Coping with salt without salt glands: Osmoregulatory plasticity in three species of coastal songbirds (ovenbirds) of the genus Cinclodes (Passeriformes: Furnariidae)
Author
dc.contributor.author
Sabat Kirkwood, Alejandro Pablo
Author
dc.contributor.author
Maldonado, Karin
Author
dc.contributor.author
Rivera Hutinel, Antonio
Author
dc.contributor.author
Farfan, Gonzalo
Admission date
dc.date.accessioned
2019-01-29T15:34:35Z
Available date
dc.date.available
2019-01-29T15:34:35Z
Publication date
dc.date.issued
2004
Cita de ítem
dc.identifier.citation
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, Volumen 174, Issue 5, 2018, Pages 415-420
Identifier
dc.identifier.issn
01741578
Identifier
dc.identifier.other
10.1007/s00360-004-0428-2
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/161668
Abstract
dc.description.abstract
We investigated the phenotypic plasticity of renal function in three South American coastal passerine Cinclodes (ovenbirds) differing in the proportion of marine prey they consume. Individuals were acclimated to two regimes of salinity for 15 days, and then the maximal urine-concentrating ability (U max), hematological parameters and kidney morphology of each specieswere determined. The proportion of kidney mass occu pied by medullary tissue, the number of medullary cones in the kidneys, plasma osmolality and Umax differed among the three species, supporting the hypothesis of an adaptation for excretion of the high salt load in the strictly marine C. nigrofumosus. Our results indicate that species of Cinclodes are able to modify the proportion of medullary tissue and the Umax. In addition, we found interspecific differences in the magnitude to which these osmoregulatory parameters can be modified. The greater ability to modify the osmoregulatory features in the migrant species C. ousta
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology
Keywords
dc.subject
Acclimation
Keywords
dc.subject
Coastal environments
Keywords
dc.subject
Osmoregulation
Keywords
dc.subject
Passerines
Keywords
dc.subject
Renal function
Título
dc.title
Coping with salt without salt glands: Osmoregulatory plasticity in three species of coastal songbirds (ovenbirds) of the genus Cinclodes (Passeriformes: Furnariidae)