The impact of grubbing by Greylag Geese ( Anser anser ) on the vegetation dynamics of a tidal marsh
Identifieur interne : 000E78 ( Istex/Corpus ); précédent : 000E77; suivant : 000E79The impact of grubbing by Greylag Geese ( Anser anser ) on the vegetation dynamics of a tidal marsh
Auteurs : Peter Esselink ; Guido J. F. Helder ; Bart A. Aerts ; Klaus GerdesSource :
- Aquatic Botany [ 0304-3770 ] ; 1997.
Abstract
This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of Spartina anglica and tubers of Scirpus maritimus. Both plant species were mapped in a few study sections in 1983 and 1991. The area where S. anglica was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. Scirpus maritimus was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of S. maritimus. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. It is suggested that the apparent overexploitation of S. maritimus by Greylag Geese might be related to the species' population response to the increased availability of agricultural food resources in western Europe.
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DOI: 10.1016/S0304-3770(96)01076-5
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>The impact of grubbing by Greylag Geese ( Anser anser ) on the vegetation dynamics of a tidal marsh</title><author><name sortKey="Esselink, Peter" sort="Esselink, Peter" uniqKey="Esselink P" first="Peter" last="Esselink">Peter Esselink</name><affiliation><mods:affiliation>E-mail: p.esselink@biol.rug.nl</mods:affiliation></affiliation><affiliation><mods:affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Helder, Guido J F" sort="Helder, Guido J F" uniqKey="Helder G" first="Guido J. F." last="Helder">Guido J. F. Helder</name><affiliation><mods:affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Aerts, Bart A" sort="Aerts, Bart A" uniqKey="Aerts B" first="Bart A." last="Aerts">Bart A. Aerts</name><affiliation><mods:affiliation>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Gerdes, Klaus" sort="Gerdes, Klaus" uniqKey="Gerdes K" first="Klaus" last="Gerdes">Klaus Gerdes</name><affiliation><mods:affiliation>Mozartstrasse 20, 26789 Leer, Germany</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:2494FF4C62F799E5D484DB1CFC72804CADDF58EC</idno><date when="1997" year="1997">1997</date><idno type="doi">10.1016/S0304-3770(96)01076-5</idno><idno type="url">https://api.istex.fr/document/2494FF4C62F799E5D484DB1CFC72804CADDF58EC/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000E78</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000E78</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">The impact of grubbing by Greylag Geese ( Anser anser ) on the vegetation dynamics of a tidal marsh</title><author><name sortKey="Esselink, Peter" sort="Esselink, Peter" uniqKey="Esselink P" first="Peter" last="Esselink">Peter Esselink</name><affiliation><mods:affiliation>E-mail: p.esselink@biol.rug.nl</mods:affiliation></affiliation><affiliation><mods:affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Helder, Guido J F" sort="Helder, Guido J F" uniqKey="Helder G" first="Guido J. F." last="Helder">Guido J. F. Helder</name><affiliation><mods:affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Aerts, Bart A" sort="Aerts, Bart A" uniqKey="Aerts B" first="Bart A." last="Aerts">Bart A. Aerts</name><affiliation><mods:affiliation>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Gerdes, Klaus" sort="Gerdes, Klaus" uniqKey="Gerdes K" first="Klaus" last="Gerdes">Klaus Gerdes</name><affiliation><mods:affiliation>Mozartstrasse 20, 26789 Leer, Germany</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Aquatic Botany</title><title level="j" type="abbrev">AQBOT</title><idno type="ISSN">0304-3770</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1997">1997</date><biblScope unit="volume">55</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="261">261</biblScope><biblScope unit="page" to="279">279</biblScope></imprint><idno type="ISSN">0304-3770</idno></series><idno type="istex">2494FF4C62F799E5D484DB1CFC72804CADDF58EC</idno><idno type="DOI">10.1016/S0304-3770(96)01076-5</idno><idno type="PII">S0304-3770(96)01076-5</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0304-3770</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of Spartina anglica and tubers of Scirpus maritimus. Both plant species were mapped in a few study sections in 1983 and 1991. The area where S. anglica was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. Scirpus maritimus was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of S. maritimus. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. It is suggested that the apparent overexploitation of S. maritimus by Greylag Geese might be related to the species' population response to the increased availability of agricultural food resources in western Europe.