Water and energy economy of an omnivorous bird

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dc.contributor.authorSabat, Pablo
dc.contributor.authorCavieres, Grisel
dc.contributor.authorVeloso, Claudio
dc.contributor.authorCanals, Mauricio
dc.date.accessioned2025-01-21T01:06:01Z
dc.date.available2025-01-21T01:06:01Z
dc.date.issued2006
dc.description.abstractWe investigated the intraspecific variation in basal metabolic rate (BMR) and total evaporative water loss (TEWL) in the omnivorous passerine Zonotrichia capensis from two populations inhabiting regions with different precipitation regimes and aridity indices. Values of TEWL in birds from the semi-arid region were significantly lower than those found in sparrows from the mesic region. TEWL in birds from the semi-arid site was 74% of the expectation based on body mass for passerines from mesic areas and similar to the allometric expectation for passerines from and environments. In sparrows from the mesic area, TEWL was higher than predicted by their body mass for passerines from and environments (133%), but very close (97%) to the expectation for passerines from mesic areas. BMR values were 25% lower in sparrows from the semi-arid region. The lower TEWL and BMR of birds from the semi-arid region may be a physiological adjustment that allows them to cope with fewer resources and/or water. We propose that the lower endogenous heat production in birds from the semi-arid environment may decrease their water requirements. (c) 2006 Elsevier Inc. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cbpa.2006.04.016
dc.identifier.eissn1531-4332
dc.identifier.issn1095-6433
dc.identifier.urihttps://doi.org/10.1016/j.cbpa.2006.04.016
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96072
dc.identifier.wosidWOS:000239188900015
dc.issue.numero4
dc.language.isoen
dc.pagina.final490
dc.pagina.inicio485
dc.revistaComparative biochemistry and physiology a-molecular & integrative physiology
dc.rightsacceso restringido
dc.subjectBMR
dc.subjectevaporative water loss
dc.subjectheat
dc.subjectpopulation differences
dc.subjectsparrows
dc.subjectturbinates
dc.subjectxeric environment
dc.subjectZonotrichia capensis
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.titleWater and energy economy of an omnivorous bird
dc.typeartículo
dc.volumen144
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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