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Updated global conservation status and priorities for marine turtles

BP Wallace, AN Bandimere, FA Abreu-Grobois, H Acosta, J Akiti, M Akomedi, J Alfaro-Shigueto, CD Allen, D Angenda, I Ayissi, J Azanza Ricardo, KG Barrientos-Muñoz, H Barrios-Garrido, KA Bjorndal, E Bretón Vargas, AC Broderick, R Calderón Peña, C Carreras, SA Ceriani, LP Colman, AA Cortés-Gómez, L Crespo, E Cuevas, A Dah, A de Groene, C Delgado Trejo, S Demetropoulos, A Dias, C Diez, NA Dos Santos, JS Dossou Bodjrenou, MM Early Capistrán, KL Eckert, C Eizaguirre, L Ekanayake, M Escobedo Mondragón, Nicole Esteban Orcid Logo, D Feliciano, RS Fernandes, B Ferreira-Airaud, A Foley, LG Fonseca, Y Forneiro Martín-Viaña, S Fossette, MMPB Fuentes, J Gaglo, AR Gaos, D Gidsicki, B Giffoni, A Girard, M Girondot, MH Godfrey, BJ Godley, RJ González Díaz Mirón, M Hamann, JM Hancock, CE Hart, GC Hays, R Herrera, S Hochscheid, S Hoekstra, P Huerta-Rodríguez, G Inteca, T Ishihara, MP Jensen, I Jribi, N Kale, Y Kaska, S Kelez, IK Kelly, S Köhnk, P Lara, M Lasfargue, AM Lauritsen, DZM Le Gouvello, A Liusamoa, M López, MC López-Castro, M Lopez-Mendilaharsu, CMM Louro, T Luna, CA Madden, D Mahabir, A Mancini, M Manoharakrishnan, MA Marcovaldi, RC Martínez-Portugal, A Mastrogiacomo, EIOP Matilde, B Mawunyo Adzagba, S Mbungu, C Miranda, F Moncada, BA Morales-Mérida, JA Mortimer, SKK Murakawa, MA Nalovic, R Nel, R Ngafack, H Nishizawa, M Ogou, A Panagopoulou, AR Patricio, E Peralta Buendía, AD Phillott, NJ Pilcher, MMR Polyak, RIT Prince, EH Raynus, RD Reina, JM Rguez-Baron, AE Robbins, AS Santos, AL Sarti-Martínez, G Schofield, JA Seminoff, I Serrano, BM Shamblin, K Shanker, BA Stacy, G Stahelin, MK Staman, M Stelfox, KR Stewart, A Taxonera, AD Tucker, O Turkozan, RP van Dam, CH van de Geer, S Viera, L West, AU Whiting, SD Whiting, L Wienand, SR Wijntuin, N Wildermann, PM Zárate, P Casale, A DiMatteo, BJ Hurley, BJ Hutchinson, SM Maxwell, ZA Posnik, I Rodriguez, RB Mast

Endangered Species Research, Volume: 56, Pages: 247 - 276

Swansea University Author: Nicole Esteban Orcid Logo

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DOI (Published version): 10.3354/esr01385

Abstract

Assessing conservation status and pursuing applicable management priorities for marine megafauna across multiple scales pose significant challenges. Because marine turtles exemplify these challenges, the IUCN Marine Turtle Specialist Group (MTSG) developed the ‘conservation priorities portfolio’ (CP...

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Published in: Endangered Species Research
ISSN: 1863-5407 1613-4796
Published: Inter-Research Science Center 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa69343
Abstract: Assessing conservation status and pursuing applicable management priorities for marine megafauna across multiple scales pose significant challenges. Because marine turtles exemplify these challenges, the IUCN Marine Turtle Specialist Group (MTSG) developed the ‘conservation priorities portfolio’ (CPP) framework in 2011 to evaluate population risk and threats for regional management units (RMUs). Here, the MTSG has updated the 2011 CPP framework through an inclusive assessment process. Expert elicitation results involving 145 individuals from 50 countries suggests that marine turtle conservation status appears to be improving, but significant challenges remain. Since the previous assessment, long-term abundance trends increased on average, and threat impact scores improved for nearly twice as many RMUs (53%) as worsened (28%) (≥10% threshold for changes in numeric scores). While expert-assessed threat impacts have generally decreased, fisheries bycatch remains the highest scored threat across regions and species. Risk-threat staus improved for most (54%) RMUs. Over 40% of RMUs were scored as low risk-low threats, of which 8 were green turtles Chelonia mydas RMUs. Less than 20% of RMUs were scored as high risk-high threats, of which 4 were leatherback turtles Dermochelys coriacea. Most high risk-high threats RMUs were in the Pacific Ocean, while most low risk-low threats RMUs were in the Atlantic Ocean. Eleven RMUs were evaluated as having critical data needs. Our results—also provided through an interactive data dashboard—underscore the importance of context-specific planning to effectively target limited conservation resources. Future assessments should further prioritize inclusion of under-represented topics, researchers, and regions to better address multi-faceted conservation challenges.
Keywords: Status assessments; Threat impacts; IUCN Red List; Conservation priority-setting; Endangered species ; Marine megafauna
College: Faculty of Science and Engineering
Funders: None
Start Page: 247
End Page: 276

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