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1. Priorities for Mediterranean marine turtle conservation and management in the face of climate change

Author

Mazaris, Antonios D., Dimitriadis, Charalampos, Papazekou, Maria, Schofield, Gail, Doxa, Aggeliki, Chatzimentor, Anastasia, Turkozan, Oguz, Katsanevakis, Stelios, Lioliou, Aphrodite, Abalo-Morla, Sara, Aksissou, Mustapha, Arcangeli, Antonella, Attard, Vincent, El Hili, Hedia Attia, Atzori, Fabrizio, Belda, Eduardo J., Ben Nakhla, Lobna, Berbash, Ali A., Bjorndal, Karen A., Broderick, Annette C., Camiñas, Juan A., Candan, Onur, Cardona, Luis, Cetkovic, Ilija, Dakik, Nabigha, de Lucia, Giuseppe Andrea, Dimitrakopoulos, Panayiotis G., Diryaq, Salih, Favilli, Costanza, Fortuna, Caterina Maria, Fuller, Wayne J., Gallon, Susan, Hamza, Abdulmaula, Jribi, Imed, Ben Ismail, Manel, Kamarianakis, Yiannis, Kaska, Yakup, Korro, Kastriot, Koutsoubas, Drosos, Lauriano, Giancarlo, Lazar, Bojan, March, David, Marco, Adolfo, Minotou, Charikleia, Monsinjon, Jonathan R., Naguib, Nahla M., Palialexis, Andreas, Piroli, Vilma, Sami, Karaa, Sönmez, Bektaş, Sourbès, Laurent, Sözbilen, Doğan, Vandeperre, Frederic, Vignes, Pierre, Xanthakis, Michail, Köpsel, Vera, and Peck, Myron A.

Published
2023
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3. Adaptation of sea turtles to climate warming: Will phenological responses be sufficient to counteract changes in reproductive output?

Author

Fuentes, Mariana M. P. B., Santos, Armando J. B., Abreu-Grobois, Alberto, Briseño-Dueñas, Raquel, Al-Khayat, Jassim, Hamza, Shafeeq, Saliba, Sally, Anderson, David, Rusenko, Kirt W., Mitchell, N. J., Gammon, Malindi, Bentley, Blair P., Beton, Damla, Booth, David T. B., Broderick, Annette C., Colman, Liliana P., Snape, Robin T. E., Calderón-Campuzano, María Fernanda, Cuevas, Eduardo, López-Castro, Melania Cecilia, Flores-Aguirre, Cynthia Dinorah, Méndez de la Cruz, Fausto, Segura-García, Y., Ruiz-García, A., Fossette, Sabrina, Gatto, Christopher R., Reina, Richard D., Girondot, Marc, Godfrey, Matthew, Guzmán-Hernández, Vicente, Hart, Catherine Edwina, Kaska, Yakup, Lara, Paulo Hunold, Marcovaldi, Maria Angela A. G. D., LeBlanc, Anne M., Rostal, David, Liles, Michael J., Wyneken, Jeanette, Lolavar, Alexandra, Williamson, Sean A., Manoharakrishnan, Muralidharan, Pusapati, Chandana, Chatting, Mark, Mohd Salleh, Sarahaizad, Patricio, Ana Rita, Regalla, A., Restrepo, Jaime, García, R., Santidrián-Tomillo, Pilar, Sezgin, Çisem, Shanker, Kartik, Tapilatu, Ricardo F., Turkozan, Oguz, Valverde, Roldán A., Williams, Kristina, Yilmaz, Can, Tolen, Nicholas, Nel, Ronel, Tucek, J., Legouvello, Diane, Rivas, Marga L., Gaspar, Cécile, Touron, M., Genet, Q., Salmon, Michael, Araujo, M. R., Freire, Jordana B., Castheloge, Vinicius D., Jesus, Paulo Roberto, Ferreira, Paulo D., Paladino, Frank V., Montero-Flores, D., Sozbilen, Doğan, Monsinjon, Jonathan R., Fuentes, Mariana M. P. B., Santos, Armando J. B., Abreu-Grobois, Alberto, Briseño-Dueñas, Raquel, Al-Khayat, Jassim, Hamza, Shafeeq, Saliba, Sally, Anderson, David, Rusenko, Kirt W., Mitchell, N. J., Gammon, Malindi, Bentley, Blair P., Beton, Damla, Booth, David T. B., Broderick, Annette C., Colman, Liliana P., Snape, Robin T. E., Calderón-Campuzano, María Fernanda, Cuevas, Eduardo, López-Castro, Melania Cecilia, Flores-Aguirre, Cynthia Dinorah, Méndez de la Cruz, Fausto, Segura-García, Y., Ruiz-García, A., Fossette, Sabrina, Gatto, Christopher R., Reina, Richard D., Girondot, Marc, Godfrey, Matthew, Guzmán-Hernández, Vicente, Hart, Catherine Edwina, Kaska, Yakup, Lara, Paulo Hunold, Marcovaldi, Maria Angela A. G. D., LeBlanc, Anne M., Rostal, David, Liles, Michael J., Wyneken, Jeanette, Lolavar, Alexandra, Williamson, Sean A., Manoharakrishnan, Muralidharan, Pusapati, Chandana, Chatting, Mark, Mohd Salleh, Sarahaizad, Patricio, Ana Rita, Regalla, A., Restrepo, Jaime, García, R., Santidrián-Tomillo, Pilar, Sezgin, Çisem, Shanker, Kartik, Tapilatu, Ricardo F., Turkozan, Oguz, Valverde, Roldán A., Williams, Kristina, Yilmaz, Can, Tolen, Nicholas, Nel, Ronel, Tucek, J., Legouvello, Diane, Rivas, Marga L., Gaspar, Cécile, Touron, M., Genet, Q., Salmon, Michael, Araujo, M. R., Freire, Jordana B., Castheloge, Vinicius D., Jesus, Paulo Roberto, Ferreira, Paulo D., Paladino, Frank V., Montero-Flores, D., Sozbilen, Doğan, and Monsinjon, Jonathan R.

