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1. Energetic connectivity of diverse elasmobranch populations - implications for ecological resilience.

Author

Shipley, Oliver, Matich, Philip, Hussey, Nigel, Brooks, Annabelle, Chapman, Demian, Frisk, Michael, Guttridge, Annie, Guttridge, Tristan, Howey, Lucy, Kattan, Sami, Madigan, Daniel, OShea, Owen, Polunin, Nicholas, Power, Michael, Smukall, Matthew, Schneider, Eric, Shea, Brendan, Winchester, Maggie, Brooks, Edward, Gallagher, Austin, and Talwar, Brendan

Subjects
ecosystem connectivity, ecosystem function, food-web, functional diversity, seascape, stable isotope analysis, Animals, Ecosystem, Coral Reefs, Biodiversity, Fishes, Elasmobranchii
Abstract

Understanding the factors shaping patterns of ecological resilience is critical for mitigating the loss of global biodiversity. Throughout aquatic environments, highly mobile predators are thought to serve as important vectors of energy between ecosystems thereby promoting stability and resilience. However, the role these predators play in connecting food webs and promoting energy flow remains poorly understood in most contexts. Using carbon and nitrogen isotopes, we quantified the use of several prey resource pools (small oceanic forage, large oceanics, coral reef, and seagrass) by 17 species of elasmobranch fishes (n = 351 individuals) in The Bahamas to determine their functional diversity and roles as ecosystem links. We observed remarkable functional diversity across species and identified four major groups responsible for connecting discrete regions of the seascape. Elasmobranchs were responsible for promoting energetic connectivity between neritic, oceanic and deep-sea ecosystems. Our findings illustrate how mobile predators promote ecosystem connectivity, underscoring their functional significance and role in supporting ecological resilience. More broadly, strong predator conservation efforts in developing island nations, such as The Bahamas, are likely to yield ecological benefits that enhance the resilience of marine ecosystems to combat imminent threats such as habitat degradation and climate change.

Published
2023

2. Diving into the vertical dimension of elasmobranch movement ecology.

Author

Andrzejaczek, Samantha, Lucas, Tim, Goodman, Maurice, Hussey, Nigel, Armstrong, Amelia, Carlisle, Aaron, Coffey, Daniel, Gleiss, Adrian, Huveneers, Charlie, Jacoby, David, Meekan, Mark, Mourier, Johann, Peel, Lauren, Abrantes, Kátya, Afonso, André, Ajemian, Matthew, Anderson, Brooke, Anderson, Scot, Araujo, Gonzalo, Armstrong, Asia, Bach, Pascal, Barnett, Adam, Bennett, Mike, Bezerra, Natalia, Bonfil, Ramon, Boustany, Andre, Bowlby, Heather, Branco, Ilka, Braun, Camrin, Brooks, Edward, Brown, Judith, Burke, Patrick, Butcher, Paul, Castleton, Michael, Chapple, Taylor, Chateau, Olivier, Clarke, Maurice, Coelho, Rui, Cortes, Enric, Couturier, Lydie, Cowley, Paul, Croll, Donald, Cuevas, Juan, Curtis, Tobey, Dagorn, Laurent, Dale, Jonathan, Daly, Ryan, Dewar, Heidi, Doherty, Philip, Domingo, Andrés, Dove, Alistair, Drew, Michael, Dudgeon, Christine, Duffy, Clinton, Elliott, Riley, Ellis, Jim, Erdmann, Mark, Farrugia, Thomas, Ferreira, Luciana, Ferretti, Francesco, Filmalter, John, Finucci, Brittany, Fischer, Chris, Fitzpatrick, Richard, Forget, Fabien, Forsberg, Kerstin, Francis, Malcolm, Franks, Bryan, Gallagher, Austin, Galvan-Magana, Felipe, García, Mirta, Gaston, Troy, Gillanders, Bronwyn, Gollock, Matthew, Green, Jonathan, Green, Sofia, Griffiths, Christopher, Hammerschlag, Neil, Hasan, Abdi, Hawkes, Lucy, Hazin, Fabio, Heard, Matthew, Hearn, Alex, Hedges, Kevin, Henderson, Suzanne, Holdsworth, John, Holland, Kim, Howey, Lucy, Hueter, Robert, Humphries, Nicholas, Hutchinson, Melanie, Jaine, Fabrice, Jorgensen, Salvador, Kanive, Paul, Labaja, Jessica, Lana, Fernanda, Lassauce, Hugo, Lipscombe, Rebecca, Llewellyn, Fiona, and Macena, Bruno

Abstract

Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements.

