ENSO-associated response of field urine osmolality in the insectivorous marsupial <i>Thylamys elegans</i>

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dc.contributor.authorTirado, C.
dc.contributor.authorCortes, A.
dc.contributor.authorJaksic, F. M.
dc.contributor.authorBozinovic, F.
dc.date.accessioned2025-01-21T01:04:58Z
dc.date.available2025-01-21T01:04:58Z
dc.date.issued2008
dc.description.abstractFrom 1991 to 1994, we assessed physiological responses in field urine osmolality (Uosm) of an insectivorous marsupial (Thylamys elegans) of semiarid Chile faced with a complete cycle of El Nino Southern Oscillation (ENSO). El Nino phase of ENSO determined the initial 2 wet years at the Study site. while La Nina phase determined the 2 subsequent dry years. The marsupial showed marked temporal fluctuations in field Uosm values, with both seasonal and between-year patterns of physiological variability. Indeed, Uosm values during wet years were: 2.719 +/- 405mOsm/kg in summer versus 2.246+209mOsm/kg in winter. During dry years in summer, Uosm values were: 3.340 +/- 384 mOsm/kg versus 2.481+293mOsm/kg during winter. There were significant effects of dry versus wet years and between dry and wet seasons on Uosm values, as well as a statistical interaction year x season. We discuss how the integration of flexible physiological mechanisms enable an insectivorous marsupial to cope with seasonal and yearly water variability in a semidesert, and also the importance of using ENSO climate effects as a proxy for the study of future climate change in natural Communities and its subsequent impact on field physiological performance of desert mammals. (c) 2008 Elsevier Ltd. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jaridenv.2008.06.012
dc.identifier.eissn1095-922X
dc.identifier.issn0140-1963
dc.identifier.urihttps://doi.org/10.1016/j.jaridenv.2008.06.012
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95760
dc.identifier.wosidWOS:000259721500004
dc.issue.numero11
dc.language.isoen
dc.pagina.final2016
dc.pagina.inicio2011
dc.revistaJournal of arid environments
dc.rightsacceso restringido
dc.subjectclimate change
dc.subjectEl Nino
dc.subjectfield physiology
dc.subjectla nina
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.titleENSO-associated response of field urine osmolality in the insectivorous marsupial <i>Thylamys elegans</i>
dc.typeartículo
dc.volumen72
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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