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Peter Esselink</name><affiliations><json:string>E-mail: p.esselink@biol.rug.nl</json:string><json:string>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</json:string></affiliations></json:item><json:item><name>Guido J.F. Helder</name><affiliations><json:string>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</json:string></affiliations></json:item><json:item><name>Bart A. Aerts</name><affiliations><json:string>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</json:string></affiliations></json:item><json:item><name>Klaus Gerdes</name><affiliations><json:string>Mozartstrasse 20, 26789 Leer, Germany</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Greylag geese</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Grubbing</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Scirpus maritimus</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Spartina anglica</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Tidal marsh</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Vegetation dynamics</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of Spartina anglica and tubers of Scirpus maritimus. Both plant species were mapped in a few study sections in 1983 and 1991. The area where S. anglica was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. Scirpus maritimus was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of S. maritimus. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. 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Tel: +31 50 3632273</p></note><affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation></author><author xml:id="author-2"><persName><forename type="first">Guido J.F.</forename><surname>Helder</surname></persName><affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation></author><author xml:id="author-3"><persName><forename type="first">Bart A.</forename><surname>Aerts</surname></persName><affiliation>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation></author><author xml:id="author-4"><persName><forename type="first">Klaus</forename><surname>Gerdes</surname></persName><affiliation>Mozartstrasse 20, 26789 Leer, Germany</affiliation></author></analytic><monogr><title level="j">Aquatic Botany</title><title level="j" type="abbrev">AQBOT</title><idno type="pISSN">0304-3770</idno><idno type="PII">S0304-3770(00)X0017-4</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1997"></date><biblScope unit="volume">55</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="261">261</biblScope><biblScope unit="page" to="279">279</biblScope></imprint></monogr><idno type="istex">2494FF4C62F799E5D484DB1CFC72804CADDF58EC</idno><idno type="DOI">10.1016/S0304-3770(96)01076-5</idno><idno type="PII">S0304-3770(96)01076-5</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1997</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of Spartina anglica and tubers of Scirpus maritimus. Both plant species were mapped in a few study sections in 1983 and 1991. The area where S. anglica was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. Scirpus maritimus was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of S. maritimus. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. It is suggested that the apparent overexploitation of S. maritimus by Greylag Geese might be related to the species' population response to the increased availability of agricultural food resources in western Europe.</p></abstract><textClass><keywords scheme="keyword"><list><head>Keywords</head><item><term>Greylag geese</term></item><item><term>Grubbing</term></item><item><term>Scirpus maritimus</term></item><item><term>Spartina anglica</term></item><item><term>Tidal marsh</term></item><item><term>Vegetation dynamics</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1997">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/2494FF4C62F799E5D484DB1CFC72804CADDF58EC/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>AQBOT</jid><aid>96010765</aid><ce:pii>S0304-3770(96)01076-5</ce:pii><ce:doi>10.1016/S0304-3770(96)01076-5</ce:doi><ce:copyright type="unknown" year="1997"></ce:copyright></item-info><head><ce:title>The impact of grubbing by Greylag Geese (<ce:italic>Anser anser</ce:italic>) on the vegetation dynamics of a tidal marsh</ce:title><ce:author-group><ce:author><ce:given-name>Peter</ce:given-name><ce:surname>Esselink</ce:surname><ce:cross-ref refid="COR1"><ce:sup>∗</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>b</ce:sup></ce:cross-ref><ce:e-address>p.esselink@biol.rug.nl</ce:e-address></ce:author><ce:author><ce:given-name>Guido J.F.</ce:given-name><ce:surname>Helder</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Bart A.</ce:given-name><ce:surname>Aerts</ce:surname><ce:cross-ref refid="AFF3"><ce:sup>c</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Klaus</ce:given-name><ce:surname>Gerdes</ce:surname><ce:cross-ref refid="AFF4"><ce:sup>d</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>Stichting Het Groninger Landschap, Ossenmarkt 9, 9712 NZ Groningen, The Netherlands</ce:textfn></ce:affiliation><ce:affiliation id="AFF3"><ce:label>c</ce:label><ce:textfn>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</ce:textfn></ce:affiliation><ce:affiliation id="AFF4"><ce:label>d</ce:label><ce:textfn>Mozartstrasse 20, 26789 Leer, Germany</ce:textfn></ce:affiliation><ce:correspondence id="COR1"><ce:label>∗</ce:label><ce:text>Corresponding author at: Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands. Tel: +31 50 3632273</ce:text></ce:correspondence></ce:author-group><ce:date-accepted day="9" month="7" year="1996"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of <ce:italic>Spartina anglica</ce:italic> and tubers of <ce:italic>Scirpus maritimus</ce:italic>. Both plant species were mapped in a few study sections in 1983 and 1991. The area where <ce:italic>S. anglica</ce:italic> was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. <ce:italic>Scirpus maritimus</ce:italic> was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of <ce:italic>S. maritimus</ce:italic>. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. It is suggested that the apparent overexploitation of <ce:italic>S. maritimus</ce:italic> by Greylag Geese might be related to the species' population response to the increased availability of agricultural food resources in western Europe.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Greylag geese</ce:text></ce:keyword><ce:keyword><ce:text>Grubbing</ce:text></ce:keyword><ce:keyword><ce:text><ce:italic>Scirpus maritimus</ce:italic></ce:text></ce:keyword><ce:keyword><ce:text><ce:italic>Spartina anglica</ce:italic></ce:text></ce:keyword><ce:keyword><ce:text>Tidal marsh</ce:text></ce:keyword><ce:keyword><ce:text>Vegetation dynamics</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>The impact of grubbing by Greylag Geese ( Anser anser ) on the vegetation dynamics of a tidal marsh</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>The impact of grubbing by Greylag Geese (</title></titleInfo><name type="personal"><namePart type="given">Peter</namePart><namePart type="family">Esselink</namePart><affiliation>E-mail: p.esselink@biol.rug.nl</affiliation><affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation><description>Corresponding author at: Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands. Tel: +31 50 3632273</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Guido J.F.</namePart><namePart type="family">Helder</namePart><affiliation>Laboratory of Plant Ecology, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Bart A.</namePart><namePart type="family">Aerts</namePart><affiliation>Zoological Laboratory, University of Groningen, PO Box 14, 9750 AA Haren, The Netherlands</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Klaus</namePart><namePart type="family">Gerdes</namePart><affiliation>Mozartstrasse 20, 26789 Leer, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1997</dateIssued><copyrightDate encoding="w3cdtf">1997</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">This study shows that staging Greylag Geese may have a considerable impact on the vegetation dynamics of a salt marsh when they grub for below-ground resources. The Ems Dollard Estuary is a traditional haunt for migrating Greylags. After 1975, the maximum number during fall migration increased more than tenfold in the estuary, thus allowing assessment of goose impact on the marsh vegetation. The number of wintering Greylags was negatively related with the winter severity; up to 4000 birds wintered in the area in the 1980s and early 1990s. The geese feed on above ground biomass of grasses and dicotyledons, as well as on rhizomes and winter buds of Spartina anglica and tubers of Scirpus maritimus. Both plant species were mapped in a few study sections in 1983 and 1991. The area where S. anglica was (co)dominant decreased by more than 60% during this period. Exploitation of juvenile plants by geese prevented new establishment in seemingly suitable habitat. Scirpus maritimus was dominant at the edges of the marsh at the beginning of the 1980s, but decreased dramatically. At the edges of one marsh sector, Greylags peaked in three consecutive, very mild, winters, during which they apparently depleted the food stocks. Greylags removed especially the shallow-buried tubers of S. maritimus. The tuber biomass needed two years to recover to a level typical for an exclosed stand. Recovery time was even longer when the accessibility of tubers to geese was enhanced by an artificial gully. It is suggested that the apparent overexploitation of S. maritimus by Greylag Geese might be related to the species' population response to the increased availability of agricultural food resources in western Europe.</abstract><subject><genre>Keywords</genre><topic>Greylag geese</topic><topic>Grubbing</topic><topic>Scirpus maritimus</topic><topic>Spartina anglica</topic><topic>Tidal marsh</topic><topic>Vegetation dynamics</topic></subject><relatedItem type="host"><titleInfo><title>Aquatic Botany</title></titleInfo><titleInfo type="abbreviated"><title>AQBOT</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199701</dateIssued></originInfo><identifier type="ISSN">0304-3770</identifier><identifier type="PII">S0304-3770(00)X0017-4</identifier><part><date>199701</date><detail type="volume"><number>55</number><caption>vol.</caption></detail><detail type="issue"><number>4</number><caption>no.</caption></detail><extent unit="issue pages"><start>229</start><end>308</end></extent><extent unit="pages"><start>261</start><end>279</end></extent></part></relatedItem><identifier type="istex">2494FF4C62F799E5D484DB1CFC72804CADDF58EC</identifier><identifier type="DOI">10.1016/S0304-3770(96)01076-5</identifier><identifier type="PII">S0304-3770(96)01076-5</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata></istex></record>Pour manipuler ce document sous Unix (Dilib)
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