Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species
Identifieur interne : 001367 ( Istex/Corpus ); précédent : 001366; suivant : 001368Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species
Auteurs : K. Douda ; P. Hork ; M. BílSource :
- Animal Conservation [ 1367-9430 ] ; 2012-10.
Abstract
The conservation of endangered affiliate species, which are critically dependent on the presence of another species, is often hindered by a poor understanding of the relationships between the interacting partners. The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel Unio crassus that result from the impairment of its host resources in Central Europe. The experimental determination of the compatibility of U. crassus parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (Scardinius erythrophthalmus, Phoxinus phoxinus and Cottus gobio) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of U. crassus showed that the local extirpations of U. crassus are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐European decline of U. crassus and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. It demonstrates a strong need for more thorough incorporation of host limitation issues into conservation strategies for U. crassus and probably also for other species of freshwater mussels that were previously considered safe from host limitation.
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DOI: 10.1111/j.1469-1795.2012.00546.x
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Hork</name><affiliation><mods:affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Bil, M" sort="Bil, M" uniqKey="Bil M" first="M." last="Bíl">M. Bíl</name><affiliation><mods:affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:EAAC5D5AB7CC838D90631A0F73923A1F433C1D37</idno><date when="2012" year="2012">2012</date><idno type="doi">10.1111/j.1469-1795.2012.00546.x</idno><idno type="url">https://api.istex.fr/document/EAAC5D5AB7CC838D90631A0F73923A1F433C1D37/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001367</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001367</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species</title><author><name sortKey="Douda, K" sort="Douda, K" uniqKey="Douda K" first="K." last="Douda">K. Douda</name><affiliation><mods:affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</mods:affiliation></affiliation><affiliation><mods:affiliation>Karel Douda, Department of Applied Ecology, Water Research Institute TGM, Podbabská 30, Prague, CZ 160 00, Czech Republic. Tel: +420 220 197 367; Fax: +420 197 514Email:</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: douda@vuv.cz</mods:affiliation></affiliation></author><author><name sortKey="Hork, P" sort="Hork, P" uniqKey="Hork P" first="P." last="Hork">P. Hork</name><affiliation><mods:affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Bil, M" sort="Bil, M" uniqKey="Bil M" first="M." last="Bíl">M. Bíl</name><affiliation><mods:affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Animal Conservation</title><title level="j" type="abbrev">Anim Conserv</title><idno type="ISSN">1367-9430</idno><idno type="eISSN">1469-1795</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2012-10">2012-10</date><biblScope unit="volume">15</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="536">536</biblScope><biblScope unit="page" to="544">544</biblScope></imprint><idno type="ISSN">1367-9430</idno></series><idno type="istex">EAAC5D5AB7CC838D90631A0F73923A1F433C1D37</idno><idno type="DOI">10.1111/j.1469-1795.2012.00546.x</idno><idno type="ArticleID">ACV546</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1367-9430</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">The conservation of endangered affiliate species, which are critically dependent on the presence of another species, is often hindered by a poor understanding of the relationships between the interacting partners. The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel Unio crassus that result from the impairment of its host resources in Central Europe. The experimental determination of the compatibility of U. crassus parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (Scardinius erythrophthalmus, Phoxinus phoxinus and Cottus gobio) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of U. crassus showed that the local extirpations of U. crassus are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐European decline of U. crassus and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. It demonstrates a strong need for more thorough incorporation of host limitation issues into conservation strategies for U. crassus and probably also for other species of freshwater mussels that were previously considered safe from host limitation.