@article{10508/11370,
year = {2018},
month = {2},
url = {http://hdl.handle.net/10508/11370},
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},
keywords = {sharks},
keywords = {trophic geography},
keywords = {predators},
keywords = {food web},
keywords = {stable isotopes},
title = {A global perspective on the trophic geography of sharks},
doi = {10.1038/s41559-017-0432-z},
journal = {Nature Ecology & Evolution},
volume = {2(2)},
author = {Bird, C.S. (Christopher S.) and Veríssimo, A. (Ana) and Magozzi, S. (Sarah) and Abrantes, K.G. (Kátya G.) and Aguilar, A. (Alex) and Al-Reasi, H. (Hassan) and Barnett, A. (Adam) and Bethea, D.M. (Dana M.) and Biais, G. (Gérard) and Borrell, A. (Asunción) and Bouchoucha, M. (Marc) and Boyle, M. (Mariah) and Brooks, E.J. (Edward J.) and Brunnschweiler, J. (Juerg) and Bustamante, P. (Paco) and Carlisle, A. (Aaron) and Catarino, D. (Diana) and Caut S., (Stéphane) and Cherel, Y. (Yves) and Chouvelon, T. (Tiphaine) and Churchill, D. (Diana) and Ciancio, J. (Javier) and Claes, J. (Julien) and Colaço, A. (Ana) and Courtney, D.L. (Dean L.) and Cresson, P. (Pierre) and Daly, R. (Ryan) and De-Necker, L. (Leigh) and Endo, T. (Tetsuya) and Figueiredo, I. (Ivone) and Frisch, A.J. (Ashley J.) and Hansen, J.H. (Joan Holst) and Heithaus, M. (Michael) and Hussey, N.E. (Nigel E.) and Iitembu, J. (Johannes) and Juanes, F. (Francis) and Kinney, M.J. (Michael J.) and Kiszka, J.J. (Jeremy J.) and Klarian, S.A. (Sebastian A.) and Kopp, D. (Dorothée) and Leaf, R. (Robert) and Li, Y. (Yunkai) and Lorrain, A. (Anne) and Madigan, D.J. (Daniel J.) and Maljković, A. (Aleksandra) and Malpica-Cruz, L. (Luis) and Matich, P. (Philip) and Meekan, M.G. (Mark G.) and Ménard, F. (Frédéric) and Menezes, G.M. (Gui M.) and Munroe, A.E.M. (Samantha E. M.) and Newman, M.C. (Michael C.) and Papastamatiou, Y.P. (Yannis P.) and Pethybridge, H. (Heidi) and Plumlee, (Jeffrey D.) and Polo-Silva, C. (Carlos) and Quaeck-Davies, K. (Katie) and Raoult, V. (Vincent) and Reum, J. (Jonathan) and Torres-Rojas, .E. (Yassir Eden) and Shiffman, D.S. (David S.) and Shipley, O.N. (Oliver N.) and Speed, C.W. (Conrad W.) and Staudinger, M.D. (Michelle D) and Teffer, A.K. (Amy K.) and Tilley, A. (Alexander) and Valls-Mir, M. (María) and Vaudo, (Jeremy J.) and Wai T.C., (Tak-Cheung) and Wells, R.J.D. (R. J. David) and Wyatt, A.S.J. (Alex S. J.) and Yool, A. (Andrew) and Trueman, C.N. (Clive N.)},
}