Quasi-planktonic behavior of foraging top marine predators.
Identifieur interne : 002645 ( PubMed/Corpus ); précédent : 002644; suivant : 002646Quasi-planktonic behavior of foraging top marine predators.
Auteurs : Alice Della Penna ; Silvia De Monte ; Elodie Kestenare ; Christophe Guinet ; Francesco D'OvidioSource :
- Scientific reports [ 2045-2322 ] ; 2015.
English descriptors
- KwdEn :
- Accelerometry (methods), Algorithms, Animal Migration (physiology), Animals, Diving (physiology), Ecosystem, Feeding Behavior (physiology), Geography, Marine Biology, Models, Theoretical, Oceanography (methods), Oceans and Seas, Plankton (physiology), Predatory Behavior (physiology), Satellite Communications, Seals, Earless (physiology), Swimming (physiology), Water Movements.
- MESH :
Abstract
Monitoring marine top predators is fundamental for assessing the health and functioning of open ocean ecosystems. Although recently tracking observations have substantially increased, factors determining the horizontal exploration of the ocean by marine predators are still largely unknown, especially at the scale of behavioral switches (1-100 km, days-weeks). It is commonly assumed that the influence of water movement can be neglected for animals capable of swimming faster than the current. Here, we challenge this assumption by combining the use of biologging (GPS and accelerometry), satellite altimetry and in-situ oceanographic data (ADCP and drifting buoys) to investigate the effect of the mesoscale ocean dynamics on a marine predator, the southern elephant seal. A Lagrangian approach reveals that trajectories of elephant seals are characterized by quasi-planktonic bouts where the animals are horizontally drifting. These bouts correspond to periods of increased foraging effort, indicating that in the quasi-planktonic conditions energy is allocated to diving and chasing, rather than in horizontal search of favourable grounds. These results suggest that mesoscale features like eddies and fronts may act as a focal points for trophic interactions not only by bottom-up modulation of nutrient injection, but also by directly entraining horizontal displacements of the upper trophic levels.
DOI: 10.1038/srep18063
PubMed: 26666350
Links to Exploration step
pubmed:26666350Le document en format XML
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en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse III (OMP) and IRD, Toulouse, France.</nlm:affiliation></affiliation></author><author><name sortKey="Guinet, Christophe" sort="Guinet, Christophe" uniqKey="Guinet C" first="Christophe" last="Guinet">Christophe Guinet</name><affiliation><nlm:affiliation>Centre d'Etudes Biologiques de Chizé, 79360 Villiers-en-Bois, France.</nlm:affiliation></affiliation></author><author><name sortKey="D Ovidio, Francesco" sort="D Ovidio, Francesco" uniqKey="D Ovidio F" first="Francesco" last="D'Ovidio">Francesco D'Ovidio</name><affiliation><nlm:affiliation>Sorbonne Universités, UPMC Univ Paris 06, UMR 7159, LOCEAN-IPSL CNRS/UPMC/IRD/MNHN, F-75005, Paris, France.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:26666350</idno><idno type="pmid">26666350</idno><idno type="doi">10.1038/srep18063</idno><idno 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Elodie" sort="Kestenare, Elodie" uniqKey="Kestenare E" first="Elodie" last="Kestenare">Elodie Kestenare</name><affiliation><nlm:affiliation>Laboratoire d'Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse III (OMP) and IRD, Toulouse, France.</nlm:affiliation></affiliation></author><author><name sortKey="Guinet, Christophe" sort="Guinet, Christophe" uniqKey="Guinet C" first="Christophe" last="Guinet">Christophe Guinet</name><affiliation><nlm:affiliation>Centre d'Etudes Biologiques de Chizé, 79360 Villiers-en-Bois, France.</nlm:affiliation></affiliation></author><author><name sortKey="D Ovidio, Francesco" sort="D Ovidio, Francesco" uniqKey="D Ovidio F" first="Francesco" last="D'Ovidio">Francesco D'Ovidio</name><affiliation><nlm:affiliation>Sorbonne Universités, UPMC Univ Paris 06, UMR 7159, LOCEAN-IPSL CNRS/UPMC/IRD/MNHN, F-75005, Paris, France.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Scientific reports</title><idno type="eISSN">2045-2322</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accelerometry (methods)</term><term>Algorithms</term><term>Animal Migration (physiology)</term><term>Animals</term><term>Diving (physiology)</term><term>Ecosystem</term><term>Feeding Behavior (physiology)</term><term>Geography</term><term>Marine Biology</term><term>Models, Theoretical</term><term>Oceanography (methods)</term><term>Oceans and Seas</term><term>Plankton (physiology)</term><term>Predatory Behavior (physiology)</term><term>Satellite Communications</term><term>Seals, Earless (physiology)</term><term>Swimming (physiology)</term><term>Water Movements</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Accelerometry</term><term>Oceanography</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Animal Migration</term><term>Diving</term><term>Feeding Behavior</term><term>Plankton</term><term>Predatory Behavior</term><term>Seals, Earless</term><term>Swimming</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Algorithms</term><term>Animals</term><term>Ecosystem</term><term>Geography</term><term>Marine Biology</term><term>Models, Theoretical</term><term>Oceans and Seas</term><term>Satellite Communications</term><term>Water Movements</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Monitoring marine top predators is fundamental for assessing the health and