Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/53437
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dc.contributor.authorEllis, D.en
dc.contributor.authorFirth, B.en
dc.contributor.authorBelan, I.en
dc.date.issued2008en
dc.identifier.citationJournal of Comparative Physiology A-Sensory Neural and Behavioral Physiology, 2008; 194(8):701-712en
dc.identifier.issn0340-7594en
dc.identifier.issn1432-1351en
dc.identifier.urihttp://hdl.handle.net/2440/53437-
dc.descriptionThe original publication can be found at www.springerlink.comen
dc.description.abstractFew studies in non-mammalian vertebrates have examined how various effectors of the circadian system interact. To determine if the daily locomotor and behavioural thermoregulatory rhythms of Tiliqua rugosa are both controlled by the circadian system in different seasons, lizards were tested in laboratory thermal gradients in four seasons and in constant darkness. Circadian rhythmicity for both rhythms was present in each season, being most pronounced in spring and summer and least evident in autumn. Most lizards displayed a unimodal locomotor activity pattern across all seasons. However, some individuals presented a bimodal locomotor activity pattern in spring and summer. Seasonal variations in the phase relationships of both rhythms to the light:dark (LD) cycle were demonstrated. No seasonal differences in the free-running period lengths of either rhythm were detected, raising the possibility that a single circadian pacemaker drives both rhythms in this species. Our present results demonstrate that both rhythms are similarly controlled by the circadian system in each season. Although seasonal variations in the thermal preferences of reptiles both in the field and laboratory have previously been well documented, this study is the first to demonstrate circadian rhythms of temperature selection in a reptile species in each season.en
dc.description.statementofresponsibilityDavid J. Ellis, Bruce T. Firth and Ingrid Belanen
dc.language.isoenen
dc.publisherSpringer-Verlagen
dc.subjectReptiles; Behavioural thermoregulation; Locomotor activity; Circadian rhythms; Seasonalityen
dc.titleInterseasonal variation in the circadian rhythms of locomotor activity and temperature selection in sleepy lizards, Tiliqua rugosaen
dc.typeJournal articleen
dc.identifier.rmid0020082333en
dc.identifier.doi10.1007/s00359-008-0341-3en
dc.identifier.pubid42222-
pubs.library.collectionAnatomical Sciences publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Anatomical Sciences publications

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