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Artículo

Coping with Daily Thermal Variability: Behavioural Performance of an Ectotherm Model in a Warming World

Rojas, José M.; Castillo, Simón B.; Folguera, GuillermoIcon ; Abades, Sebastián; Bozinovic, Francisco
Fecha de publicación: 07/2014
Editorial: Public Library of Science
Revista: Plos One
ISSN: 1932-6203
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Global climate change poses one of the greatest threats to species persistence. Most analyses of the potential biological impacts have focused on changes in mean temperature, but changes in thermal variance will also impact organisms and populations. We assessed the effects of acclimation to daily variance of temperature on dispersal and exploratory behavior in the terrestrial isopod Porcellio laevis in an open field. Acclimation treatments were 24±0, 24±4 and 24±8°C. Because the performance of ectotherms relates nonlinearly to temperature, we predicted that animals acclimated to a higher daily thermal variation should minimize the time exposed in the centre of open field, – i.e. increase the linearity of displacements. Consistent with our prediction, isopods acclimated to a thermally variable environment reduce their exploratory behaviour, hypothetically to minimize their exposure to adverse environmental conditions. This scenario as well as the long latency of animals after releases acclimated to variable environments is consistent with this idea. We suggested that to develop more realistic predictions about the biological impacts of climate change, one must consider the interactions between the mean and variance of environmental temperature on animals' performance.
Palabras clave: Global Climate Change , Variability
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)
Identificadores
URI: http://hdl.handle.net/11336/34611
URL: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0106897
DOI: http://dx.doi.org/10.1371/journal.pone.0106897
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Rojas, José M.; Castillo, Simón B.; Folguera, Guillermo; Abades, Sebastián; Bozinovic, Francisco; Coping with Daily Thermal Variability: Behavioural Performance of an Ectotherm Model in a Warming World; Public Library of Science; Plos One; 9; 9; 7-2014; e106897
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