Published
2022

4. Reply to: Shark mortality cannot be assessed by fishery overlap alone

Author

Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, da Costa, Ivo, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, Acuña-Marrero, David, Afonso, André S., Afonso, Pedro, Anders, Darrell, Araujo, Gonzalo, Arauz, Randall, Bach, Pascal, Barnett, Adam, Bernal, Diego, Berumen, Michael L., Lion, Sandra Bessudo, Bezerra, Natalia P. A., Blaison, Antonin V., Block, Barbara A., Bond, Mark E., Bonfil, Ramon, Bradford, Russell W., Braun, Camrin D., Brooks, Edward J., Brooks, Annabelle, Brown, Judith, Bruce, Barry D., Byrne, Michael E., Campana, Steven E., Carlisle, Aaron B., Chapman, Demian D., Chapple, Taylor K., Chisholm, John, Clarke, Christopher R., Clua, Eric G., Cochran, Jesse E. M., Crochelet, Estelle C., Dagorn, Laurent, Daly, Ryan, Cortés, Daniel Devia, Doyle, Thomas K., Drew, Michael, Duffy, Clinton A. J., Erikson, Thor, Espinoza, Eduardo, Ferreira, Luciana C., Ferretti, Francesco, Filmalter, John D., Fischer, G. Chris, Fitzpatrick, Richard, Fontes, Jorge, Forget, Fabien, Fowler, Mark, Francis, Malcolm P., Gallagher, Austin J., Gennari, Enrico, Goldsworthy, Simon D., Gollock, Matthew J., Green, Jonathan R., Gustafson, Johan A., Guttridge, Tristan L., Guzman, Hector M., Hammerschlag, Neil, Harman, Luke, Hazin, Fábio H. V., Heard, Matthew, Hearn, Alex R., Holdsworth, John C., Holmes, Bonnie J., Howey, Lucy A., Hoyos, Mauricio, Hueter, Robert E., Hussey, Nigel E., Huveneers, Charlie, Irion, Dylan T., Jacoby, David M. P., Jewell, Oliver J. D., Johnson, Ryan, Jordan, Lance K. B., Joyce, Warren, Keating Daly, Clare A., Ketchum, James T., Klimley, A. Peter, Kock, Alison A., Koen, Pieter, Ladino, Felipe, Lana, Fernanda O., Lea, James S. E., Llewellyn, Fiona, Lyon, Warrick S., MacDonnell, Anna, Macena, Bruno C. L., Marshall, Heather, McAllister, Jaime D., Meÿer, Michael A., Morris, John J., Nelson, Emily R., Papastamatiou, Yannis P., Peñaherrera-Palma, Cesar, Pierce, Simon J., Poisson, Francois, Quintero, Lina Maria, Richardson, Andrew J., Rogers, Paul J., Rohner, Christoph A., Rowat, David R. L., Samoilys, Melita, Semmens, Jayson M., Sheaves, Marcus, Shillinger, George, Shivji, Mahmood, Singh, Sarika, Skomal, Gregory B., Smale, Malcolm J., Snyders, Laurenne B., Soler, German, Soria, Marc, Stehfest, Kilian M., Thorrold, Simon R., Tolotti, Mariana T., Towner, Alison, Travassos, Paulo, Tyminski, John P., Vandeperre, Frederic, Vaudo, Jeremy J., Watanabe, Yuuki Y., Weber, Sam B., Wetherbee, Bradley M., White, Timothy D., Williams, Sean, Zárate, Patricia M., Harcourt, Robert, Hays, Graeme C., Meekan, Mark G., Thums, Michele, Irigoien, Xabier, Eguiluz, Victor M., Duarte, Carlos M., Sousa, Lara L., Simpson, Samantha J., Southall, Emily J., and Sims, David W.

Published
2021
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5. Reply to: Caution over the use of ecological big data for conservation

