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Size and position (sometimes) matter: small-scale patterns of heat stress associated with two co-occurring mussels with different thermoregulatory behaviour

2016-09Journal article Restricted
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dc.contributor.authorLathlean, Justin A.
dc.contributor.authorSeuront, Laurent
dc.contributor.authorMcQuaid, Christopher D.
dc.contributor.authorNg, Terence P. T.
dc.contributor.authorZardi, Gerardo I.
dc.contributor.authorNicastro, Katy R
dc.date.accessioned2017-04-07T15:56:08Z
dc.date.available2017-04-07T15:56:08Z
dc.date.issued2016-09
dc.description.abstractHeat-related mass mortalities and local extinctions are expected to rise as the frequency, duration, and intensity of extreme heat events increase due to climate change, particularly in the case of sessile or sedentary species that cannot relocate. Little is known, however, of how biotic factors, such as the size and non-motile behaviour of individuals, contribute to small-scale variation in susceptibility to heat-related mortality during such events. We used infrared thermography to investigate how manipulated mussel bed size and the size structure of individuals within beds influence small-scale variability in the body temperatures of two intertidal mussel species with different thermoregulatory behaviours (gaping vs. non-gaping) during simulated extreme heat conditions. At times, body temperatures of small individuals reached higher temperatures than large individuals, irrespective of mussel bed size, though this was more apparent for the non-gaping species. Average body temperatures and heating rates of individuals within large mussel beds were generally greater than for individuals within small mussel beds, irrespective of species or individual size. This pattern seems to reflect an effect of the greater circumference/ area ratio for small mussel beds as individuals on the windward side of all beds displayed convective cooling and body temperatures 3-5 degrees C cooler than those on the leeward side. Such high levels of inter-individual variability in body temperatures at small spatial scales suggest the need for a greater appreciation and inclusion of biotic factors in assessing susceptibility of populations to climate change.
dc.identifier.doi10.1007/s00227-016-2966-z
dc.identifier.issn0025-3162
dc.identifier.urihttp://hdl.handle.net/10400.1/9325
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Verlag
dc.relationWho is taking the heat? Accounting for multiple levels of biodiversity under contemporary climatic change
dc.relation.isbasedonWOS:000382753200009
dc.titleSize and position (sometimes) matter: small-scale patterns of heat stress associated with two co-occurring mussels with different thermoregulatory behaviour
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleWho is taking the heat? Accounting for multiple levels of biodiversity under contemporary climatic change
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01413%2F2014%2FCP1217%2FCT0004/PT
oaire.citation.endPage189
oaire.citation.issue9
oaire.citation.startPage189
oaire.citation.titleMarine Biology
oaire.citation.volume163
oaire.fundingStreamInvestigador FCT
person.familyNameNicastro
person.givenNameKaty
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.orcid0000-0002-7071-141X
person.identifier.ridD-2259-2012
person.identifier.scopus-author-id12646675100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication6268844a-b0a2-4aa5-9616-c3afaba0e2ca
relation.isAuthorOfPublication.latestForDiscovery6268844a-b0a2-4aa5-9616-c3afaba0e2ca
relation.isProjectOfPublicationce75f4c5-0835-4fd6-86cc-d9f0012eedff
relation.isProjectOfPublication.latestForDiscoveryce75f4c5-0835-4fd6-86cc-d9f0012eedff

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