Abstract

Sea turtles are vulnerable to climate change since their reproductive output is influenced by incubating temperatures, with warmer temperatures causing lower hatching success and increased feminization of embryos. Their ability to cope with projected increases in ambient temperatures will depend on their capacity to adapt to shifts in climatic regimes. Here, we assessed the extent to which phenological shifts could mitigate impacts from increases in ambient temperatures (from 1.5 to 3°C in air temperatures and from 1.4 to 2.3°C in sea surface temperatures by 2100 at our sites) on four species of sea turtles, under a “middle of the road” scenario (SSP2-4.5). Sand temperatures at sea turtle nesting sites are projected to increase from 0.58 to 4.17°C by 2100 and expected shifts in nesting of 26–43 days earlier will not be sufficient to maintain current incubation temperatures at 7 (29%) of our sites, hatching success rates at 10 (42%) of our sites, with current trends in hatchling sex ratio being able to be maintained at half of the sites. We also calculated the phenological shifts that would be required (both backward for an earlier shift in nesting and forward for a later shift) to keep up with present-day incubation temperatures, hatching success rates, and sex ratios. The required shifts backward in nesting for incubation temperatures ranged from −20 to −191 days, whereas the required shifts forward ranged from +54 to +180 days. However, for half of the sites, no matter the shift the median incubation temperature will always be warmer than the 75th percentile of current ranges. Given that phenological shifts will not be able to ameliorate predicted changes in temperature, hatching success and sex ratio at most sites, turtles may need to use other adaptive responses and/or there is the need to enhance sea turtle resilience to climate warming.

Published
2024

4. Uncovering loggerhead ( Caretta caretta ) navigation strategy in the open ocean through the consideration of their diving behaviour

Author

Laforge, Antoine, primary, Gaspar, Philippe, additional, Barat, Anne, additional, Boyer, Julien Temple, additional, Candela, Tony, additional, Bourjea, Jérôme, additional, Ciccione, Stéphane, additional, Dalleau, Mayeul, additional, Ballorain, Katia, additional, Monsinjon, Jonathan R., additional, and Bousquet, Olivier, additional

Published
2023
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6. Loggerhead turtle oceanic-neritic habitat shift reveals key foraging areas in the Western Indian Ocean

Author

Monsinjon, Jonathan R., primary, Laforge, Antoine, additional, Gaspar, Philippe, additional, Barat, Anne, additional, Bousquet, Olivier, additional, Ciccione, Stéphane, additional, Jean, Claire, additional, Ballorain, Katia, additional, Dalleau, Mayeul, additional, Coelho, Rui, additional, Bonhommeau, Sylvain, additional, and Bourjea, Jérôme, additional

Published
2023
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8. Priorities for Mediterranean marine turtle conservation and management in the face of climate change

