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dc.creatorSABAT,PABLO
dc.creatorNESPOLO,ROBERTO F
dc.creatorBOZINOVIC,FRANCISCO
dc.date2004-06-01
dc.date.accessioned2020-02-17T15:32:50Z
dc.date.available2020-02-17T15:32:50Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000200001
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/130425
dc.descriptionBirds living in desert environments have been the preferred models for the study of physiological adaptations to water scarcity. Passerine birds living in marine coastal habitats face similar problems, yet physiological adaptations to water conservation in such species have been poorly documented. We measured total evaporative water loss (TEWL) and rates of oxygen consumption (VO2) in three species of passerine birds dwelling in marine and fresh water habitats. Mass specific total evaporative water loss was significantly lower in the marine species, Cinclodes nigrofumosus, than in species inhabiting areas near freshwater sources. We found a positive relationship between TEWL and VO2. The ratio of TEWL to VO2 (relative evaporative water loss, RTEWL) showed significant variation among Cinclodes species, and was highest for the fresh-water living species, C. oustaleti and C. fuscus. The variation in TEWL found in Cinclodes is likely a consequence of differential exploitation of marine prey with high osmotic loads, which, in turn, may impose the need for water conservation
dc.formattext/html
dc.languageen
dc.publisherSociedad de Biología de Chile
dc.relation10.4067/S0716-078X2004000200001
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista chilena de historia natural v.77 n.2 2004
dc.subjectevaporative water loss
dc.subjectCinclodes
dc.subjectosmoregulation
dc.subjectpasserines
dc.subjectsalt
dc.titleWater economy of three Cinclodes (Furnariidae) species inhabiting marine and freshwater ecosystems


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