Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles
Identifieur interne : 001194 ( Istex/Corpus ); précédent : 001193; suivant : 001195Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles
Auteurs : David Sánchez-Fernández ; Piero Calosi ; Andrew Atfield ; Paula Arribas ; Josefa Velasco ; John I. Spicer ; Andrés Millán ; David T. BiltonSource :
- Physiological Entomology [ 0307-6962 ] ; 2010-09.
English descriptors
Abstract
Inland saline waters are globally threatened habitats that harbour unique assemblages of specialist invertebrates. In many Mediterranean regions, irrigation associated with intensive agriculture is lowering the salinity of these habitats, resulting in the loss of their specialist biota, although the mechanisms by which reductions in salinity lead to species loss are poorly understood. In the present study, the effects of reduced salinity on the temperature tolerance and thermal acclimatory abilities of two related species of hypersaline water beetles, Nebrioporus baeticus (Schaum) and Nebrioporus ceresyi (Aubé), are explored. Both upper (UTL) and lower thermal limits (LTL) are assessed, and both salinity and temperature are found to influence the thermal biology of Nebrioporus. Mean UTLs are greater in individuals of both species acclimated at high salinities, with salinity appearing to be more important than acclimation temperature in determining UTL. In both taxa, the lowest mean LTLs are recorded in individuals acclimated at the highest salinities and lowest temperatures; temperature‐dependent acclimation is only reported after exposure to relatively high salinities. The data show that salinity influences the thermal tolerance and acclimatory ability of these hypersaline beetles, and that lowered salinity compromises the ability of adult Nebrioporus to cope with both heat and cold. Such an effect may partly explain why specialist species are lost from hypersaline habitats subject to salinity reductions, and suggests that ongoing reduction in salinity may compromise the ability of such specialist taxa to cope with rapid climate change.
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DOI: 10.1111/j.1365-3032.2010.00734.x
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In both taxa, the lowest mean LTLs are recorded in individuals acclimated at the highest salinities and lowest temperatures; temperature‐dependent acclimation is only reported after exposure to relatively high salinities. The data show that salinity influences the thermal tolerance and acclimatory ability of these hypersaline beetles, and that lowered salinity compromises the ability of adult Nebrioporus to cope with both heat and cold. 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In many Mediterranean regions, irrigation associated with intensive agriculture is lowering the salinity of these habitats, resulting in the loss of their specialist biota, although the mechanisms by which reductions in salinity lead to species loss are poorly understood. In the present study, the effects of reduced salinity on the temperature tolerance and thermal acclimatory abilities of two related species of hypersaline water beetles, Nebrioporus baeticus (Schaum) and Nebrioporus ceresyi (Aubé), are explored. Both upper (UTL) and lower thermal limits (LTL) are assessed, and both salinity and temperature are found to influence the thermal biology of Nebrioporus. Mean UTLs are greater in individuals of both species acclimated at high salinities, with salinity appearing to be more important than acclimation temperature in determining UTL. In both taxa, the lowest mean LTLs are recorded in individuals acclimated at the highest salinities and lowest temperatures; temperature‐dependent acclimation is only reported after exposure to relatively high salinities. The data show that salinity influences the thermal tolerance and acclimatory ability of these hypersaline beetles, and that lowered salinity compromises the ability of adult Nebrioporus to cope with both heat and cold. Such an effect may partly explain why specialist species are lost from hypersaline habitats subject to salinity reductions, and suggests that ongoing reduction in salinity may compromise the ability of such specialist taxa to cope with rapid climate change.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>Climate change</term></item><item><term>inland saline waters</term></item><item><term>salinity tolerance</term></item><item><term>thermal physiology</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2010-09">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/1704620209528A89A9A12FDA684AE2F09F50FB7C/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1365-3032</doi><issn type="print">0307-6962</issn><issn type="electronic">1365-3032</issn><idGroup><id type="product" value="PHEN"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="PHYSIOLOGICAL ENTOMOLOGY">Physiological Entomology</title></titleGroup></publicationMeta><publicationMeta level="part" position="09103"><doi origin="wiley">10.1111/pen.2010.35.issue-3</doi><numberingGroup><numbering