AustralieFrV1, Main, Exploration, bibRecord, 004F10

How age and sex drive the foraging behaviour in the king penguin

Identifieur interne : 004F10 ( Main/Exploration ); précédent : 004F09; suivant : 004F11

How age and sex drive the foraging behaviour in the king penguin

Auteurs : Maryline Le Vaillant [France] ; Céline Le Bohec [France, Monaco, Norvège] ; Onésime Prud'Homme [France] ; Barbara Wienecke [Australie] ; Yvon Le Maho [France] ; Akiko Kato [France] ; Yan Ropert-Coudert [France]

Source :

Marine biology : (Berlin) [ 0025-3162 ] ; 2013.

RBID : Pascal:13-0257819

Descripteurs français

Pascal (Inist)
- Age, Sexe, Milieu marin, Aptenodytes patagonicus, Comportement approvisionnement.
Wicri :
- topic : Milieu marin.

English descriptors

KwdEn :
- Age, Aptenodytes patagonicus, Foraging behavior, Marine environment, Sex.

Abstract

As predicted by life history theory, once recruited into the breeding population and with increasing age, long-lived animals should be able to manage more efficiently the conflict between self-maintenance and reproduction. Consequently, breeding performances should improve with age before stabilizing at a certain level. Using temperature-depth recorders and isotopic analysis, we tested how age affects the foraging behaviour of king penguin Aptenodytes patagonicus during one trip in the chick-rearing phase. Depending on sex and age, king penguins expressed two different foraging strategies. Older birds gained more daily mass per unit body mass than younger ones. Older females conducted shorter trips, dived deeper and performed more prey pursuits. They also had higher blood levels of δ¹⁵N than younger individuals and males indicating sex- and age-specific dietary regimes. However, we found no differences in carbon isotopic signature, suggesting that individuals exploited the same foraging areas independently of sex and age. Our results suggest that king penguins are able to increase the quantity of energy extracted with increasing age and that such a strategy is sex-related. Our study is the first to reveal of an interaction between age and sex in determining foraging efficiency in king penguins.

Affiliations:

