Diet and habitat aridity affect osmoregulatory physiology: An intraspecific field study along environmental gradients in the Rufous-collared sparrow

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dc.contributor.authorSabat, Pablo
dc.contributor.authorGonzalez-Vejares, Sandra
dc.contributor.authorMaldonado, Karin
dc.date.accessioned2025-01-21T00:09:34Z
dc.date.available2025-01-21T00:09:34Z
dc.date.issued2009
dc.description.abstractThe urine field osmolality in Zonotrichia capensis along a latitudinal gradient in rainfall and temperature in Chile was examined. We also investigated latitudinal variation in the renal traits that mediate how these birds cope with dehydration. We used the delta N-15 of this species' tissue to investigate whether the reliance on animals and seeds varied among birds and if it had any effect on excretion and renal traits. We found a significant latitudinal variation in urine osmolality, a variable that was correlated with habitat aridity. We also found that the kidney size and proportion of kidney devoted to medullary tissue differed between birds from and and mesic localities, but not in a lineal fashion with aridity. The increment in the position in the food web, as measured by delta N-15, led to an increment in urine osmolality, without changes in kidney features. Our data suggested that differences in dietary habits in the field could be not extended enough to cause changes in the kidney structure in Rufous-collared sparrows. (C) 2008 Elsevier Inc. All rights reserved.
dc.description.funderFondecyt
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cbpa.2008.11.003
dc.identifier.eissn1531-4332
dc.identifier.issn1095-6433
dc.identifier.urihttps://doi.org/10.1016/j.cbpa.2008.11.003
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95713
dc.identifier.wosidWOS:000263779800006
dc.issue.numero3
dc.language.isoen
dc.pagina.final326
dc.pagina.inicio322
dc.revistaComparative biochemistry and physiology a-molecular & integrative physiology
dc.rightsacceso restringido
dc.subjectAridity
dc.subjectKidney
dc.subjectOsmoregulation
dc.subjectUrine
dc.subjectPasserines
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleDiet and habitat aridity affect osmoregulatory physiology: An intraspecific field study along environmental gradients in the Rufous-collared sparrow
dc.typeartículo
dc.volumen152
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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