type="journalVolume" number="35">35</numbering><numbering type="journalIssue" number="3">3</numbering></numberingGroup><coverDate startDate="2010-09">September 2010</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="8" status="forIssue"><doi origin="wiley">10.1111/j.1365-3032.2010.00734.x</doi><idGroup><id type="unit" value="PHEN734"></id></idGroup><countGroup><count type="pageTotal" number="9"></count></countGroup><titleGroup><title type="tocHeading1">Original Articles</title></titleGroup><copyright>© 2010 The Authors. Journal compilation © 2010 The Royal Entomological Society</copyright><eventGroup><event type="firstOnline" date="2010-05-21"></event><event type="publishedOnlineAcceptedOrEarlyUnpaginated" date="2010-05-21"></event><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.3.25 mode:FullText source:HeaderRef result:HeaderRef" date="2010-11-05"></event><event type="publishedOnlineFinalForm" date="2010-08-12"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:4.0.1" date="2014-03-20"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-11-03"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="265">265</numbering><numbering type="pageLast" number="273">273</numbering></numberingGroup><correspondenceTo>Dr David Sánchez Fernández, Museo Nacional de Ciencias Naturales, Calle José Gutiérrez Abascal, 2, Madrid, 28006, Spain. Tel.: +34 91 411 13 28; e‐mail: <email>davidsan@um.es</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:PHEN.PHEN734.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Accepted 15 March 2010First published online 21 May 2010</unparsedEditorialHistory><countGroup><count type="figureTotal" number="3"></count><count type="tableTotal" number="1"></count><count type="formulaTotal" number="0"></count><count type="referenceTotal" number="71"></count></countGroup><titleGroup><title type="main">Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles</title><title type="shortAuthors"><i>D. Sánchez‐Fernández</i> et al.</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1 #a2" corresponding="yes"><personName><givenNames>DAVID</givenNames><familyName>SÁNCHEZ‐FERNÁNDEZ</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a3"><personName><givenNames>PIERO</givenNames><familyName>CALOSI</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a3"><personName><givenNames>ANDREW</givenNames><familyName>ATFIELD</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a1"><personName><givenNames>PAULA</givenNames><familyName>ARRIBAS</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a1"><personName><givenNames>JOSEFA</givenNames><familyName>VELASCO</familyName></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#a3"><personName><givenNames>JOHN I.</givenNames><familyName>SPICER</familyName></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#a1"><personName><givenNames>ANDRÉS</givenNames><familyName>MILLÁN</familyName></personName></creator><creator creatorRole="author" xml:id="cr8" affiliationRef="#a3"><personName><givenNames>DAVID T.</givenNames><familyName>BILTON</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="ES"><unparsedAffiliation>Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="ES"><unparsedAffiliation>Museo Nacional de Ciencias Naturales, Madrid, Spain</unparsedAffiliation></affiliation><affiliation xml:id="a3"><unparsedAffiliation>Faculty of Science & Technology, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, U.K.</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">Climate change</keyword><keyword xml:id="k2">inland saline waters</keyword><keyword xml:id="k3">salinity tolerance</keyword><keyword xml:id="k4">thermal physiology</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><p>Inland saline waters are globally threatened habitats that harbour unique assemblages of specialist invertebrates. In many Mediterranean regions, irrigation associated with intensive agriculture is lowering the salinity of these habitats, resulting in the loss of their specialist biota, although the mechanisms by which reductions in salinity lead to species loss are poorly understood. In the present study, the effects of reduced salinity on the temperature tolerance and thermal acclimatory abilities of two related species of hypersaline water beetles, <i>Nebrioporus baeticus</i> (Schaum) and <i>Nebrioporus ceresyi</i> (Aubé), are explored. Both upper (UTL) and lower thermal limits (LTL) are assessed, and both salinity and temperature are found to influence the thermal biology of <i>Nebrioporus</i>. Mean UTLs are greater in individuals of both species acclimated at high salinities, with salinity appearing to be more important than acclimation temperature in determining UTL. In both taxa, the lowest mean LTLs are recorded in individuals acclimated at the highest salinities and lowest temperatures; temperature‐dependent acclimation is only reported after exposure to relatively high salinities. The data show that salinity influences the thermal tolerance and acclimatory ability of these hypersaline beetles, and that lowered salinity compromises the ability of adult <i>Nebrioporus</i> to cope with both heat and cold. Such an effect may partly explain why specialist species are lost from hypersaline habitats subject to salinity reductions, and suggests that ongoing reduction in salinity may compromise the ability of such specialist taxa to cope with rapid climate change.