Author

European Commission, Hellenic Foundation for Research and Innovation, Mazaris, Antonios D., Dimitriadis, Charalampos, Papazekou, Maria, Schofield, Gail, Doxa, Aggeliki, Chatzimentor, Anastasia, Turkozan, Oguz, Katsanevakis, Stelios, Lioliou, Aphrodite, Abalo-Morla, Sara, Aksissou, Mustapha, Arcangeli, Antonella, Attard, Vicent, El Hili, Hedia Attia, Atzori, Fabrizio, Belda, Eduardo J., Ben Nakhla, Lobna, Berbash, Ali A., Bjorndal, Karen A., Broderick, Annette C., Carmiñas, Juan A., Candan, Onur, Cardona, Luis, Cetkovic, Ilija, Dakik, Nabigha, de Lucia, Giuseppe Andrea, Dimitrakopoulos, Panayiotis G., Diryap, Salih, Favilli, Costanza, Fortuna, Caterina Maria, Fuller, Wayne J., Gallon, Susan, Hamza, Abdulmaula, Jribi, Imed, Ben Ismail, Manel, Kamarianakis, Yiannis, Kaska, Yasup, Korro, Kastriot, Kotsoubas, Drosos, Lauriano, Giancarlo, Lazar, Bojan, March, David, Marco, Adolfo, Minotou, Charikleia, Monsinjon, Jonathan R., Naguib, Nahla M., Palialexis, Andreas, Piroli, Vilma, Sami, Karaa, Bektaş Sönmez, Sourbès, Laurent, Sözbilen, Doǧan, Vandeperre, Frederic, Vignes, Pierre, Xanthakis, Michail, Köpsel, Vera, Peck, Myron A., European Commission, Hellenic Foundation for Research and Innovation, Mazaris, Antonios D., Dimitriadis, Charalampos, Papazekou, Maria, Schofield, Gail, Doxa, Aggeliki, Chatzimentor, Anastasia, Turkozan, Oguz, Katsanevakis, Stelios, Lioliou, Aphrodite, Abalo-Morla, Sara, Aksissou, Mustapha, Arcangeli, Antonella, Attard, Vicent, El Hili, Hedia Attia, Atzori, Fabrizio, Belda, Eduardo J., Ben Nakhla, Lobna, Berbash, Ali A., Bjorndal, Karen A., Broderick, Annette C., Carmiñas, Juan A., Candan, Onur, Cardona, Luis, Cetkovic, Ilija, Dakik, Nabigha, de Lucia, Giuseppe Andrea, Dimitrakopoulos, Panayiotis G., Diryap, Salih, Favilli, Costanza, Fortuna, Caterina Maria, Fuller, Wayne J., Gallon, Susan, Hamza, Abdulmaula, Jribi, Imed, Ben Ismail, Manel, Kamarianakis, Yiannis, Kaska, Yasup, Korro, Kastriot, Kotsoubas, Drosos, Lauriano, Giancarlo, Lazar, Bojan, March, David, Marco, Adolfo, Minotou, Charikleia, Monsinjon, Jonathan R., Naguib, Nahla M., Palialexis, Andreas, Piroli, Vilma, Sami, Karaa, Bektaş Sönmez, Sourbès, Laurent, Sözbilen, Doǧan, Vandeperre, Frederic, Vignes, Pierre, Xanthakis, Michail, Köpsel, Vera, and Peck, Myron A.

Abstract

As climate-related impacts threaten marine biodiversity globally, it is important to adjust conservation efforts to mitigate the effects of climate change. Translating scientific knowledge into practical management, however, is often complicated due to resource, economic and policy constraints, generating a knowledge-action gap. To develop potential solutions for marine turtle conservation, we explored the perceptions of key actors across 18 countries in the Mediterranean. These actors evaluated their perceived relative importance of 19 adaptation and mitigation measures that could safeguard marine turtles from climate change. Of importance, despite differences in expertise, experience and focal country, the perceptions of researchers and management practitioners largely converged with respect to prioritizing adaptation and mitigation measures. Climate change was considered to have the greatest impacts on offspring sex ratios and suitable nesting sites. The most viable adaptation/mitigation measures were considered to be reducing other pressures that act in parallel to climate change. Ecological effectiveness represented a key determinant for implementing proposed measures, followed by practical applicability, financial cost, and societal cost. This convergence in opinions across actors likely reflects long-standing initiatives in the Mediterranean region towards supporting knowledge exchange in marine turtle conservation. Our results provide important guidance on how to prioritize measures that incorporate climate change in decision-making processes related to the current and future management and protection of marine turtles at the ocean-basin scale, and could be used to guide decisions in other regions globally. Importantly, this study demonstrates a successful example of how interactive processes can be used to fill the knowledge-action gap between research and management.