Author

Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, da Costa, Ivo, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, Acuña-Marrero, David, Afonso, André S., Afonso, Pedro, Anders, Darrell, Araujo, Gonzalo, Arauz, Randall, Bach, Pascal, Barnett, Adam, Bernal, Diego, Berumen, Michael L., Lion, Sandra Bessudo, Bezerra, Natalia P. A., Blaison, Antonin V., Block, Barbara A., Bond, Mark E., Bonfil, Ramon, Braun, Camrin D., Brooks, Edward J., Brooks, Annabelle, Brown, Judith, Byrne, Michael E., Campana, Steven E., Carlisle, Aaron B., Chapman, Demian D., Chapple, Taylor K., Chisholm, John, Clarke, Christopher R., Clua, Eric G., Cochran, Jesse E. M., Crochelet, Estelle C., Dagorn, Laurent, Daly, Ryan, Cortés, Daniel Devia, Doyle, Thomas K., Drew, Michael, Duffy, Clinton A. J., Erikson, Thor, Espinoza, Eduardo, Ferreira, Luciana C., Ferretti, Francesco, Filmalter, John D., Fischer, G. Chris, Fitzpatrick, Richard, Fontes, Jorge, Forget, Fabien, Fowler, Mark, Francis, Malcolm P., Gallagher, Austin J., Gennari, Enrico, Goldsworthy, Simon D., Gollock, Matthew J., Green, Jonathan R., Gustafson, Johan A., Guttridge, Tristan L., Guzman, Hector M., Hammerschlag, Neil, Harman, Luke, Hazin, Fábio H. V., Heard, Matthew, Hearn, Alex R., Holdsworth, John C., Holmes, Bonnie J., Howey, Lucy A., Hoyos, Mauricio, Hueter, Robert E., Hussey, Nigel E., Huveneers, Charlie, Irion, Dylan T., Jacoby, David M. P., Jewell, Oliver J. D., Johnson, Ryan, Jordan, Lance K. B., Joyce, Warren, Keating Daly, Clare A., Ketchum, James T., Klimley, A. Peter, Kock, Alison A., Koen, Pieter, Ladino, Felipe, Lana, Fernanda O., Lea, James S. E., Llewellyn, Fiona, Lyon, Warrick S., MacDonnell, Anna, Macena, Bruno C. L., Marshall, Heather, McAllister, Jaime D., Meÿer, Michael A., Morris, John J., Nelson, Emily R., Papastamatiou, Yannis P., Peñaherrera-Palma, Cesar, Pierce, Simon J., Poisson, Francois, Quintero, Lina Maria, Richardson, Andrew J., Rogers, Paul J., Rohner, Christoph A., Rowat, David R. L., Samoilys, Melita, Semmens, Jayson M., Sheaves, Marcus, Shillinger, George, Shivji, Mahmood, Singh, Sarika, Skomal, Gregory B., Smale, Malcolm J., Snyders, Laurenne B., Soler, German, Soria, Marc, Stehfest, Kilian M., Thorrold, Simon R., Tolotti, Mariana T., Towner, Alison, Travassos, Paulo, Tyminski, John P., Vandeperre, Frederic, Vaudo, Jeremy J., Watanabe, Yuuki Y., Weber, Sam B., Wetherbee, Bradley M., White, Timothy D., Williams, Sean, Zárate, Patricia M., Harcourt, Robert, Hays, Graeme C., Meekan, Mark G., Thums, Michele, Irigoien, Xabier, Eguiluz, Victor M., Duarte, Carlos M., Sousa, Lara L., Simpson, Samantha J., Southall, Emily J., and Sims, David W.

Published
2021
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6. Insights into the Relative Abundance, Life History, and Ecology of Oceanic Sharks in the Eastern Bahamas

Author

Talwar, Brendan S., primary, Brooks, Edward J., additional, Abercrombie, Debra L., additional, Anderson, Brenda, additional, Bond, Mark E., additional, Brooks, Annabelle M. L., additional, Chapman, Demian D., additional, Clementi, Gina M., additional, Fields, Candace Y. A., additional, Gelsleichter, Jim, additional, Grubbs, R. Dean, additional, Howey, Lucy A., additional, Jordan, Lance K. B., additional, Kiszka, Jeremy J., additional, Knotek, Ryan J., additional, Papastamatiou, Yannis P., additional, Peterson, Cheston T., additional, Schneider, Eric V. C., additional, Shipley, Oliver N., additional, Williams, Sean, additional, Winchester, Maggie M., additional, and Heithaus, Michael R., additional

Published
2023
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7. Insights into the Relative Abundance, Life History, and Ecology of Oceanic Sharks in the Eastern Bahamas.

Author

Talwar, Brendan S., Brooks, Edward J., Abercrombie, Debra L., Anderson, Brenda, Bond, Mark E., Brooks, Annabelle M. L., Chapman, Demian D., Clementi, Gina M., Fields, Candace Y. A., Gelsleichter, Jim, Grubbs, R. Dean, Howey, Lucy A., Jordan, Lance K. B., Kiszka, Jeremy J., Knotek, Ryan J., Papastamatiou, Yannis P., Peterson, Cheston T., Schneider, Eric V. C., Shipley, Oliver N., and Williams, Sean

