Seasonal Flexibility of Organ Mass and Intestinal Function for the Andean Lizard <i>Liolaemus nigroviridis</i>

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dc.contributor.authorNaya, Daniel E.
dc.contributor.authorVeloso, Claudio
dc.contributor.authorSabat, Pablo
dc.contributor.authorBozinovic, Francisco
dc.date.accessioned2025-01-21T00:09:20Z
dc.date.available2025-01-21T00:09:20Z
dc.date.issued2009
dc.description.abstractOne of the most fundamental questions in organismal ecology is how animals work in a continuously changing environment. In order to contribute to the current understanding of this question, this study evaluated seasonal changes in digestive enzymes activities, organs size, and energy reserves in Liolaemus nigroviridis, a medium-size lizard that inhabit extreme environments in the Andes range. We found that digestive enzymes (trehalase, maltase, and aminopeptidase-N) hydrolytic activities, dry masses of digestive organs and liver, and energy reserve (dry mass of fat bodies and tail energy density) were greater during summer than during winter months. By contrast, dry mass of the kidneys, lungs, heart, and gonads were greater during winter (though significance was reach only for the last two organs). In summary, obtained results reinforce the idea that hibernation is connected with phenotypic adjustments at different organizational levels, which in turn, potentially affects rates of energy acquisition and expenditure, organisms' fitness, and, ultimately, ecological and evolutionary success of species living in highly seasonal environments. We suggest that, owing to the pressing need to explain and predict the impact of climatic change on the biota, more studies destined to determine the levels and limits of physiological flexibility are necessary. J. Exp. Zool. 311A:270-277, 2009. (C) 2009 Wiley-Liss, Inc.
dc.fuente.origenWOS
dc.identifier.doi10.1002/jez.525
dc.identifier.eissn2471-5646
dc.identifier.issn2471-5638
dc.identifier.urihttps://doi.org/10.1002/jez.525
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95704
dc.identifier.wosidWOS:000266551700004
dc.issue.numero4
dc.language.isoen
dc.pagina.final277
dc.pagina.inicio270
dc.revistaJournal of experimental zoology part a-ecological and integrative physiology
dc.rightsacceso restringido
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.titleSeasonal Flexibility of Organ Mass and Intestinal Function for the Andean Lizard <i>Liolaemus nigroviridis</i>
dc.typeartículo
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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