<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-04612776</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-04T11:48:59+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">Fitness consequences of individual specialisation in resource use and trophic morphology in European eels</title>
            <author role="aut">
              <persName>
                <forename type="first">Julien</forename>
                <surname>Cucherousset</surname>
              </persName>
              <idno type="halauthorid">140517-0</idno>
              <affiliation ref="#struct-1200985"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Anthony</forename>
                <surname>Acou</surname>
              </persName>
              <email type="md5">3237cd6f256f1caf3438ff2755c89000</email>
              <email type="domain">afbiodiversite.fr</email>
              <idno type="idhal" notation="string">acou-user</idno>
              <idno type="idhal" notation="numeric">1179399</idno>
              <idno type="halauthorid" notation="string">224881-1179399</idno>
              <idno type="ORCID">https://orcid.org/0000-0001-5166-0912</idno>
              <idno type="GOOGLE SCHOLAR">https://scholar.google.fr/citations?user=QycuIpoAAAAJ</idno>
              <affiliation ref="#struct-7512"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Simon</forename>
                <surname>Blanchet</surname>
              </persName>
              <idno type="halauthorid">2169653-0</idno>
              <affiliation ref="#struct-511491"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">J. Robert</forename>
                <surname>Britton</surname>
              </persName>
              <idno type="halauthorid">962995-0</idno>
              <affiliation ref="#struct-237136"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">William</forename>
                <surname>Beaumont</surname>
              </persName>
              <idno type="halauthorid">2938205-0</idno>
              <affiliation ref="#struct-507241"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Rodolphe</forename>
                <surname>Gozlan</surname>
              </persName>
              <idno type="halauthorid">1034391-0</idno>
              <affiliation ref="#struct-1200985"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Acou</forename>
                <surname>Anthony</surname>
              </persName>
              <email type="md5">e11243d8481f5551fd27f179fcb04d72</email>
              <email type="domain">mnhn.fr</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2024-06-14 17:29:58</date>
              <date type="whenModified">2025-10-22 18:04:09</date>
              <date type="whenReleased">2024-06-14 17:29:58</date>
              <date type="whenProduced">2011-04-01</date>
              <ref type="externalLink" target="https://api.istex.fr/ark:/67375/VQC-PRDVVG74-6/fulltext.pdf?sid=hal"/>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="1390610">
                <persName>
                  <forename>Acou</forename>
                  <surname>Anthony</surname>
                </persName>
                <email type="md5">e11243d8481f5551fd27f179fcb04d72</email>
                <email type="domain">mnhn.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-04612776</idno>
            <idno type="halUri">https://hal.science/hal-04612776</idno>
            <idno type="halBibtex">cucherousset:hal-04612776</idno>
            <idno type="halRefHtml">&lt;i&gt;Oecologia&lt;/i&gt;, 2011, 167 (1), pp.75-84. &lt;a target="_blank" href="https://dx.doi.org/10.1007/s00442-011-1974-4"&gt;&amp;#x27E8;10.1007/s00442-011-1974-4&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">Oecologia, 2011, 167 (1), pp.75-84. &amp;#x27E8;10.1007/s00442-011-1974-4&amp;#x27E9;</idno>
            <availability status="restricted"/>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="SDE">Sciences De l'Environnement</idno>
            <idno type="stamp" n="MNHN">Muséum National d'Histoire Naturelle</idno>
            <idno type="stamp" n="UNIV-TLSE3">Université de Toulouse</idno>
            <idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
            <idno type="stamp" n="GIP-BE">GIP Bretagne Environnement</idno>
            <idno type="stamp" n="SETE">Station d'écologie théorique et expérimentale</idno>
            <idno type="stamp" n="ALLIANCE-SU"> Alliance Sorbonne Université</idno>
            <idno type="stamp" n="UNIV-UT3">Université Toulouse 3</idno>
            <idno type="stamp" n="UT3-INP">Université de Toulouse / Toulouse INP</idno>