Abstract

Fisheries-independent data on the diversity, relative abundance, and demographic structure of poorly studied, threatened oceanic sharks are absent from much of the western North Atlantic Ocean, where multiple oceanic shark species have experienced significant population declines. Resource-limited management approaches require the identification of critical habitats or aggregation sites worthy of protection and enforcement. Data were collected on oceanic sharks using pelagic longline surveys, targeted baiting, and opportunistic encounters in oligotrophic open-ocean habitats of north-eastern Exuma Sound (NES), The Bahamas. The oceanic epipelagic shark community was also characterized using targeted baiting off Columbus Point, Cat Island (CI), a seamount north of San Salvador (SSSM), and the northwestern tip of Mayaguana. Pelagic longline surveys suggested that the relative abundance of sharks at NES was low (shark catch-per-unit-effort: 0.0007 sharks hook−1 h−1; 2.3 sharks per 1000 hooks). Silky sharks Carcharhinus falciformis, particularly juveniles (134 ± 39 cm stretched total length; mean ± SD STL), were the most common. Targeted baiting suggested oceanic whitetip sharks C. longimanus were abundant at CI, where large adults (245 ± 23 cm STL), most of which were females (83.8%, n = 98 of 117) that were gravid (65.7%; n = 46 of 70 assessed for pregnancy), dominated the aggregation. Many (20.5–26.5%, n = 24–31 of 117 depending on assumptions regarding tag loss) were recaptured or resighted at CI for up to five years. Silky sharks dominated catches at SSSM. Oceanic sharks, particularly adults, were sometimes caught or observed alongside short-finned pilot whales Globicephala macrorhynchus or tunas. Although The Bahamas offers threatened oceanic sharks refuge from fishing across its entire jurisdiction, these data suggest that some fixed features, including sites such as CI and potentially SSSM, are important aggregation sites with high regional conservation value and should be prioritized by fisheries managers and enforcement officials. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Supplementary Information from Energetic connectivity of diverse elasmobranch populations – implications for ecological resilience

Author

Shipley, Oliver N., Matich, Philip, Hussey, Nigel E., Brooks, Annabelle M. L., Chapman, Demian, Frisk, Michael G., Guttridge, Annie E., Guttridge, Tristan L., Howey, Lucy A., Kattan, Sami, Madigan, Daniel J., O'Shea, Owen, Polunin, Nicholas V., Power, Michael, Smukall, Matthew J., Schneider, Eric V. C., Shea, Brendan D., Talwar, Brendan S., Winchester, Maggie, Brooks, Edward J., and Gallagher, Austin J.

Abstract

Additional information on sample collection and statistical analyses

Published
2023
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12. Merging technologies and supervised classification methods to quantify capture behavior on hook-and-line

Author

Knotek, Ryan J., primary, Brooks, Edward J., additional, Howey, Lucy A., additional, Gelsleichter, James G., additional, Talwar, Brendan S., additional, Winchester, Maggie M., additional, Jordan, Lance K.B., additional, Williams, Sean, additional, Bond, Mark E., additional, Brooks, Annabelle M.L., additional, Shipley, Oliver N., additional, Bacon, Trevor, additional, Kneebone, Jeff R., additional, and Mandelman, John W., additional

Published
2022
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16. Global spatial risk assessment of sharks under the footprint of fisheries

