributor.authorLardies, MA
dc.contributor.authorBacigalupe, LD
dc.contributor.authorBozinovic, F
dc.date.accessioned2025-01-21T01:08:05Z
dc.date.available2025-01-21T01:08:05Z
dc.date.issued2004
dc.description.abstractThe metabolic cold adaptation (MCA) hypothesis predicts an increase in the metabolic rate of ectotherms from cold environments compared with their more temperate counterparts. This adaptive hypothesis is one of the most controversial in physiological ecology, for which the evidence comes principally from the meta-analysis of data sets of arthropods. Important for the study of metabolic cold adaptation are comparisons at a geographic level, especially on a latitudinal scale, because mean annual temperature decreases towards high latitudes. Furthermore, few studies have conducted intraspecific comparisons of metabolic rates along a latitudinal gradient. We tested the MCA hypothesis in the common woodlouse, Porcellio laevis, using different populations along a distributional range with a wide range of mean ambient temperatures (5degrees, 12degrees, 18degrees and 25degreesC) in Chile. Our results demonstrated that metabolic rate increased towards low latitudes - that is, woodlice from the warmer (i.e. northern) part of the distribution range had markedly higher metabolic rates than those from the cooler (i.e. southern) region, for almost all experimental temperatures. Thus, our results provide direct evidence of intraspecific latitudinal differences in metabolism, rejecting the MCA hypothesis, which is more difficult to resolve with interspecific level comparisons.
dc.fuente.origenWOS
dc.identifier.eissn1937-3791
dc.identifier.issn1522-0613
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96423
dc.identifier.wosidWOS:000221990800006
dc.issue.numero4
dc.language.isoen
dc.pagina.final578
dc.pagina.inicio567
dc.revistaEvolutionary ecology research
dc.rightsacceso restringido
dc.subjectlatitudinal cline
dc.subjectlocal adaptation
dc.subjectmetabolism
dc.subjectPorcellio laevis
dc.subjecttemperature
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleTesting the metabolic cold adaptation hypothesis: an intraspecific latitudinal comparison in the common woodlouse
dc.typeartículo
dc.volumen6
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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