            <idno type="stamp" n="UT3-TOULOUSEINP">Université de Toulouse / Toulouse INP</idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">Fitness consequences of individual specialisation in resource use and trophic morphology in European eels</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Julien</forename>
                    <surname>Cucherousset</surname>
                  </persName>
                  <idno type="halauthorid">140517-0</idno>
                  <affiliation ref="#struct-1200985"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Anthony</forename>
                    <surname>Acou</surname>
                  </persName>
                  <email type="md5">3237cd6f256f1caf3438ff2755c89000</email>
                  <email type="domain">afbiodiversite.fr</email>
                  <idno type="idhal" notation="string">acou-user</idno>
                  <idno type="idhal" notation="numeric">1179399</idno>
                  <idno type="halauthorid" notation="string">224881-1179399</idno>
                  <idno type="ORCID">https://orcid.org/0000-0001-5166-0912</idno>
                  <idno type="GOOGLE SCHOLAR">https://scholar.google.fr/citations?user=QycuIpoAAAAJ</idno>
                  <affiliation ref="#struct-7512"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Simon</forename>
                    <surname>Blanchet</surname>
                  </persName>
                  <idno type="halauthorid">2169653-0</idno>
                  <affiliation ref="#struct-511491"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">J. Robert</forename>
                    <surname>Britton</surname>
                  </persName>
                  <idno type="halauthorid">962995-0</idno>
                  <affiliation ref="#struct-237136"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">William</forename>
                    <surname>Beaumont</surname>
                  </persName>
                  <idno type="halauthorid">2938205-0</idno>
                  <affiliation ref="#struct-507241"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Rodolphe</forename>
                    <surname>Gozlan</surname>
                  </persName>
                  <idno type="halauthorid">1034391-0</idno>
                  <affiliation ref="#struct-1200985"/>
                </author>
              </analytic>
              <monogr>
                <idno type="halJournalId" status="VALID">7562</idno>
                <idno type="issn">0029-8549</idno>
                <idno type="eissn">1432-1939</idno>
                <title level="j">Oecologia</title>
                <imprint>
                  <publisher>Springer Verlag</publisher>
                  <biblScope unit="volume">167</biblScope>
                  <biblScope unit="issue">1</biblScope>
                  <biblScope unit="pp">75-84</biblScope>
                  <date type="datePub">2011-04-01</date>
                  <date type="dateEpub">2011-04-01</date>
                </imprint>
              </monogr>
              <idno type="doi">10.1007/s00442-011-1974-4</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <keywords scheme="author">
                <term xml:lang="en">Niche segregation; disruptive selection; resource polymorphism; stable isotope analyses; interindividual variability</term>
              </keywords>
              <classCode scheme="halDomain" n="sde.be">Environmental Sciences/Biodiversity and Ecology</classCode>
              <classCode scheme="halDomain" n="sdu.ocean">Sciences of the Universe [physics]/Ocean, Atmosphere</classCode>
              <classCode scheme="halTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halOldTypology" n="ART">Journal articles</classCode>
              <classCode scheme="halTreeTypology" n="ART">Journal articles</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>Individual specialisation can lead to the exploitation of different trophic and habitat resources and the production of morphological variability within a population. Although the ecological causes of this phenomenon are relatively well known, its consequences on individual fitness are less recognised. We have investigated the extent of individual specialisation in resource use and trophic morphology and its fitness consequences through a combination of tagging–recapture, stable isotope analyses and telemetry. The European eel (Anguilla anguilla) was the model species as it displays significant variability in head shape. Independent to their body length, individuals with broader heads displayed a significantly higher trophic position (d15N) than individuals with narrower heads. This corresponded with a significantly higher proportion of prey fish in their diet compared with invertebrates and was associated with the use of a habitat niche located further from the river bank. The European eel therefore provides a rare empirical example of individual specialisation in resource use and trophic morphology in a natural population occurring at a very small spatial scale. Individuals with intermediate head morphology displayed lower body condition (a proxy of fitness) than individuals with extreme head morphology (i.e. narrower and broader headed individuals), demonstrating the existence of disruptive selection associated with individual specialisation.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="institution" xml:id="struct-1200985" status="INCOMING">