Author

Queiroz, Nuno, primary, Humphries, Nicolas E., additional, Couto, Ana, additional, Vedor, Marisa, additional, da Costa, Ivo, additional, Sequeira, Ana M. M., additional, Mucientes, Gonzalo, additional, Santos, António M., additional, Abascal, Francisco J., additional, Abercrombie, Debra L., additional, Abrantes, Katya, additional, Acuña-Marrero, David, additional, Afonso, André S., additional, Afonso, Pedro, additional, Anders, Darrell, additional, Araujo, Gonzalo, additional, Arauz, Randall, additional, Bach, Pascal, additional, Barnett, Adam, additional, Bernal, Diego, additional, Berumen, Michael L., additional, Bessudo Lion, Sandra, additional, Bezerra, Natalia P. A., additional, Blaison, Antonin V., additional, Block, Barbara A., additional, Bond, Mark E., additional, Bonfil, Ramón, additional, Bradford, Russell W., additional, Braun, Camrin D., additional, Brooks, Edward J., additional, Brooks, Annabelle, additional, Brown, Judith, additional, Bruce, Barry D., additional, Byrne, Michael E., additional, Campana, Steven E., additional, Carlisle, Aaron B., additional, Chapman, Demian D., additional, Chapple, Taylor K., additional, Chisholm, John, additional, Clarke, Christopher R., additional, Clua, Eric G., additional, Cochran, Jesse E. M., additional, Crochelet, Estelle C., additional, Dagorn, Laurent, additional, Daly, Ryan, additional, Cortés, Daniel Devia, additional, Doyle, Thomas K., additional, Drew, Michael, additional, Duffy, Clinton A. J., additional, Erikson, Thor, additional, Espinoza, Eduardo, additional, Ferreira, Luciana C., additional, Ferretti, Francesco, additional, Filmalter, John D., additional, Fischer, G. Chris, additional, Fitzpatrick, Richard, additional, Fontes, Jorge, additional, Forget, Fabien, additional, Fowler, Mark, additional, Francis, Malcolm P., additional, Gallagher, Austin J., additional, Gennari, Enrico, additional, Goldsworthy, Simon D., additional, Gollock, Matthew J., additional, Green, Jonathan R., additional, Gustafson, Johan A., additional, Guttridge, Tristan L., additional, Guzman, Hector M., additional, Hammerschlag, Neil, additional, Harman, Luke, additional, Hazin, Fábio H. V., additional, Heard, Matthew, additional, Hearn, Alex R., additional, Holdsworth, John C., additional, Holmes, Bonnie J., additional, Howey, Lucy A., additional, Hoyos, Mauricio, additional, Hueter, Robert E., additional, Hussey, Nigel E., additional, Huveneers, Charlie, additional, Irion, Dylan T., additional, Jacoby, David M. P., additional, Jewell, Oliver J. D., additional, Johnson, Ryan, additional, Jordan, Lance K. B., additional, Jorgensen, Salvador J., additional, Joyce, Warren, additional, Keating Daly, Clare A., additional, Ketchum, James T., additional, Klimley, A. Peter, additional, Kock, Alison A., additional, Koen, Pieter, additional, Ladino, Felipe, additional, Lana, Fernanda O., additional, Lea, James S. E., additional, Llewellyn, Fiona, additional, Lyon, Warrick S., additional, MacDonnell, Anna, additional, Macena, Bruno C. L., additional, Marshall, Heather, additional, McAllister, Jaime D., additional, McAuley, Rory, additional, Meÿer, Michael A., additional, Morris, John J., additional, Nelson, Emily R., additional, Papastamatiou, Yannis P., additional, Patterson, Toby A., additional, Peñaherrera-Palma, Cesar, additional, Pepperell, Julian G., additional, Pierce, Simon J., additional, Poisson, Francois, additional, Quintero, Lina Maria, additional, Richardson, Andrew J., additional, Rogers, Paul J., additional, Rohner, Christoph A., additional, Rowat, David R. L., additional, Samoilys, Melita, additional, Semmens, Jayson M., additional, Sheaves, Marcus, additional, Shillinger, George, additional, Shivji, Mahmood, additional, Singh, Sarika, additional, Skomal, Gregory B., additional, Smale, Malcolm J., additional, Snyders, Laurenne B., additional, Soler, German, additional, Soria, Marc, additional, Stehfest, Kilian M., additional, Stevens, John D., additional, Thorrold, Simon R., additional, Tolotti, Mariana T., additional, Towner, Alison, additional, Travassos, Paulo, additional, Tyminski, John P., additional, Vandeperre, Frederic, additional, Vaudo, Jeremy J., additional, Watanabe, Yuuki Y., additional, Weber, Sam B., additional, Wetherbee, Bradley M., additional, White, Timothy D., additional, Williams, Sean, additional, Zárate, Patricia M., additional, Harcourt, Robert, additional, Hays, Graeme C., additional, Meekan, Mark G., additional, Thums, Michele, additional, Irigoien, Xabier, additional, Eguiluz, Victor M., additional, Duarte, Carlos M., additional, Sousa, Lara L., additional, Simpson, Samantha J., additional, Southall, Emily J., additional, and Sims, David W., additional

Published
2019
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22. Philopatry and Regional Connectivity of the Great Hammerhead Shark, Sphyrna mokarran in the U.S. and Bahamas

Author

Guttridge, Tristan L., primary, Van Zinnicq Bergmann, Maurits P. M., additional, Bolte, Chris, additional, Howey, Lucy A., additional, Finger, Jean S., additional, Kessel, Steven T., additional, Brooks, Jill L., additional, Winram, William, additional, Bond, Mark E., additional, Jordan, Lance K. B., additional, Cashman, Rachael C., additional, Tolentino, Emily R., additional, Grubbs, R. Dean, additional, and Gruber, Samuel H., additional

Published
2017
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25. Diving into the vertical dimension of elasmobranch movement ecology

