Exposure to solar radiation drives organismal vulnerability to climate: Evidence from an intertidal limpet
| Autor: | Fernando P. Lima, Rui Seabra, Jacques Clavier, Nils Volkenborn, Sarah Séité, Coraline Chapperon |
|---|---|
| Přispěvatelé: | Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Flinders University [Adelaide, Australia], Dynamiques de l'Environnement Côtier (DYNECO), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Universidade do Porto, ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Physiology Acclimatization Gastropoda Climate change Intertidal zone Intertidal Biology 010603 evolutionary biology 01 natural sciences Biochemistry Heat stress Rocky shore Animals Patella vulgata 14. Life underwater Sunlight Thermal tolerance Ecology 010604 marine biology & hydrobiology Limpet ACL biology.organism_classification 13. Climate action Ectotherm Microhabitat [SDE.BE]Environmental Sciences/Biodiversity and Ecology General Agricultural and Biological Sciences Developmental Biology |
| Zdroj: | Journal of Thermal Biology Journal of Thermal Biology, Elsevier, 2016, 57, pp.92-100. ⟨10.1016/j.jtherbio.2016.03.002⟩ Journal Of Thermal Biology (0306-4565) (Pergamon-elsevier Science Ltd), 2016-04, Vol. 57, P. 92-100 |
| ISSN: | 0306-4565 |
| DOI: | 10.1016/j.jtherbio.2016.03.002⟩ |
| Popis: | International audience; Understanding the physiological abilities of organisms to cope with heat stress is critical for predictions of species’ distributions in response to climate change. We investigated physiological responses (respiration and heart beat rate) of the ectotherm limpet Patella vulgata to heat stress events during emersion and the role of seasonal and microclimatic acclimatization for individual thermal tolerance limits. Individuals were collected from 5 microhabitats characterized by different exposure to solar radiation in the high intertidal zone of a semi-exposed rocky shore in winter and summer of 2014. Upper thermal tolerance limits (heat coma temperatures – HCTs, and heart rate Arrhenius break temperatures - ABTs) were determined for individuals from each microhabitat in both seasons under laboratory conditions. While we found a clear seasonal acclimatization, i.e., higher HCTs and ABTs in summer than in winter, we did not find evidence for microhabitat-specific responses that would suggest microclimatic acclimatization. However, operative limpet temperatures derived from in-situ temperature measurements suggest that individuals from sun exposed microhabitats have a much narrower thermal safety margins than those from less exposed surfaces or within crevices. Microhabitat specific thermal safety margins caused by high thermal heterogeneity at small spatial scales and the lack of short term acclimatization will likely shape small scale distribution patterns of intertidal species in response to the predicted increase in the frequency and intensity of heat waves. |
| Databáze: | OpenAIRE |
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