functioning of open ocean ecosystems. Although recently tracking observations have substantially increased, factors determining the horizontal exploration of the ocean by marine predators are still largely unknown, especially at the scale of behavioral switches (1-100 km, days-weeks). It is commonly assumed that the influence of water movement can be neglected for animals capable of swimming faster than the current. Here, we challenge this assumption by combining the use of biologging (GPS and accelerometry), satellite altimetry and in-situ oceanographic data (ADCP and drifting buoys) to investigate the effect of the mesoscale ocean dynamics on a marine predator, the southern elephant seal. A Lagrangian approach reveals that trajectories of elephant seals are characterized by quasi-planktonic bouts where the animals are horizontally drifting. These bouts correspond to periods of increased foraging effort, indicating that in the quasi-planktonic conditions energy is allocated to diving and chasing, rather than in horizontal search of favourable grounds. These results suggest that mesoscale features like eddies and fronts may act as a focal points for trophic interactions not only by bottom-up modulation of nutrient injection, but also by directly entraining horizontal displacements of the upper trophic levels.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26666350</PMID><DateCreated><Year>2015</Year><Month>12</Month><Day>15</Day></DateCreated><DateCompleted><Year>2016</Year><Month>11</Month><Day>07</Day></DateCompleted><DateRevised><Year>2016</Year><Month>12</Month><Day>30</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">2045-2322</ISSN><JournalIssue CitedMedium="Internet"><Volume>5</Volume><PubDate><Year>2015</Year><Month>Dec</Month><Day>15</Day></PubDate></JournalIssue><Title>Scientific reports</Title><ISOAbbreviation>Sci Rep</ISOAbbreviation></Journal><ArticleTitle>Quasi-planktonic behavior of foraging top marine predators.</ArticleTitle><Pagination><MedlinePgn>18063</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1038/srep18063</ELocationID><Abstract><AbstractText>Monitoring marine top predators is fundamental for assessing the health and functioning of open ocean ecosystems. Although recently tracking observations have substantially increased, factors determining the horizontal exploration of the ocean by marine predators are still largely unknown, especially at the scale of behavioral switches (1-100 km, days-weeks). It is commonly assumed that the influence of water movement can be neglected for animals capable of swimming faster than the current. Here, we challenge this assumption by combining the use of biologging (GPS and accelerometry), satellite altimetry and in-situ oceanographic data (ADCP and drifting buoys) to investigate the effect of the mesoscale ocean dynamics on a marine predator, the southern elephant seal. A Lagrangian approach reveals that trajectories of elephant seals are characterized by quasi-planktonic bouts where the animals are horizontally drifting. These bouts correspond to periods of increased foraging effort, indicating that in the quasi-planktonic conditions energy is allocated to diving and chasing, rather than in horizontal search of favourable grounds. These results suggest that mesoscale features like eddies and fronts may act as a focal points for trophic interactions not only by bottom-up modulation of nutrient injection, but also by directly entraining horizontal displacements of the upper trophic levels.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Della Penna</LastName><ForeName>Alice</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Sorbonne Universités, UPMC Univ Paris 06, UMR 7159, LOCEAN-IPSL CNRS/UPMC/IRD/MNHN, F-75005, Paris, France.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Univ Paris Diderot Cité, 5 Rue Thomas Mann, 75013 Paris, France.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CSIRO-UTAS Quantitative Marine Science Program, IMAS, Private Bag 129, Hobart, Tasmania 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>De Monte</LastName><ForeName>Silvia</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Ecole Normale Supérieure, Institut de Biologie de l'ENS (IBENS), UMR CNRS 8197 and INSERM U1024, 46 rue d'Ulm, F-75005 Paris, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kestenare</LastName><ForeName>Elodie</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Laboratoire d'Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse III (OMP) and IRD, Toulouse, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Guinet</LastName><ForeName>Christophe</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Centre d'Etudes Biologiques de Chizé, 79360 Villiers-en-Bois, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>d'Ovidio</LastName><ForeName>Francesco</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Sorbonne Universités, UPMC Univ Paris 06, UMR 7159, LOCEAN-IPSL CNRS/UPMC/IRD/MNHN, F-75005, Paris, France.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>12</Month><Day>15</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Sci Rep</MedlineTA><NlmUniqueID>101563288</NlmUniqueID><ISSNLinking>2045-2322</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>PLoS One. 2012;7(1):e30161</RefSource><PMID Version="1">22272294</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Biol Lett. 2005 Sep 22;1(3):303-5</RefSource><PMID Version="1">17148193</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Proc Natl 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