Author

Samantha Andrzejaczek, Tim C.D. Lucas, Maurice C. Goodman, Nigel E. Hussey, Amelia J. Armstrong, Aaron Carlisle, Daniel M. Coffey, Adrian C. Gleiss, Charlie Huveneers, David M. P. Jacoby, Mark G. Meekan, Johann Mourier, Lauren R. Peel, Kátya Abrantes, André S. Afonso, Matthew J. Ajemian, Brooke N. Anderson, Scot D. Anderson, Gonzalo Araujo, Asia O. Armstrong, Pascal Bach, Adam Barnett, Mike B. Bennett, Natalia A. Bezerra, Ramon Bonfil, Andre M. Boustany, Heather D. Bowlby, Ilka Branco, Camrin D. Braun, Edward J. Brooks, Judith Brown, Patrick J. Burke, Paul Butcher, Michael Castleton, Taylor K. Chapple, Olivier Chateau, Maurice Clarke, Rui Coelho, Enric Cortes, Lydie I. E. Couturier, Paul D. Cowley, Donald A. Croll, Juan M. Cuevas, Tobey H. Curtis, Laurent Dagorn, Jonathan J. Dale, Ryan Daly, Heidi Dewar, Philip D. Doherty, Andrés Domingo, Alistair D. M. Dove, Michael Drew, Christine L. Dudgeon, Clinton A. J. Duffy, Riley G. Elliott, Jim R. Ellis, Mark V. Erdmann, Thomas J. Farrugia, Luciana C. Ferreira, Francesco Ferretti, John D. Filmalter, Brittany Finucci, Chris Fischer, Richard Fitzpatrick, Fabien Forget, Kerstin Forsberg, Malcolm P. Francis, Bryan R. Franks, Austin J. Gallagher, Felipe Galvan-Magana, Mirta L. García, Troy F. Gaston, Bronwyn M. Gillanders, Matthew J. Gollock, Jonathan R. Green, Sofia Green, Christopher A. Griffiths, Neil Hammerschlag, Abdi Hasan, Lucy A. Hawkes, Fabio Hazin, Matthew Heard, Alex Hearn, Kevin J. Hedges, Suzanne M. Henderson, John Holdsworth, Kim N. Holland, Lucy A. Howey, Robert E. Hueter, Nicholas E. Humphries, Melanie Hutchinson, Fabrice R. A. Jaine, Salvador J. Jorgensen, Paul E. Kanive, Jessica Labaja, Fernanda O. Lana, Hugo Lassauce, Rebecca S. Lipscombe, Fiona Llewellyn, Bruno C. L. Macena, Ronald Mambrasar, Jaime D. McAllister, Sophy R. McCully Phillips, Frazer McGregor, Matthew N. McMillan, Lianne M. McNaughton, Sibele A. Mendonça, Carl G. Meyer, Megan Meyers, John A. Mohan, John C. Montgomery, Gonzalo Mucientes, Michael K. Musyl, Nicole Nasby-Lucas, Lisa J. Natanson, John B. O’Sullivan, Paulo Oliveira, Yannis P. Papastamtiou, Toby A. Patterson, Simon J. Pierce, Nuno Queiroz, Craig A. Radford, Andy J. Richardson, Anthony J. Richardson, David Righton, Christoph A. Rohner, Mark A. Royer, Ryan A. Saunders, Matthias Schaber, Robert J. Schallert, Michael C. Scholl, Andrew C. Seitz, Jayson M. Semmens, Edy Setyawan, Brendan D. Shea, Rafid A. Shidqi, George L. Shillinger, Oliver N. Shipley, Mahmood S. Shivji, Abraham B. Sianipar, Joana F. Silva, David W. Sims, Gregory B. Skomal, Lara L. Sousa, Emily J. Southall, Julia L. Y. Spaet, Kilian M. Stehfest, Guy Stevens, Joshua D. Stewart, James A. Sulikowski, Ismail Syakurachman, Simon R. Thorrold, Michele Thums, David Tickler, Mariana T. Tolloti, Kathy A. Townsend, Paulo Travassos, John P. Tyminski, Jeremy J. Vaudo, Drausio Veras, Laurent Wantiez, Sam B. Weber, R.J. David Wells, Kevin C. Weng, Bradley M. Wetherbee, Jane E. Williamson, Matthew J. Witt, Serena Wright, Kelly Zilliacus, Barbara A. Block, David J. Curnick, Andrzejaczek, Samantha [0000-0002-9929-7312], Lucas, Tim CD [0000-0003-4694-8107], Goodman, Maurice C [0000-0002-6874-2313], Hussey, Nigel E [0000-0002-9050-6077], Armstrong, Amelia J [0000-0001-8103-4314], Carlisle, Aaron [0000-0003-0796-6564], Coffey, Daniel M [0000-0001-5983-0146], Huveneers, Charlie [0000-0001-8937-1358], Jacoby, David MP [0000-0003-2729-3811], Meekan, Mark G [0000-0002-3067-9427], Mourier, Johann [0000-0001-9019-1717], Peel, Lauren R [0000-0001-6960-5663], Abrantes, Kátya [0000-0001-7430-8428], Afonso, André S [0000-0001-9129-278X], Ajemian, Matthew J [0000-0002-2725-4030], Anderson, Brooke N [0000-0003-4299-3496], Araujo, Gonzalo [0000-0002-4708-3638], Armstrong, Asia O [0000-0002-9307-0598], Barnett, Adam [0000-0001-7430-8428], Bennett, Mike B [0000-0001-8051-0040], Bezerra, Natalia A [0000-0002-4203-8408], Bonfil, Ramon [0000-0002-5753-464X], Boustany, Andre M [0000-0001-5501-7190], Bowlby, Heather D [0000-0002-2532-3725], Branco, Ilka [0000-0001-8136-2596], Braun, Camrin D [0000-0002-9317-9489], Brooks, Edward J [0000-0001-5206-7133], Burke, Patrick J [0000-0002-7217-0215], Butcher, Paul [0000-0001-7338-6037], Castleton, Michael [0000-0001-9639-6967], Chapple, Taylor K [0000-0002-0357-0223], Chateau, Olivier [0000-0003-1153-6284], Coelho, Rui [0000-0003-3813-5157], Cortes, Enric [0000-0001-6001-2482], Couturier, Lydie IE [0000-0002-3885-3397], Cuevas, Juan M [0000-0003-0086-5963], Curtis, Tobey H [0000-0003-0164-7335], Dale, Jonathan J [0000-0001-8565-3841], Daly, Ryan [0000-0002-4409-6951], Dewar, Heidi [0000-0002-8202-1387], Doherty, Philip D [0000-0001-7561-3731], Domingo, Andrés [0000-0002-1793-7663], Dove, Alistair DM [0000-0003-3239-4772], Drew, Michael [0000-0002-5109-7792], Dudgeon, Christine L [0000-0001-5059-7886], Duffy, Clinton AJ [0000-0002-3352-1609], Elliott, Riley G [0000-0003-0234-5953], Erdmann, Mark V [0000-0002-3644-8347], Farrugia, Thomas J [0000-0001-9052-8826], Ferreira, Luciana C [0000-0001-6755-2799], Ferretti, Francesco [0000-0001-9510-3552], Finucci, Brittany [0000-0003-1315-2946], Forget, Fabien [0000-0002-4845-4277], Forsberg, Kerstin [0000-0002-1233-9381], Franks, Bryan R [0000-0003-4016-9225], Gallagher, Austin J [0000-0003-1515-3440], García, Mirta L [0000-0003-0143-7397], Gaston, Troy F [0000-0003-0049-0831], Gillanders, Bronwyn M [0000-0002-7680-2240], Green, Jonathan R [0000-0001-7671-6716], Green, Sofia [0000-0002-2878-5984], Griffiths, Christopher A [0000-0001-7203-0426], Hammerschlag, Neil [0000-0001-9002-9082], Hawkes, Lucy A [0000-0002-6696-1862], Hearn, Alex [0000-0002-4986-098X], Hedges, Kevin J [0000-0002-2219-2360], Holland, Kim N [0000-0003-4663-7026], Howey, Lucy A [0000-0001-7381-4871], Humphries, Nicholas E [0000-0003-3741-1594], Hutchinson, Melanie [0000-0001-7042-0658], Jaine, Fabrice RA [0000-0002-9304-5034], Jorgensen, Salvador J [0000-0002-4331-1648], Kanive, Paul E [0000-0003-2430-6920], Labaja, Jessica [0000-0001-6916-7050], Lana, Fernanda O [0000-0001-7235-069X], Lassauce, Hugo [0000-0001-9636-6522], Lipscombe, Rebecca S [0000-0001-9602-643X], Llewellyn, Fiona [0000-0003-4309-8311], Macena, Bruno CL [0000-0001-5010-8560], McCully Phillips, Sophy R [0000-0003-3110-5916], McGregor, Frazer [0000-0002-7441-4404], McMillan, Matthew N [0000-0001-6348-184X], Mendonça, Sibele A [0000-0002-1981-5950], Mohan, John A [0000-0002-2758-163X], Mucientes, Gonzalo [0000-0001-6650-3020], Musyl, Michael K [0000-0003-4719-9259], Nasby-Lucas, Nicole [0000-0001-8355-9392], Natanson, Lisa J [0000-0002-2903-6037], O'Sullivan, John B [0000-0002-1689-2141], Oliveira, Paulo [0000-0001-7697-2111], Papastamtiou, Yannis P [0000-0002-6091-6841], Patterson, Toby A [0000-0002-7150-9205], Pierce, Simon J [0000-0002-9375-5175], Queiroz, Nuno [0000-0002-3860-7356], Radford, Craig A [0000-0001-7949-9497], Richardson, Andy J [0000-0003-2598-5080], Richardson, Anthony J [0000-0002-9289-7366], Righton, David [0000-0001-8643-3672], Rohner, Christoph A [0000-0001-8760-8972], Royer, Mark A [0000-0002-6938-7536], Schaber, Matthias [0000-0003-1032-4626], Schallert, Robert J [0000-0002-3584-2668], Scholl, Michael C [0000-0002-6014-1759], Semmens, Jayson M [0000-0003-1742-6692], Setyawan, Edy [0000-0001-6629-5997], Shea, Brendan D [0000-0001-7771-0586], Shillinger, George L [0000-0001-5168-4551], Shipley, Oliver N [0000-0001-5163-3471], Sianipar, Abraham B [0000-0003-4049-3893], Silva, Joana F [0000-0002-2897-1410], Sims, David W [0000-0002-0916-7363], Sousa, Lara L [0000-0002-4392-3572], Southall, Emily J [0000-0001-7246-278X], Spaet, Julia LY [0000-0001-8703-1472], Stevens, Guy [0000-0002-2056-9830], Sulikowski, James A [0000-0002-3646-5200], Thums, Michele [0000-0002-8669-8440], Tickler, David [0000-0001-7722-0771], Tolloti, Mariana T [0000-0001-6895-2479], Townsend, Kathy A [0000-0002-2581-2158], Travassos, Paulo [0000-0001-8667-5292], Tyminski, John P [0000-0001-8251-7385], Vaudo, Jeremy J [0000-0002-6826-3822], Veras, Drausio [0000-0001-5627-6848], Wantiez, Laurent [0000-0001-5024-2057], Weber, Sam B [0000-0003-1447-4082], Wells, RJ David [0000-0002-1306-0614], Weng, Kevin C [0000-0002-7069-7152], Wetherbee, Bradley M [0000-0002-3753-8950], Williamson, Jane E [0000-0003-3627-4508], Witt, Matthew J [0000-0002-9498-5378], Zilliacus, Kelly [0000-0001-9166-5611], Block, Barbara A [0000-0001-5181-3616], Curnick, David J [0000-0002-3093-1282], Apollo - University of Cambridge Repository, Zoological Society of London - ZSL (UNITED KINGDOM), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), and Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)

