Thermoregulation and activity pattern of the high-mountain lizard <i>Phymaturus palluma</i> (Tropiduridae) in Chile

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dc.contributor.authorVidal, Marcela A.
dc.contributor.authorHabit, Evelyn
dc.contributor.authorVictorian, Pedro
dc.contributor.authorGonzalez-Gajardo, Angelica
dc.contributor.authorOrtiz, Juan C.
dc.date.accessioned2025-01-21T00:06:38Z
dc.date.available2025-01-21T00:06:38Z
dc.date.issued2010
dc.description.abstractBehavioral and physiological mechanisms of thermoregulation in ectotherms are conditioned by thermal constraints. These mechanisms may be even more restrictive when environmental conditions are unfavorable for individuals, especially when sexual dimorphism segregates the sexes spatially. In order to understand behavioral and physiological regulation mechanisms, we investigated the thermal biology of Phymaturus palluma (Molina, 1782), a sexually size dimorphic, high-mountain lizard that inhabits extreme climatic conditions. P. palluma showed a bimodal activity pattern, a major peak in the morning (11:00-13:30h) and in the afternoon (15:30-18:00 h). The lizards were more active when substrate temperatures were between 25 and 28 degrees C. The highest abundance was found around 27 degrees C (between 11:00-12:30). Females showed greater activity than males in the early morning. Sub-adults and juveniles did not show differences in their activity pattern. There was a positive relationship between body temperature and air and substrate temperatures, suggesting typically thigmothermal regulation.
dc.fuente.origenWOS
dc.identifier.issn1984-4689
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95597
dc.identifier.wosidWOS:000276051000003
dc.issue.numero1
dc.language.isoen
dc.pagina.final18
dc.pagina.inicio13
dc.revistaZoologia
dc.rightsacceso restringido
dc.subjectAge classes
dc.subjectdaily activity
dc.subjectsexual dimorphism
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleThermoregulation and activity pattern of the high-mountain lizard <i>Phymaturus palluma</i> (Tropiduridae) in Chile
dc.typeartículo
dc.volumen27
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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