</div></front></TEI><istex><corpusName>wiley</corpusName><editor><json:item><name>Matthew Gompper</name></json:item><json:item><name>Jerald Johnson</name></json:item></editor><author><json:item><name>K. Douda</name><affiliations><json:string>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</json:string><json:string>Karel Douda, Department of Applied Ecology, Water Research Institute TGM, Podbabská 30, Prague, CZ 160 00, Czech Republic. Tel: +420 220 197 367; Fax: +420 197 514Email:</json:string><json:string>E-mail: douda@vuv.cz</json:string></affiliations></json:item><json:item><name>P. Horký</name><affiliations><json:string>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</json:string></affiliations></json:item><json:item><name>M. 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The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel Unio crassus that result from the impairment of its host resources in Central Europe. The experimental determination of the compatibility of U. crassus parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (Scardinius erythrophthalmus, Phoxinus phoxinus and Cottus gobio) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of U. crassus showed that the local extirpations of U. crassus are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐European decline of U. crassus and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. 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Animal Conservation © 2012 The Zoological Society of London</p></availability><date>2012-04-11</date></publicationStmt><notesStmt><note>Ministry of Environment of the Czech Republic - No. MZP 0002071101; No. SP/2e7/229/07;</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species</title><author xml:id="author-1"><persName><forename type="first">K.</forename><surname>Douda</surname></persName><email>douda@vuv.cz</email><affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</affiliation><affiliation>Karel Douda, Department of Applied Ecology, Water Research Institute TGM, Podbabská 30, Prague, CZ 160 00, Czech Republic. 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The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel Unio crassus that result from the impairment of its host resources in Central Europe. The experimental determination of the compatibility of U. crassus parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (Scardinius erythrophthalmus, Phoxinus phoxinus and Cottus gobio) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of U. crassus showed that the local extirpations of U. crassus are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐European decline of U. crassus and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. It demonstrates a strong need for more thorough incorporation of host limitation issues into conservation strategies for U. crassus and probably also for other species of freshwater mussels that were previously considered safe from host limitation.</p></abstract><textClass><keywords scheme="keyword"><list><head>keywords</head><item><term>Bivalvia</term></item><item><term>Europe</term></item><item><term>experimental infestation</term></item><item><term>freshwaters</term></item><item><term>glochidia</term></item><item><term>host spectrum</term></item><item><term>Unio crassus</term></item><item><term>Unionidae</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>ORIGINAL ARTICLE</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2011-09-07">Received</change><change when="2012-03-15">Registration</change><change when="2012-04-11">Created</change><change when="2012-10">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/EAAC5D5AB7CC838D90631A0F73923A1F433C1D37/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 type="serialArticle" version="2.0" xml:id="acv546" xml:lang="en"><header><publicationMeta level="product"><doi origin="wiley">10.1111/(ISSN)1469-1795</doi><issn type="print">1367-9430</issn><issn type="electronic">1469-1795</issn><idGroup><id type="product" value="ACV"></id></idGroup><titleGroup><title sort="ANIMAL CONSERVATION" type="main">Animal Conservation</title><title type="short">Anim Conserv</title></titleGroup></publicationMeta><publicationMeta level="part" position="10105"><doi>10.1111/acv.2012.15.issue-5</doi><copyright ownership="thirdParty">Animal Conservation © 2012 The Zoological Society of London</copyright><numberingGroup><numbering number="15" type="journalVolume">15</numbering><numbering type="journalIssue">5</numbering></numberingGroup><coverDate startDate="2012-10">October 2012</coverDate></publicationMeta><publicationMeta level="unit" position="160" status="forIssue" type="article"><doi>10.1111/j.1469-1795.2012.00546.x</doi><idGroup><id type="unit" value="ACV546"></id></idGroup><countGroup><count number="9" type="pageTotal"></count></countGroup><titleGroup><title type="tocHeading1">ORIGINAL ARTICLES</title><title type="articleCategory">ORIGINAL ARTICLE</title></titleGroup><copyright ownership="thirdParty">© 2012 The Authors. 