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Data from: A global perspective on the trophic geography of sharks

Data from: A global perspective on the trophic geography of sharks
Data from: 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. 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.
Dryad Digital Repository
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Bird, Christopher, Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., 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, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E. M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew and Trueman, Clive (2018) Data from: A global perspective on the trophic geography of sharks. Dryad Digital Repository doi:10.5061/DRYAD.D1F0D [Dataset]

Record type: Dataset

Abstract

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.

Full text not available from this repository.

More information

Published date: 2018

Identifiers

Local EPrints ID: 436523
URI: http://eprints.soton.ac.uk/id/eprint/436523
PURE UUID: ec8821d4-4577-4e25-8d4a-0b8d2aec5996

Catalogue record

Date deposited: 11 Dec 2019 17:31
Last modified: 11 Dec 2019 17:31

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Contributors

Creator: Christopher Bird
Creator: Ana Veríssimo
Creator: Sarah Magozzi
Creator: Kátya G. Abrantes
Creator: Alex Aguilar
Creator: Hassan Al-Reasi
Creator: Adam Barnett
Creator: Dana M. Bethea
Creator: Gérard Biais
Creator: Asuncion Borrell
Creator: Marc Bouchoucha
Creator: Mariah Boyle
Creator: Edward J. Brooks
Creator: Juerg Brunnschweiler
Creator: Paco Bustamante
Creator: Aaron Carlisle
Creator: Diana Catarino
Creator: Stéphane Caut
Creator: Yves Cherel
Creator: Tiphaine Chouvelon
Creator: Diana Churchill
Creator: Javier Ciancio
Creator: Julien Claes
Creator: Ana Colaço
Creator: Dean L. Courtney
Creator: Pierre Cresson
Creator: Ryan Daly
Creator: Leigh de Necker
Creator: Tetsuya Endo
Creator: Ivone Figueiredo
Creator: Ashley J. Frisch
Creator: Joan Holst Hansen
Creator: Michael Heithaus
Creator: Nigel E. Hussey
Creator: Johannes Iitembu
Creator: Francis Juanes
Creator: Michael J. Kinney
Creator: Jeremy J. Kiszka
Creator: Sebastian A. Klarian
Creator: Dorothée Kopp
Creator: Robert Leaf
Creator: Yunkai Li
Creator: Anne Lorrain
Creator: Daniel J. Madigan
Creator: Aleksandra Maljković
Creator: Luis Malpica-Cruz
Creator: Philip Matich
Creator: Mark G. Meekan
Creator: Frédéric Ménard
Creator: Gui M. Menezes
Creator: Samantha E. M. Munroe
Creator: Michael C. Newman
Creator: Yannis P. Papastamatiou
Creator: Heidi Pethybridge
Creator: Jeffrey D. Plumlee
Creator: Carlos Polo-Silva
Creator: Katie Quaeck
Creator: Vincent Raoult
Creator: Jonathan Reum
Creator: Yassir Eden Torres-Rojas
Creator: David S. Shiffman
Creator: Oliver N. Shipley
Creator: Conrad W. Speed
Creator: Michelle D. Staudinger
Creator: Amy K. Teffer
Creator: Alexander Tilley
Creator: Maria Valls
Creator: Jeremy J. Vaudo
Creator: Tak-Cheung Wai
Creator: R. J. David Wells
Creator: Alex S. J. Wyatt
Creator: Andrew Yool
Creator: Clive Trueman

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