Combined bio-logging and stable isotopes reveal individual specialisations in a benthic coastal seabird, the Kerguelen shag.
Identifieur interne : 001008 ( PubMed/Corpus ); précédent : 001007; suivant : 001009Combined bio-logging and stable isotopes reveal individual specialisations in a benthic coastal seabird, the Kerguelen shag.
Auteurs : Elodie C M. Camprasse ; Yves Cherel ; John P Y. Arnould ; Andrew J. Hoskins ; Charles-André BostSource :
- PloS one [ 1932-6203 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- chemical : Isotopes.
- Animals, Behavior, Animal, Birds, Feeding Behavior, Predatory Behavior, Remote Sensing Technology.
Abstract
Individual specialisations, which involve the repetition of specific behaviours or dietary choices over time, have been suggested to benefit animals by avoiding competition with conspecifics and increasing individual foraging efficiency. Among seabirds, resident and benthic species are thought to be good models to study inter-individual variation as they repetitively exploit the same environment. We investigated foraging behaviour, isotopic niche and diet in the Kerguelen shag Phalacrocorax verrucosus during both the incubation and chick-rearing periods for the same individuals to determine the effect of sex, breeding stage, body mass and morphometrics on mean foraging metrics and their consistency. There were large differences between individuals in foraging behaviour and consistency, with strong individual specialisations in dive depths and heading from the colony. Stable isotopes revealed specialisations in feeding strategies, across multiple temporal scales. Specifically, individuals showed medium term specialisations in feeding strategies during the breeding season, as well as long-term consistency. A clustering analysis revealed 4 different foraging strategies displaying significantly different δ15N values and body masses. There were no sex or stage biases to clusters and individuals in different clusters did not differ in their morphology. Importantly, the results suggest that the different strategies emphasized were related to individual prey preferences rather than intrinsic characteristics.
DOI: 10.1371/journal.pone.0172278
PubMed: 28264057
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pubmed:28264057Le document en format XML
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Camprasse</name><affiliation><nlm:affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Cherel, Yves" sort="Cherel, Yves" uniqKey="Cherel Y" first="Yves" last="Cherel">Yves Cherel</name><affiliation><nlm:affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</nlm:affiliation></affiliation></author><author><name sortKey="Arnould, John P Y" sort="Arnould, John P Y" uniqKey="Arnould J" first="John P Y" last="Arnould">John P Y. Arnould</name><affiliation><nlm:affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Hoskins, Andrew J" sort="Hoskins, Andrew J" uniqKey="Hoskins A" first="Andrew J" last="Hoskins">Andrew J. Hoskins</name><affiliation><nlm:affiliation>CSIRO Land and Water, Canberra, Australian Capital Territory, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Bost, Charles Andre" sort="Bost, Charles Andre" uniqKey="Bost C" first="Charles-André" last="Bost">Charles-André Bost</name><affiliation><nlm:affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:28264057</idno><idno type="pmid">28264057</idno><idno type="doi">10.1371/journal.pone.0172278</idno><idno type="wicri:Area/PubMed/Corpus">001008</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">001008</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Combined bio-logging and stable isotopes reveal individual specialisations in a benthic coastal seabird, the Kerguelen shag.</title><author><name sortKey="Camprasse, Elodie C M" sort="Camprasse, Elodie C M" uniqKey="Camprasse E" first="Elodie C M" last="Camprasse">Elodie C M. Camprasse</name><affiliation><nlm:affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Cherel, Yves" sort="Cherel, Yves" uniqKey="Cherel Y" first="Yves" last="Cherel">Yves Cherel</name><affiliation><nlm:affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</nlm:affiliation></affiliation></author><author><name sortKey="Arnould, John P Y" sort="Arnould, John P Y" uniqKey="Arnould J" first="John P Y" last="Arnould">John P Y. Arnould</name><affiliation><nlm:affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Hoskins, Andrew J" sort="Hoskins, Andrew J" uniqKey="Hoskins A" first="Andrew J" last="Hoskins">Andrew J. Hoskins</name><affiliation><nlm:affiliation>CSIRO Land and Water, Canberra, Australian Capital Territory, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Bost, Charles Andre" sort="Bost, Charles Andre" uniqKey="Bost C" first="Charles-André" last="Bost">Charles-André Bost</name><affiliation><nlm:affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</nlm:affiliation></affiliation></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Behavior, Animal</term><term>Birds</term><term>Feeding Behavior</term><term>Isotopes</term><term>Predatory Behavior</term><term>Remote Sensing Technology</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Isotopes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Behavior, Animal</term><term>Birds</term><term>Feeding Behavior</term><term>Predatory Behavior</term><term>Remote Sensing Technology</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Individual specialisations, which involve the repetition of specific behaviours or dietary choices over time, have been