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Tel: +420 220 197 367; Fax: +420 197 514</line><line>Email: <email>douda@vuv.cz</email></line></lineatedText></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:ACV.ACV546.pdf"></link></linkGroup></publicationMeta><contentMeta><titleGroup><title type="short">Host limitation of the thick‐shelled river mussel</title><title type="shortAuthors">K. <fc>D</fc>ouda, <fc>P</fc>. <fc>H</fc>orký and <fc>M</fc>. <fc>B</fc>ílý</title><title type="main">Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species</title></titleGroup><creators><creator affiliationRef="#acv546-aff-0001" corresponding="yes" creatorRole="author" xml:id="acv546-cr-0001"><personName><givenNames>K.</givenNames><familyName>Douda</familyName></personName></creator><creator affiliationRef="#acv546-aff-0001" creatorRole="author" xml:id="acv546-cr-0002"><personName><givenNames>P.</givenNames><familyName>Horký</familyName></personName></creator><creator affiliationRef="#acv546-aff-0001" creatorRole="author" xml:id="acv546-cr-0003"><personName><givenNames>M.</givenNames><familyName>Bílý</familyName></personName></creator><creator creatorRole="editor" xml:id="acv546-cr-0004"><personName><givenNames>Matthew</givenNames><familyName>Gompper</familyName></personName></creator><creator creatorRole="editor" xml:id="acv546-cr-0005"><personName><givenNames>Jerald</givenNames><familyName>Johnson</familyName></personName></creator></creators><affiliationGroup><affiliation countryCode="CZ" xml:id="acv546-aff-0001"><orgDiv>Department of Applied Ecology</orgDiv><orgName>Water Research Institute TGM</orgName><address><city>Prague</city><country>Czech Republic</country></address></affiliation></affiliationGroup><keywordGroup type="author"><keyword xml:id="acv546-kwd-0001"><fc>B</fc>ivalvia</keyword><keyword xml:id="acv546-kwd-0002"><fc>E</fc>urope</keyword><keyword xml:id="acv546-kwd-0003">experimental infestation</keyword><keyword xml:id="acv546-kwd-0004">freshwaters</keyword><keyword xml:id="acv546-kwd-0005">glochidia</keyword><keyword xml:id="acv546-kwd-0006">host spectrum</keyword><keyword xml:id="acv546-kwd-0007"><i><fc>U</fc>nio crassus</i></keyword><keyword xml:id="acv546-kwd-0008"><fc>U</fc>nionidae</keyword></keywordGroup><fundingInfo><fundingAgency>Ministry of Environment of the Czech Republic</fundingAgency><fundingNumber>MZP 0002071101</fundingNumber><fundingNumber>SP/2e7/229/07</fundingNumber></fundingInfo><abstractGroup><abstract type="main"><title type="main">Abstract</title><p>The conservation of endangered affiliate species, which are critically dependent on the presence of another species, is often hindered by a poor understanding of the relationships between the interacting partners. The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel <i><fc>U</fc>nio crassus</i> that result from the impairment of its host resources in <fc>C</fc>entral <fc>E</fc>urope. The experimental determination of the compatibility of <i><fc>U</fc>. crassus</i> parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (<i><fc>S</fc>cardinius erythrophthalmus</i>, <i><fc>P</fc>hoxinus phoxinus</i> and <i><fc>C</fc>ottus gobio</i>) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of <i><fc>U</fc>. crassus</i> showed that the local extirpations of <i><fc>U</fc>. crassus</i> are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐<fc>E</fc>uropean decline of <i><fc>U</fc>. crassus</i> and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. It demonstrates a strong need for more thorough incorporation of host limitation issues into conservation strategies for <i><fc>U</fc>. crassus</i> and probably also for other species of freshwater mussels that were previously considered safe from host limitation.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Host limitation of the thick‐shelled river mussel</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Host limitation of the thick‐shelled river mussel: identifying the threats to declining affiliate species</title></titleInfo><name type="personal"><namePart type="given">K.