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles</title></titleInfo><name type="personal"><namePart type="given">DAVID</namePart><namePart type="family">SÁNCHEZ‐FERNÁNDEZ</namePart><affiliation>Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain</affiliation><affiliation>Museo Nacional de Ciencias Naturales, Madrid, Spain</affiliation><affiliation>E-mail: davidsan@um.es</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">PIERO</namePart><namePart type="family">CALOSI</namePart><affiliation>Faculty of Science & Technology, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, U.K.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">ANDREW</namePart><namePart type="family">ATFIELD</namePart><affiliation>Faculty of Science & Technology, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, U.K.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">PAULA</namePart><namePart type="family">ARRIBAS</namePart><affiliation>Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">JOSEFA</namePart><namePart type="family">VELASCO</namePart><affiliation>Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">JOHN I.</namePart><namePart type="family">SPICER</namePart><affiliation>Faculty of Science & Technology, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, U.K.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">ANDRÉS</namePart><namePart type="family">MILLÁN</namePart><affiliation>Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">DAVID T.</namePart><namePart type="family">BILTON</namePart><affiliation>Faculty of Science & Technology, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, U.K.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2010-09</dateIssued><edition>Accepted 15 March 2010First published online 21 May 2010</edition><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">3</extent><extent unit="tables">1</extent><extent unit="references">71</extent></physicalDescription><abstract lang="en">Inland saline waters are globally threatened habitats that harbour unique assemblages of specialist invertebrates. In many Mediterranean regions, irrigation associated with intensive agriculture is lowering the salinity of these habitats, resulting in the loss of their specialist biota, although the mechanisms by which reductions in salinity lead to species loss are poorly understood. In the present study, the effects of reduced salinity on the temperature tolerance and thermal acclimatory abilities of two related species of hypersaline water beetles, Nebrioporus baeticus (Schaum) and Nebrioporus ceresyi (Aubé), are explored. Both upper (UTL) and lower thermal limits (LTL) are assessed, and both salinity and temperature are found to influence the thermal biology of Nebrioporus. Mean UTLs are greater in individuals of both species acclimated at high salinities, with salinity appearing to be more important than acclimation temperature in determining UTL. In both taxa, the lowest mean LTLs are recorded in individuals acclimated at the highest salinities and lowest temperatures; temperature‐dependent acclimation is only reported after exposure to relatively high salinities. The data show that salinity influences the thermal tolerance and acclimatory ability of these hypersaline beetles, and that lowered salinity compromises the ability of adult Nebrioporus to cope with both heat and cold. Such an effect may partly explain why specialist species are lost from hypersaline habitats subject to salinity reductions, and suggests that ongoing reduction in salinity may compromise the ability of such specialist taxa to cope with rapid climate change.</abstract><subject lang="en"><genre>keywords</genre><topic>Climate change</topic><topic>inland saline waters</topic><topic>salinity tolerance</topic><topic>thermal physiology</topic></subject><relatedItem type="host"><titleInfo><title>Physiological Entomology</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0307-6962</identifier><identifier type="eISSN">1365-3032</identifier><identifier type="DOI">10.1111/(ISSN)1365-3032</identifier><identifier type="PublisherID">PHEN</identifier><part><date>2010</date><detail type="volume"><caption>vol.</caption><number>35</number></detail><detail type="issue"><caption>no.</caption><number>3</number></detail><extent unit="pages"><start>265</start><end>273</end><total>9</total></extent></part></relatedItem><identifier type="istex">1704620209528A89A9A12FDA684AE2F09F50FB7C</identifier><identifier type="DOI">10.1111/j.1365-3032.2010.00734.x</identifier><identifier type="ArticleID">PHEN734</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2010 The Authors. 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