Geographic variation in thermal physiological performance of the intertidal crab petrolisthes violaceus along a latitudinal gradient
| Autor: | Tania Timmermann, Nelson A. Lagos, Leonardo D. Bacigalupe, Tania Opitz, Juan Diego Gaitán-Espitia, Marco A. Lardies |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Abiotic component
Pacific Ocean Geography biology Physiology Ecology Acclimatization Temperature Intertidal zone Geographic variation Cline (biology) Aquatic Science biology.organism_classification Adaptation Physiological Latitude Porcelain crab Insect Science Ectotherm Animals Animal Science and Zoology Anomura Molecular Biology Ecology Evolution Behavior and Systematics Local adaptation |
| Zdroj: | JOURNAL OF EXPERIMENTAL BIOLOGY Artículos CONICYT CONICYT Chile instacron:CONICYT Journal of Experimental Biology |
| Popis: | Environmental temperature has profound implications on the biological performance and biogeographical distribution of ectothermic species. Variation of this abiotic factor across geographic gradients is expected to produces physiological differentiation and local adaptation of natural populations depending on their thermal tolerances and physiological sensitivities. Here, we have studied geographic variation in whole-organism thermal physiology of seven populations of the porcelain crab Petrolisthes violaceus across a latitudinal gradient of 3000 km, characterized by a cline of thermal conditions. Our study found that populations of P. violaceus exhibit a lack of differences in the limits of their thermal performance curves and a negative correlation of their optimal temperatures with latitude. Additionally, our findings showed that high latitude populations of P. violaceus exhibited broader thermal tolerances, which is consistent with the Climatic Variability Hypothesis. Interestingly, under a future scenario of warming oceans, the thermal safety margins of P. violaceus indicate that lower latitude populations can physiologically tolerate the ocean warming scenarios projected by the IPCC for the end of the twenty-first century. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|