A global perspective on the trophic geography of sharks
Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits....
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| Format: | Article |
| Status: | Accepted version |
| Publication date: | 2018 |
| Country: | España |
| Institution: | Universidad de Barcelona |
| Repository: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/120429 |
| Online Access: | https://hdl.handle.net/2445/120429 |
| Access Level: | Open access |
| Keyword: | Taurons Biologia marina Ecosistemes Sharks Marine biology Biotic communities |
| _version_ | 1878736196034625536 |
|---|---|
| author | Bird, Christopher S. |
| author2 | Veríssimo, Ana Magozzi, Sarah Abrantes, Kátya G. Aguilar, Àlex Al-Reasi, Hassan Barnett, Adam Bethea, Dana M. Biais, Gérard Borrell Thió, Assumpció Bouchoucha, Marc Boyle, Mariah Brooks, Edward J. Brunnschweiler, Juerg Bustamante, Paco Carlisle, Aaron Catarino, Diana Caut, Stephane Cherel, Yves Chouvelon, Tiphaine Churchill, Diana Ciancio, Javier Claes, Julien Colaço, Ana Courtney, Dean Cresson, Pierre Daly, Ryan de Necker, Leigh Endo, Tetsuya Figueiredo, Ivone Frisch, Ashley J. Hansen, Joan Holst Heithaus, Michael Hussey, Nigel E. Iitembu, Johannes Juanes, Francis Kinney, Michael J. Kiszka, Jeremy J. Klarian, Sebastian A. Kopp, Dorothée |
| author2_role | author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| author_browse | Abrantes, Kátya G. Aguilar, Àlex Al-Reasi, Hassan Barnett, Adam Bethea, Dana M. Biais, Gérard Bird, Christopher S. Borrell Thió, Assumpció Bouchoucha, Marc Boyle, Mariah Brooks, Edward J. Brunnschweiler, Juerg Bustamante, Paco Carlisle, Aaron Catarino, Diana Caut, Stephane Cherel, Yves Chouvelon, Tiphaine Churchill, Diana Ciancio, Javier Claes, Julien Colaço, Ana Courtney, Dean Cresson, Pierre Daly, Ryan Endo, Tetsuya Figueiredo, Ivone Frisch, Ashley J. Hansen, Joan Holst Heithaus, Michael Hussey, Nigel E. Iitembu, Johannes Juanes, Francis Kinney, Michael J. Kiszka, Jeremy J. Klarian, Sebastian A. Kopp, Dorothée Magozzi, Sarah Veríssimo, Ana de Necker, Leigh |
| author_facet | Bird, Christopher S. Veríssimo, Ana Magozzi, Sarah Abrantes, Kátya G. Aguilar, Àlex Al-Reasi, Hassan Barnett, Adam Bethea, Dana M. Biais, Gérard Borrell Thió, Assumpció Bouchoucha, Marc Boyle, Mariah Brooks, Edward J. Brunnschweiler, Juerg Bustamante, Paco Carlisle, Aaron Catarino, Diana Caut, Stephane Cherel, Yves Chouvelon, Tiphaine Churchill, Diana Ciancio, Javier Claes, Julien Colaço, Ana Courtney, Dean Cresson, Pierre Daly, Ryan de Necker, Leigh Endo, Tetsuya Figueiredo, Ivone Frisch, Ashley J. Hansen, Joan Holst Heithaus, Michael Hussey, Nigel E. Iitembu, Johannes Juanes, Francis Kinney, Michael J. Kiszka, Jeremy J. Klarian, Sebastian A. Kopp, Dorothée |
| author_role | author |
| collection | Dipòsit Digital de la UB |
| description | Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_8abe4e2829a093992f945708f31c1fb1 |
| institution | Universidad de Barcelona |
| instname_str | Universidad de Barcelona |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:diposit.ub.edu:2445/120429 |
| publishDate | 2018 |
| publishDateSort | 2018 |
| publisher | Nature Publishing Group |
| publisherStr | Nature Publishing Group |
| reponame_str | Dipòsit Digital de la UB |
| spelling | A global perspective on the trophic geography of sharks Bird, Christopher S. Veríssimo, Ana Magozzi, Sarah Abrantes, Kátya G. Aguilar, Àlex Al-Reasi, Hassan Barnett, Adam Bethea, Dana M. Biais, Gérard Borrell Thió, Assumpció Bouchoucha, Marc Boyle, Mariah Brooks, Edward J. Brunnschweiler, Juerg Bustamante, Paco Carlisle, Aaron Catarino, Diana Caut, Stephane Cherel, Yves Chouvelon, Tiphaine Churchill, Diana Ciancio, Javier Claes, Julien Colaço, Ana Courtney, Dean Cresson, Pierre Daly, Ryan de Necker, Leigh Endo, Tetsuya Figueiredo, Ivone Frisch, Ashley J. Hansen, Joan Holst Heithaus, Michael Hussey, Nigel E. Iitembu, Johannes Juanes, Francis Kinney, Michael J. Kiszka, Jeremy J. Klarian, Sebastian A. Kopp, Dorothée Taurons Biologia marina Ecosistemes Sharks Marine biology Biotic communities Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches. Nature Publishing Group https://hdl.handle.net/2445/120429 |
| spellingShingle | A global perspective on the trophic geography of sharks Bird, Christopher S. Taurons Biologia marina Ecosistemes Sharks Marine biology Biotic communities |
| status_str | acceptedVersion |
| title | A global perspective on the trophic geography of sharks |
| title_full | A global perspective on the trophic geography of sharks |
| title_fullStr | A global perspective on the trophic geography of sharks |
| title_full_unstemmed | A global perspective on the trophic geography of sharks |
| title_short | A global perspective on the trophic geography of sharks |
| title_sort | A global perspective on the trophic geography of sharks |
| topic | Taurons Biologia marina Ecosistemes Sharks Marine biology Biotic communities |
| topic_facet | Taurons Biologia marina Ecosistemes Sharks Marine biology Biotic communities |
| url | https://hdl.handle.net/2445/120429 |