Publicación:
THERMOREGULATION AND ACTIVITY PATTERN OF THE HIGH-MOUNTAIN LIZARD PHYMATURUS PALLUMA (TROPIDURIDAE) IN CHILE

Vista sencilla de ítem
dc.creatorMARCELA ALEJANDRA VIDAL MALDONADO
dc.creatorMARÍA ANGÉLICA GONZÁLEZ STAGER
dc.date2010
dc.date.accessioned2025-01-10T14:52:27Z
dc.date.available2025-01-10T14:52:27Z
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 28º C. THE HIGHEST ABUNDANCE WAS FOUND AROUND 27º 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.formatapplication/pdf
dc.identifier.doi10.1590/S1984-46702010000100003
dc.identifier.issn1984-4670
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/9347
dc.languagespa
dc.publisherZoologia
dc.relation.uri10.1590/S1984-46702010000100003
dc.rightsPUBLICADA
dc.subjectSEXUAL DIMORPHISM
dc.subjectDAILY ACTIVITY
dc.subjectAGE CLASSES
dc.titleTHERMOREGULATION AND ACTIVITY PATTERN OF THE HIGH-MOUNTAIN LIZARD PHYMATURUS PALLUMA (TROPIDURIDAE) IN CHILE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE NUTRICION Y SALUD PUBLICA
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
Archivos
Colecciones
Artículos científicos