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dc.contributor.authorFolguera, Guillermo-
dc.contributor.authorCaers, Jelle-
dc.contributor.authorPiulachs, Maria-Dolors-
dc.contributor.authorBellés, Xavier-
dc.date.accessioned2011-12-20T10:36:06Z-
dc.date.available2011-12-20T10:36:06Z-
dc.date.issued2011-07-
dc.identifier.citationComparative Biochemistry and Physiology - A - Molecular and Integrative Physiology 159(3): 242-246 (2011)es_ES
dc.identifier.issn1095-6433-
dc.identifier.urihttp://hdl.handle.net/10261/43505-
dc.description5 páginas, 3 figuras, 2 tablas.-- et al.es_ES
dc.description.abstractGlobal climate change is one of the greatest threats to biodiversity; one of the most important effects is the increase in the mean earth surface temperature. However, another but poorly studied main characteristic of global change appears to be an increase in temperature variability. Most of the current analyses of global change have focused on mean values, paying less attention to the role of the fluctuations of environmental variables. We experimentally tested the effects of environmental temperature variability on characteristics associated to the fitness (body mass balance, growth rate, and survival), metabolic rate (VCO2) and molecular traits (heat shock protein expression, Hsp70), in an ectotherm, the terrestrial woodlouse Porcellio laevis. Our general hypotheses are that higher values of thermal amplitude may directly affect life-history traits, increasing metabolic cost and stress responses. At first, results supported our hypotheses showing a diversity of responses among characters to the experimental thermal treatments. We emphasize that knowledge about the cellular and physiological mechanisms by which animals cope with environmental changes is essential to understand the impact of mean climatic change and variability. Also, we consider that the studies that only incorporate only mean temperatures to predict the life-history, ecological and evolutionary impact of global temperature changes present important problems to predict the diversity of responses of the organism. This is because the analysis ignores the complexity and details of the molecular and physiological processes by which animals cope with environmental variability, as well as the life-history and demographic consequences of such variability.es_ES
dc.description.sponsorshipFunded by FONDAP 1501–0001 (program 1) to FB, the Ministry of Science and Innovation, Spain (projects BFU2008-00484 to MDP and CGL2008-03517/BOS to XB), and by LINC-Global to MD P, XB and FB. GF acknowledge a post-doc fellowship from CASEB.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsclosedAccesses_ES
dc.subjectEctothermes_ES
dc.subjectGlobal climate changees_ES
dc.subjectHeat shock proteinses_ES
dc.subjectLife-historyes_ES
dc.subjectMetabolic ratees_ES
dc.subjectTemperature variabilityes_ES
dc.titleAn experimental test of the role of environmental temperature variability on ectotherm molecular, physiological and life-history traits: Implications for global warminges_ES
dc.typeArtículoes_ES
dc.identifier.doi10.1016/j.cbpa.2011.03.002-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.cbpa.2011.03.002es_ES
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