Exposure to solar radiation drives organismal vulnerability to climate: Evidence from an intertidal limpet.
Identifieur interne : 003351 ( Ncbi/Checkpoint ); précédent : 003350; suivant : 003352Exposure to solar radiation drives organismal vulnerability to climate: Evidence from an intertidal limpet.
Auteurs : Coraline Chapperon [Australie] ; Nils Volkenborn [France] ; Jacques Clavier [France] ; Sarah Séité [France] ; Rui Seabra [Portugal] ; Fernando P. Lima [Portugal]Source :
- Journal of thermal biology [ 0306-4565 ] ; 2016.
Descripteurs français
- KwdFr :
- MESH :
- effets des radiations : Gastropoda.
- physiologie : Gastropoda.
- Acclimatation, Animaux, Lumière du soleil.
English descriptors
- KwdEn :
- MESH :
- physiology : Gastropoda.
- radiation effects : Gastropoda.
- Acclimatization, Animals, Sunlight.
Abstract
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.
DOI: 10.1016/j.jtherbio.2016.03.002
PubMed: 27033044
Affiliations:
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Campo Alegre, s/n, 4169-007 Porto, Portugal.</nlm:affiliation><country xml:lang="fr">Portugal</country><wicri:regionArea>CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, R. Campo Alegre, s/n, 4169-007 Porto</wicri:regionArea><wicri:noRegion>4169-007 Porto</wicri:noRegion></affiliation></author><author><name sortKey="Lima, Fernando P" sort="Lima, Fernando P" uniqKey="Lima F" first="Fernando P" last="Lima">Fernando P. 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Electronic address: coralinechapperon@gmail.com.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Laboratoire des Sciences de l'Environnement Marin (LEMAR, UMR CNRS 6539), Institut Universitaire Européen de la Mer (IUEM), rue Dumont d'Urville, Plouzané 29280, France; School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide SA 5001</wicri:regionArea><wicri:noRegion>Adelaide SA 5001</wicri:noRegion></affiliation></author><author><name sortKey="Volkenborn, Nils" sort="Volkenborn, Nils" uniqKey="Volkenborn N" first="Nils" last="Volkenborn">Nils Volkenborn</name><affiliation wicri:level="1"><nlm:affiliation>Ifremer, DYNECO Laboratoire d'Ecologie Benthique, Plouzané 29280, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Ifremer, DYNECO Laboratoire d'Ecologie Benthique, Plouzané 29280</wicri:regionArea><wicri:noRegion>29280</wicri:noRegion><wicri:noRegion>29280</wicri:noRegion></affiliation></author><author><name sortKey="Clavier, Jacques" sort="Clavier, Jacques" uniqKey="Clavier J" first="Jacques" last="Clavier">Jacques Clavier</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire des Sciences de l'Environnement Marin (LEMAR, UMR CNRS 6539), Institut Universitaire Européen de la Mer (IUEM), rue Dumont d'Urville, Plouzané 29280, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire des Sciences de l'Environnement Marin (LEMAR, UMR CNRS 6539), Institut Universitaire Européen de la Mer (IUEM), rue Dumont d'Urville, Plouzané 29280</wicri:regionArea><wicri:noRegion>29280</wicri:noRegion><wicri:noRegion>29280</wicri:noRegion></affiliation></author><author><name sortKey="Seite, Sarah" sort="Seite, Sarah" uniqKey="Seite S" first="Sarah" last="Séité">Sarah Séité</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire des Sciences de l'Environnement Marin (LEMAR, UMR CNRS 6539), Institut Universitaire Européen de la Mer (IUEM), rue Dumont d'Urville, Plouzané 29280, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire des Sciences de l'Environnement Marin (LEMAR, UMR CNRS 6539), Institut Universitaire Européen de la Mer (IUEM), rue Dumont d'Urville, Plouzané 29280</wicri:regionArea><wicri:noRegion>29280</wicri:noRegion><wicri:noRegion>29280</wicri:noRegion></affiliation></author><author><name sortKey="Seabra, Rui" sort="Seabra, Rui" uniqKey="Seabra R" first="Rui" last="Seabra">Rui Seabra</name><affiliation wicri:level="1"><nlm:affiliation>CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, R. Campo Alegre, s/n, 4169-007 Porto, Portugal.</nlm:affiliation><country xml:lang="fr">Portugal</country><wicri:regionArea>CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, R. Campo Alegre, s/n, 4169-007 Porto</wicri:regionArea><wicri:noRegion>4169-007 Porto</wicri:noRegion></affiliation></author><author><name sortKey="Lima, Fernando P" sort="Lima, Fernando P" uniqKey="Lima F" first="Fernando P" last="Lima">Fernando P. Lima</name><affiliation wicri:level="1"><nlm:affiliation>CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal.</nlm:affiliation><country xml:lang="fr">Portugal</country><wicri:regionArea>CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão</wicri:regionArea><wicri:noRegion>4485-661 Vairão</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of thermal biology</title><idno type="ISSN">0306-4565</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization</term><term>Animals</term><term>Gastropoda (physiology)</term><term>Gastropoda (radiation effects)</term><term>Sunlight</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acclimatation</term><term>Animaux</term><term>Gastropoda (effets des radiations)</term><term>Gastropoda (physiologie)</term><term>Lumière du soleil</term></keywords><keywords scheme="MESH" qualifier="effets des radiations" xml:lang="fr"><term>Gastropoda</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Gastropoda</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Gastropoda</term></keywords><keywords scheme="MESH" qualifier="radiation effects" xml:lang="en"><term>Gastropoda</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acclimatization</term><term>Animals</term><term>Sunlight</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acclimatation</term><term>Animaux</term><term>Lumière du soleil</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li><li>Portugal</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Chapperon, Coraline" sort="Chapperon, Coraline" uniqKey="Chapperon C" first="Coraline" last="Chapperon">Coraline Chapperon</name></noRegion></country><country name="France"><noRegion><name sortKey="Volkenborn, Nils" sort="Volkenborn, Nils" uniqKey="Volkenborn N" first="Nils" last="Volkenborn">Nils Volkenborn</name></noRegion><name sortKey="Clavier, Jacques" sort="Clavier, Jacques" uniqKey="Clavier J" first="Jacques" last="Clavier">Jacques Clavier</name><name sortKey="Seite, Sarah" sort="Seite, Sarah" uniqKey="Seite S" first="Sarah" last="Séité">Sarah Séité</name></country><country name="Portugal"><noRegion><name sortKey="Seabra, Rui" sort="Seabra, Rui" uniqKey="Seabra R" first="Rui" last="Seabra">Rui Seabra</name></noRegion><name sortKey="Lima, Fernando P" sort="Lima, Fernando P" uniqKey="Lima F" first="Fernando P" last="Lima">Fernando P. 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