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DOI | 10.1016/J.JTHERBIO.2018.09.016 | ||||
Año | 2018 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
In intertidal marine crustaceans, phenotypic variation in physiological and life-history traits is pervasive along latitudinal dines. However, organisms have complex phenotypes, and their traits do not vary independently but rather interact differentially between them, effect that is caused by genetic and/or environmental forces. We evaluated the geographic variation in phenotypic integration of three marine crab species that inhabit different vertical thermal microhabitats of the intertidal zone. We studied seven populations of each species along a latitudinal gradient that spans more than 3000 km of the Chilean coast. Specifically we measured nine physiological traits that are highly related to thermal physiology. Of the nine traits, we selected four that contributed significantly to the observed geographical variation among populations; this variation was then evaluated using mixed linear models and an integrative approach employing machine learning. The results indicate that patterns of physiological variation depend on species vertical microhabitat, which may be subject to chronic or acute environmental variation. The species that inhabit the high- intertidal sites (i.e., exposed to chronic variation) better tolerated thermal stress compared with populations that inhabit the lower intertidal. While those in the low-intertidal only face conditions of acute thermal variation, using to a greater extent the plasticity to face these events. Our main results reflect that (1) species that inhabit the high-intertidal maintain a greater integration between their physiological traits and present lower plasticity than those that inhabit the low-intertidal. (2) Inverse relationship that exists between phenotypic plasticity and phenotypic integration of the physiological traits identified, which could help optimize energy resources. In general, the study of multiple physiological traits provides a more accurate picture of how the thermal traits of organisms vary along temperature gradients especially when exposed to conditions close to tolerance limits.
Ord. | Autor | Género | Institución - País |
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1 | Osores, Sebastian | Hombre |
Universidad Adolfo Ibáñez - Chile
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2 | Ruz, Gonzalo A. | Hombre |
Universidad Adolfo Ibáñez - Chile
UC - Chile Center of Applied Ecology and Sustainability (CAPES) - Chile |
3 | Opitz, T. | Mujer |
Universidad Adolfo Ibáñez - Chile
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4 | LARDIES-CARRASCO, MARCO ANTONIO | Hombre |
Universidad Adolfo Ibáñez - Chile
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Fuente |
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CONICYT FONDECYT |
Comisión Nacional de Investigación Científica y Tecnológica |
Comisión Nacional de Investigación CientÃfica y Tecnológica |
Consejo Nacional de Innovacion, Ciencia y Tecnologia |
PIA CONICYT |
CONICYT FONDECYT grant |
Becas Conicyt |
MINECON Project |
Agradecimiento |
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The study received financial support from CONICYT FONDECYT 1140092 grant to MAL. The Millennium Nucleus Center for the Study of Multiple-drivers on Marine Socio-Ecological Systems (MUSELS) by MINECON Project NC120086 also gave support to MAL and SJO during final stages of the project. MAL acknowledge the support of PIA CONICYT ACT-172037. SJO acknowledges BECAS CONICYT No. 21150739 for financial support. All experiments were conducted according to common Chilean law. |
The study received financial support from CONICYT FONDECYT 1140092 grant to MAL. The Millennium Nucleus Center for the Study of Multiple-drivers on Marine Socio-Ecological Systems (MUSELS) by MINECON Project NC120086 also gave support to MAL and SJO during final stages of the project. MAL acknowledge the support of PIA CONICYT ACT-172037. SJO acknowledges BECAS CONICYT No. 21150739 for financial support. All experiments were conducted according to common Chilean law. |