          <orgName>Centre for Conservation Ecology and Environmental Sciences, Bournemouth University</orgName>
          <desc>
            <address>
              <country key="GB"/>
            </address>
          </desc>
        </org>
        <org type="institution" xml:id="struct-7512" status="VALID">
          <idno type="IdRef">026394944</idno>
          <idno type="ROR">https://ror.org/03wkt5x30</idno>
          <orgName>Muséum national d'Histoire naturelle</orgName>
          <orgName type="acronym">MNHN</orgName>
          <desc>
            <address>
              <addrLine>57, rue Cuvier - 75231 Paris Cedex 05</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.mnhn.fr</ref>
          </desc>
        </org>
        <org type="laboratory" xml:id="struct-511491" status="OLD">
          <idno type="ISNI">0000000483408756</idno>
          <idno type="RNSR">201119468T</idno>
          <idno type="ROR">https://ror.org/05d6wfd23</idno>
          <orgName>Station d’Ecologie Expérimentale du CNRS à Moulis</orgName>
          <orgName type="acronym">SEEM</orgName>
          <date type="start">2007-01-01</date>
          <date type="end">2015-12-31</date>
          <desc>
            <address>
              <addrLine>09200 MoulisFrance</addrLine>
              <country key="FR"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-217752" type="direct"/>
            <relation active="#struct-443875" type="indirect"/>
            <relation name="USR2936" active="#struct-441569" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-237136" status="VALID">
          <idno type="ROR">https://ror.org/05wwcw481</idno>
          <orgName>Bournemouth University [Poole]</orgName>
          <orgName type="acronym">BU</orgName>
          <desc>
            <address>
              <addrLine>Fern Barrow, Poole, Dorset, BH12 5BB</addrLine>
              <country key="GB"/>
            </address>
            <ref type="url">https://www.bournemouth.ac.uk/</ref>
          </desc>
        </org>
        <org type="laboratory" xml:id="struct-507241" status="INCOMING">
          <orgName>Salmon and Trout Research Centre</orgName>
          <desc>
            <address>
              <country key="GB"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-507239" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-217752" status="OLD">
          <idno type="IdRef">026404672</idno>
          <idno type="ISNI">0000000121617331</idno>
          <idno type="ROR">https://ror.org/02v6kpv12</idno>
          <idno type="Wikidata">Q1273188</idno>
          <orgName>Université Toulouse III - Paul Sabatier</orgName>
          <orgName type="acronym">UT3</orgName>
          <date type="end">2025-01-01</date>
          <desc>
            <address>
              <addrLine>118 route de Narbonne - 31062 Toulouse</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.univ-tlse3.fr/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-443875" type="direct"/>
          </listRelation>
        </org>
        <org type="regroupinstitution" xml:id="struct-443875" status="VALID">
          <idno type="ROR">https://ror.org/017tgbk05</idno>
          <orgName>Communauté d'universités et établissements de Toulouse</orgName>
          <orgName type="acronym">Comue de Toulouse</orgName>
          <desc>
            <address>
              <addrLine>41 Allée Jules Guesde, 31000 Toulouse</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.univ-toulouse.fr/</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-441569" status="VALID">
          <idno type="IdRef">02636817X</idno>
          <idno type="ISNI">0000000122597504</idno>
          <idno type="ROR">https://ror.org/02feahw73</idno>
          <orgName>Centre National de la Recherche Scientifique</orgName>
          <orgName type="acronym">CNRS</orgName>
          <date type="start">1939-10-19</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.cnrs.fr/</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-507239" status="INCOMING">
          <orgName>The Game and Wildlife Conservation Trust</orgName>
          <desc>
            <address>
              <country key="GB"/>
            </address>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>