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Le document en format XML

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<orgName type="university">Université de Strasbourg</orgName>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CNRS, UMR7178, 23 rue Becquerel</s1>
<s2>67037 Strasbourg</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
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</inist:fA14>
<country>France</country>
<wicri:noRegion>67037 Strasbourg</wicri:noRegion>
<placeName><settlement type="city">Strasbourg</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Kato, Akiko" sort="Kato, Akiko" uniqKey="Kato A" first="Akiko" last="Kato">Akiko Kato</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, 23 rue Becquerel</s1>
<s2>67087 Strasbourg</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>67087 Strasbourg</wicri:noRegion>
<placeName><settlement type="city">Strasbourg</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
<settlement type="city">Strasbourg</settlement>
</placeName>
<orgName type="university">Université de Strasbourg</orgName>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CNRS, UMR7178, 23 rue Becquerel</s1>
<s2>67037 Strasbourg</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>67037 Strasbourg</wicri:noRegion>
<placeName><settlement type="city">Strasbourg</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Ropert Coudert, Yan" sort="Ropert Coudert, Yan" uniqKey="Ropert Coudert Y" first="Yan" last="Ropert-Coudert">Yan Ropert-Coudert</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, 23 rue Becquerel</s1>
<s2>67087 Strasbourg</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>67087 Strasbourg</wicri:noRegion>
<placeName><settlement type="city">Strasbourg</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
<settlement type="city">Strasbourg</settlement>
</placeName>
<orgName type="university">Université de Strasbourg</orgName>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CNRS, UMR7178, 23 rue Becquerel</s1>
<s2>67037 Strasbourg</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>67037 Strasbourg</wicri:noRegion>
<placeName><settlement type="city">Strasbourg</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Marine biology : (Berlin)</title>
<title level="j" type="abbreviated">Mar. biol. : (Berl.)</title>
<idno type="ISSN">0025-3162</idno>
<imprint><date when="2013">2013</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Marine biology : (Berlin)</title>
<title level="j" type="abbreviated">Mar. biol. : (Berl.)</title>
<idno type="ISSN">0025-3162</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Age</term>
<term>Aptenodytes patagonicus</term>
<term>Foraging behavior</term>
<term>Marine environment</term>
<term>Sex</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Age</term>
<term>Sexe</term>
<term>Milieu marin</term>
<term>Aptenodytes patagonicus</term>
<term>Comportement approvisionnement</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Milieu marin</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">As predicted by life history theory, once recruited into the breeding population and with increasing age, long-lived animals should be able to manage more efficiently the conflict between self-maintenance and reproduction. Consequently, breeding performances should improve with age before stabilizing at a certain level. Using temperature-depth recorders and isotopic analysis, we tested how age affects the foraging behaviour of king penguin Aptenodytes patagonicus during one trip in the chick-rearing phase. Depending on sex and age, king penguins expressed two different foraging strategies. Older birds gained more daily mass per unit body mass than younger ones. Older females conducted shorter trips, dived deeper and performed more prey pursuits. They also had higher blood levels of δ<sup>15</sup>
N than younger individuals and males indicating sex- and age-specific dietary regimes. However, we found no differences in carbon isotopic signature, suggesting that individuals exploited the same foraging areas independently of sex and age. Our results suggest that king penguins are able to increase the quantity of energy extracted with increasing age and that such a strategy is sex-related. Our study is the first to reveal of an interaction between age and sex in determining foraging efficiency in king penguins.</div>
</front>
</TEI>
<affiliations><list><country><li>Australie</li>
<li>France</li>
<li>Monaco</li>
<li>Norvège</li>
</country>
<region><li>Alsace (région administrative)</li>
<li>Grand Est</li>
<li>Østlandet</li>
</region>
<settlement><li>Oslo</li>
<li>Strasbourg</li>
</settlement>
<orgName><li>Université de Strasbourg</li>
</orgName>
</list>
<tree><country name="France"><region name="Grand Est"><name sortKey="Le Vaillant, Maryline" sort="Le Vaillant, Maryline" uniqKey="Le Vaillant M" first="Maryline" last="Le Vaillant">Maryline Le Vaillant</name>
</region>
<name sortKey="Kato, Akiko" sort="Kato, Akiko" uniqKey="Kato A" first="Akiko" last="Kato">Akiko Kato</name>
<name sortKey="Kato, Akiko" sort="Kato, Akiko" uniqKey="Kato A" first="Akiko" last="Kato">Akiko Kato</name>
<name sortKey="Le Bohec, Celine" sort="Le Bohec, Celine" uniqKey="Le Bohec C" first="Céline" last="Le Bohec">Céline Le Bohec</name>
<name sortKey="Le Bohec, Celine" sort="Le Bohec, Celine" uniqKey="Le Bohec C" first="Céline" last="Le Bohec">Céline Le Bohec</name>
<name sortKey="Le Maho, Yvon" sort="Le Maho, Yvon" uniqKey="Le Maho Y" first="Yvon" last="Le Maho">Yvon Le Maho</name>
<name sortKey="Le Maho, Yvon" sort="Le Maho, Yvon" uniqKey="Le Maho Y" first="Yvon" last="Le Maho">Yvon Le Maho</name>
<name sortKey="Le Vaillant, Maryline" sort="Le Vaillant, Maryline" uniqKey="Le Vaillant M" first="Maryline" last="Le Vaillant">Maryline Le Vaillant</name>
<name sortKey="Prud Homme, Onesime" sort="Prud Homme, Onesime" uniqKey="Prud Homme O" first="Onésime" last="Prud'Homme">Onésime Prud'Homme</name>
<name sortKey="Prud Homme, Onesime" sort="Prud Homme, Onesime" uniqKey="Prud Homme O" first="Onésime" last="Prud'Homme">Onésime Prud'Homme</name>
<name sortKey="Ropert Coudert, Yan" sort="Ropert Coudert, Yan" uniqKey="Ropert Coudert Y" first="Yan" last="Ropert-Coudert">Yan Ropert-Coudert</name>
<name sortKey="Ropert Coudert, Yan" sort="Ropert Coudert, Yan" uniqKey="Ropert Coudert Y" first="Yan" last="Ropert-Coudert">Yan Ropert-Coudert</name>
</country>
<country name="Monaco"><noRegion><name sortKey="Le Bohec, Celine" sort="Le Bohec, Celine" uniqKey="Le Bohec C" first="Céline" last="Le Bohec">Céline Le Bohec</name>
</noRegion>
<name sortKey="Le Bohec, Celine" sort="Le Bohec, Celine" uniqKey="Le Bohec C" first="Céline" last="Le Bohec">Céline Le Bohec</name>
</country>
<country name="Norvège"><region name="Østlandet"><name sortKey="Le Bohec, Celine" sort="Le Bohec, Celine" uniqKey="Le Bohec C" first="Céline" last="Le Bohec">Céline Le Bohec</name>
</region>
</country>
<country name="Australie"><noRegion><name sortKey="Wienecke, Barbara" sort="Wienecke, Barbara" uniqKey="Wienecke B" first="Barbara" last="Wienecke">Barbara Wienecke</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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How age and sex drive the foraging behaviour in the king penguin

How age and sex drive the foraging behaviour in the king penguin

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