Published
2023

9. Key issues in assessing threats to sea turtles: knowledge gaps and future directions

Author

Florida State University, Fondation Bertarelli, Ministerio de Ciencia e Innovación (España), National Science Foundation (US), American Geophysical Union, Agencia Estatal de Investigación (España), Fuentes, Mariana M. P. B., McMichael, Erin, Kot, Connie Y., Silver-Gorges, Ian, Wallace, Bryan P., Godley, Brendan J., Brooks, Annabelle, Ceriani, Simona A., Cortés-Gómez, Adriana A., Dawson, Tiffany M., Dodge, Kara L., Flint, Mark, Jensen, Michael P., Komoroske, Lisa M., Kophamel, Sara, Lettrich, Matthew D., Long, Christopher A., Nelms, Sarah E., Patrício, Ana R., Robinson, Nathan J., Seminoff, Jeffrey A., Ware, Mate, Whitman, Elizabeth R., Chevallier, Damien, Clyde-Brockway, Chelsea, Korgaonkar, Sumedha A., Mancini, Agnese, Mello-Fonseca, Juliana, Monsinjon, Jonathan R., Neves-Ferreira, Isabella, Ortega, Anna A., Patel, Samir H., Pfaller, Joseph B., Ramirez, Matthew D., Raposo, Cheila, Smith, Caitlin E., Abreu-Grobois, F. Alberto, Hays, Graeme C., Florida State University, Fondation Bertarelli, Ministerio de Ciencia e Innovación (España), National Science Foundation (US), American Geophysical Union, Agencia Estatal de Investigación (España), Fuentes, Mariana M. P. B., McMichael, Erin, Kot, Connie Y., Silver-Gorges, Ian, Wallace, Bryan P., Godley, Brendan J., Brooks, Annabelle, Ceriani, Simona A., Cortés-Gómez, Adriana A., Dawson, Tiffany M., Dodge, Kara L., Flint, Mark, Jensen, Michael P., Komoroske, Lisa M., Kophamel, Sara, Lettrich, Matthew D., Long, Christopher A., Nelms, Sarah E., Patrício, Ana R., Robinson, Nathan J., Seminoff, Jeffrey A., Ware, Mate, Whitman, Elizabeth R., Chevallier, Damien, Clyde-Brockway, Chelsea, Korgaonkar, Sumedha A., Mancini, Agnese, Mello-Fonseca, Juliana, Monsinjon, Jonathan R., Neves-Ferreira, Isabella, Ortega, Anna A., Patel, Samir H., Pfaller, Joseph B., Ramirez, Matthew D., Raposo, Cheila, Smith, Caitlin E., Abreu-Grobois, F. Alberto, and Hays, Graeme C.

Abstract

Sea turtles are an iconic group of marine megafauna that have been exposed to multiple anthropogenic threats across their different life stages, especially in the past decades. This has resulted in population declines, and consequently many sea turtle populations are now classified as threatened or endangered globally. Although some populations of sea turtles worldwide are showing early signs of recovery, many still face fundamental threats. This is problematic since sea turtles have important ecological roles. To encourage informed conservation planning and direct future research, we surveyed experts to identify the key contemporary threats (climate change, direct take, fisheries, pollution, disease, predation, and coastal and marine development) faced by sea turtles. Using the survey results and current literature, we also outline knowledge gaps in our understanding of the impact of these threats and how targeted future research, often involving emerging technologies, could close those gaps

Published
2023

15. The climatic debt of loggerhead sea turtle populations in a warming world

Author

Monsinjon, Jonathan R., primary, Wyneken, Jeanette, additional, Rusenko, Kirt, additional, López-Mendilaharsu, Milagros, additional, Lara, Paulo, additional, Santos, Alexsandro, additional, dei Marcovaldi, Maria A.G., additional, Fuentes, Mariana M.P.B., additional, Kaska, Yakup, additional, Tucek, Jenny, additional, Nel, Ronel, additional, Williams, Kristina L., additional, LeBlanc, Anne-Marie, additional, Rostal, David, additional, Guillon, Jean-Michel, additional, and Girondot, Marc, additional

Published
2019
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