suggested to benefit animals by avoiding competition with conspecifics and increasing individual foraging efficiency. Among seabirds, resident and benthic species are thought to be good models to study inter-individual variation as they repetitively exploit the same environment. We investigated foraging behaviour, isotopic niche and diet in the Kerguelen shag Phalacrocorax verrucosus during both the incubation and chick-rearing periods for the same individuals to determine the effect of sex, breeding stage, body mass and morphometrics on mean foraging metrics and their consistency. There were large differences between individuals in foraging behaviour and consistency, with strong individual specialisations in dive depths and heading from the colony. Stable isotopes revealed specialisations in feeding strategies, across multiple temporal scales. Specifically, individuals showed medium term specialisations in feeding strategies during the breeding season, as well as long-term consistency. A clustering analysis revealed 4 different foraging strategies displaying significantly different δ15N values and body masses. There were no sex or stage biases to clusters and individuals in different clusters did not differ in their morphology. Importantly, the results suggest that the different strategies emphasized were related to individual prey preferences rather than intrinsic characteristics.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28264057</PMID><DateCreated><Year>2017</Year><Month>03</Month><Day>06</Day></DateCreated><DateCompleted><Year>2017</Year><Month>08</Month><Day>25</Day></DateCompleted><DateRevised><Year>2017</Year><Month>08</Month><Day>25</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>12</Volume><Issue>3</Issue><PubDate><Year>2017</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS ONE</ISOAbbreviation></Journal><ArticleTitle>Combined bio-logging and stable isotopes reveal individual specialisations in a benthic coastal seabird, the Kerguelen shag.</ArticleTitle><Pagination><MedlinePgn>e0172278</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0172278</ELocationID><Abstract><AbstractText>Individual specialisations, which involve the repetition of specific behaviours or dietary choices over time, have been suggested to benefit animals by avoiding competition with conspecifics and increasing individual foraging efficiency. Among seabirds, resident and benthic species are thought to be good models to study inter-individual variation as they repetitively exploit the same environment. We investigated foraging behaviour, isotopic niche and diet in the Kerguelen shag Phalacrocorax verrucosus during both the incubation and chick-rearing periods for the same individuals to determine the effect of sex, breeding stage, body mass and morphometrics on mean foraging metrics and their consistency. There were large differences between individuals in foraging behaviour and consistency, with strong individual specialisations in dive depths and heading from the colony. Stable isotopes revealed specialisations in feeding strategies, across multiple temporal scales. Specifically, individuals showed medium term specialisations in feeding strategies during the breeding season, as well as long-term consistency. A clustering analysis revealed 4 different foraging strategies displaying significantly different δ15N values and body masses. There were no sex or stage biases to clusters and individuals in different clusters did not differ in their morphology. Importantly, the results suggest that the different strategies emphasized were related to individual prey preferences rather than intrinsic characteristics.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Camprasse</LastName><ForeName>Elodie C M</ForeName><Initials>EC</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-6387-3357</Identifier><AffiliationInfo><Affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cherel</LastName><ForeName>Yves</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Arnould</LastName><ForeName>John P Y</ForeName><Initials>JP</Initials><AffiliationInfo><Affiliation>School of Life and Environmental Sciences, Deakin University (Burwood Campus), Geelong, Victoria, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hoskins</LastName><ForeName>Andrew J</ForeName><Initials>AJ</Initials><AffiliationInfo><Affiliation>CSIRO Land and Water, Canberra, Australian Capital Territory, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bost</LastName><ForeName>Charles-André</ForeName><Initials>CA</Initials><AffiliationInfo><Affiliation>Centre d'Etudes Biologique de Chizé (CEBC), Centre National de la Recherche Scientifique, UMR 7372 du CNRS-Université de La Rochelle, Villiers-en-Bois, Deux-Sèvres, France.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>03</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS One</MedlineTA><NlmUniqueID>101285081</NlmUniqueID><ISSNLinking>1932-6203</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007554">Isotopes</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>Oecologia. 2009 Aug;161(2):421-32</RefSource><PMID Version="1">19488787</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>PLoS One. 2013 Oct 21;8(10):e79107</RefSource><PMID Version="1">24205368</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>J Exp Biol. 2011 Feb 1;214(Pt 3):412-21</RefSource><PMID Version="1">21228200</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Trends Ecol Evol. 2011 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