</namePart><namePart type="family">Douda</namePart><affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</affiliation><affiliation>Karel Douda, Department of Applied Ecology, Water Research Institute TGM, Podbabská 30, Prague, CZ 160 00, Czech Republic. Tel: +420 220 197 367; Fax: +420 197 514Email:</affiliation><affiliation>E-mail: douda@vuv.cz</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">P.</namePart><namePart type="family">Horký</namePart><affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Bílý</namePart><affiliation>Department of Applied Ecology, Water Research Institute TGM, Prague, Czech Republic</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Matthew</namePart><namePart type="family">Gompper</namePart><role><roleTerm type="text">editor</roleTerm></role></name><name type="personal"><namePart type="given">Jerald</namePart><namePart type="family">Johnson</namePart><role><roleTerm type="text">editor</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><dateIssued encoding="w3cdtf">2012-10</dateIssued><dateCreated encoding="w3cdtf">2012-04-11</dateCreated><dateCaptured encoding="w3cdtf">2011-09-07</dateCaptured><dateValid encoding="w3cdtf">2012-03-15</dateValid><copyrightDate encoding="w3cdtf">2012</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>The conservation of endangered affiliate species, which are critically dependent on the presence of another species, is often hindered by a poor understanding of the relationships between the interacting partners. The parasitic stage of endangered unionid bivalves constitutes a tight host–affiliate linkage between the mussels and their host fishes. However, the threats resulting from potential shortages of the host species are rarely sufficiently quantified and incorporated into conservation strategies. In this paper, we integrated both host quality and availability analyses to assess the potential threats to the endangered thick‐shelled river mussel Unio crassus that result from the impairment of its host resources in Central Europe. The experimental determination of the compatibility of U. crassus parasitic larvae (glochidia) with its potential host fishes revealed an intermediate level of host specificity. At least, some glochidia successfully developed on 14 of the 27 potential hosts that were evaluated. Nevertheless, only three fish species (Scardinius erythrophthalmus, Phoxinus phoxinus and Cottus gobio) enabled the majority of the attached glochidia to transform successfully. Subsequently, our analysis of host availability at sites inhabited by living or extirpated populations of U. crassus showed that the local extirpations of U. crassus are likely associated with an impaired status of the fish assemblage and with the absence of the primary host fishes. These results indicate that the availability of host fish resources may have played at least an additive role in the present pan‐European decline of U. crassus and that the evaluation of host limitation without precise data on the host compatibility or host abundance may be ineffective for identifying the threats to particular species. It demonstrates a strong need for more thorough incorporation of host limitation issues into conservation strategies for U. crassus and probably also for other species of freshwater mussels that were previously considered safe from host limitation.</abstract><note type="funding">Ministry of Environment of the Czech Republic - No. MZP 0002071101; No. SP/2e7/229/07; </note><subject><genre>keywords</genre><topic>Bivalvia</topic><topic>Europe</topic><topic>experimental infestation</topic><topic>freshwaters</topic><topic>glochidia</topic><topic>host spectrum</topic><topic>Unio crassus</topic><topic>Unionidae</topic></subject><relatedItem type="host"><titleInfo><title>Animal Conservation</title></titleInfo><titleInfo type="abbreviated"><title>Anim Conserv</title></titleInfo><genre type="journal">journal</genre><subject><genre>article-category</genre><topic>ORIGINAL ARTICLE</topic></subject><identifier type="ISSN">1367-9430</identifier><identifier type="eISSN">1469-1795</identifier><identifier type="DOI">10.1111/(ISSN)1469-1795</identifier><identifier type="PublisherID">ACV</identifier><part><date>2012</date><detail type="volume"><caption>vol.</caption><number>15</number></detail><detail type="issue"><caption>no.</caption><number>5</number></detail><extent unit="pages"><start>536</start><end>544</end><total>9</total></extent></part></relatedItem><identifier type="istex">EAAC5D5AB7CC838D90631A0F73923A1F433C1D37</identifier><identifier type="DOI">10.1111/j.1469-1795.2012.00546.x</identifier><identifier type="ArticleID">ACV546</identifier><accessCondition type="use and reproduction" contentType="copyright">Animal Conservation © 2012 The Zoological Society of London© 2012 The Authors. 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