Subjects
Multidisciplinary, [SDV]Life Sciences [q-bio], Violacea Bonaparte, 3103 Ecology, Pelagic stingray, Scalloped hammerhead shark, 41 Environmental Sciences, Western North Pacific, Reproductive-biology, Habitat Use, Carcharhinus-falciformis, Galeocerdo-cuvier, Sexual segregation, Sphyna-lewini, 31 Biological Sciences
Abstract

20 pages, 3 tables, 5 figures.-- Samantha Andrzejaczek ... et al.-- Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC), Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements, Data analysis was funded by the Bertarelli Foundation through the Marine Science program through grants to D.J.C., B.A.B., and S.A. D.J.C. is also funded through Research England, UK. S.A. and B.A.B. thank the Moore Foundation and the Packard Foundation. F.G.-M. thanks the Instituto Politecnico Nacional for fellowships (COFAA, EDI). S.B.W. thanks funding from the Darwin Initiative (DPLUS046). A.D.M.D. acknowledges funding from the Research and Conservation Budget at Georgia Aquarium, including philanthropic gifts from several anonymous donors. K.F. acknowledges funding from the Rolex Awards for Enterprise and the Whitley Fund for Nature

Published
2022

26. Energetic connectivity of diverse elasmobranch populations - implications for ecological resilience.

Author

Shipley ON, Matich P, Hussey NE, Brooks AML, Chapman D, Frisk MG, Guttridge AE, Guttridge TL, Howey LA, Kattan S, Madigan DJ, O'Shea O, Polunin NV, Power M, Smukall MJ, Schneider EVC, Shea BD, Talwar BS, Winchester M, Brooks EJ, and Gallagher AJ

Subjects
Animals, Coral Reefs, Biodiversity, Fishes, Ecosystem, Elasmobranchii
Abstract

Understanding the factors shaping patterns of ecological resilience is critical for mitigating the loss of global biodiversity. Throughout aquatic environments, highly mobile predators are thought to serve as important vectors of energy between ecosystems thereby promoting stability and resilience. However, the role these predators play in connecting food webs and promoting energy flow remains poorly understood in most contexts. Using carbon and nitrogen isotopes, we quantified the use of several prey resource pools (small oceanic forage, large oceanics, coral reef, and seagrass) by 17 species of elasmobranch fishes ( n = 351 individuals) in The Bahamas to determine their functional diversity and roles as ecosystem links. We observed remarkable functional diversity across species and identified four major groups responsible for connecting discrete regions of the seascape. Elasmobranchs were responsible for promoting energetic connectivity between neritic, oceanic and deep-sea ecosystems. Our findings illustrate how mobile predators promote ecosystem connectivity, underscoring their functional significance and role in supporting ecological resilience. More broadly, strong predator conservation efforts in developing island nations, such as The Bahamas, are likely to yield ecological benefits that enhance the resilience of marine ecosystems to combat imminent threats such as habitat degradation and climate change.

Published
2023
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