The incipient range expansion of green turtles in the Mediterranean

The incipient range expansion of green turtles in the Mediterranean | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Molecular Ecology This is a preprint and has not been peer reviewed. Data may be preliminary. 18 January 2025 V1 Latest version Share on The incipient range expansion of green turtles in the Mediterranean Authors : Gisela Marín-Capuz 0000-0002-4166-4685 [email protected] , Jose Crespo , Simon Demetropoulos , Lucia Garrido , Jane Hardwick , Imed Jribi , Dimitris Margaritoulis , … Show All … , Aliki Panagopoulou , Ana Patrício , Nathan Robinson , Marta Pascual 0000-0002-6189-0612 , Cinta Pegueroles , and Carlos Carreras 0000-0002-2478-6445 Show Fewer Authors Info & Affiliations https://doi.org/10.22541/au.173720395.57913735/v1 Published Molecular Ecology Version of record Peer review timeline 420 views 205 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract In response to global climate change, numerous taxa are expanding their living ranges. In species with highly migratory aptitudes such as sea turtles, this expansion may be driven by individuals either from nearby or distant areas. Recent observations suggest a range expansion of the philopatric green turtle (Chelonia mydas) to the central and western Mediterranean. To assess the origin of the turtles found in these novel habitats, we first built a genomic baseline, using 2bRAD sequencing on individuals from regular nesting areas in three Regional Management Units (RMU): North Atlantic, South Atlantic and Mediterranean (5 individuals from each RMU). Secondly, we compared this baseline with genotyped hatchlings from three nests laid in new Mediterranean sites and four mature-size green turtles tagged with satellite telemetry in the western Mediterranean basin. Our analyses revealed that the nest in Tunisia was sired by turtles from the South Atlantic RMU, while the two nests in Crete were sired by turtles from the Mediterranean RMU. In addition, the three adult turtles sampled in southwestern Mediterranean were genetically assigned to the South Atlantic RMU while the remaining individual within reproductive size, sampled in northwestern Mediterranean, was genetically assigned to the Mediterranean RMU. These results suggest a simultaneous potential colonisation by two distant regions. We propose that the range expansion of green turtles into the central and western Mediterranean, as also already observed in loggerhead turtles (Caretta caretta), is likely driven by climate change and these populations may become globally important as temperatures continue to increase. Supplementary Material File (marin_capuz_submission.doc) Download 1.00 MB Information & Authors Information Version history V1 Version 1 18 January 2025 Peer review timeline Published Molecular Ecology Version of Record 16 May 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Molecular Ecology Keywords colonisation genomics global warming individual assignment marine turtle satellite telemetry Authors Affiliations Gisela Marín-Capuz 0000-0002-4166-4685 [email protected] Universitat de Barcelona Facultat de Biologia View all articles by this author Jose Crespo Fundación Oceanogràfic de la Comunitat Valenciana View all articles by this author Simon Demetropoulos Mediterranean Turtle Research and Conservation Society View all articles by this author Lucia Garrido Fundación para la Conservación y la Recuperación de Animales Marinos (CRAM) View all articles by this author Jane Hardwick Cayman Islands Department of Environment View all articles by this author Imed Jribi BIOME Lab Sfax Faculty of Sciences, University of Sfax View all articles by this author Dimitris Margaritoulis ARCHELON, the Sea Turtle Protection Society of Greece View all articles by this author Aliki Panagopoulou ARCHELON, the Sea Turtle Protection Society of Greece View all articles by this author Ana Patrício Universidade de Lisboa View all articles by this author Nathan Robinson Institut de Ciències del Mar, Spanish National Research Council - Consejo Superior de Investigaciones Científicas View all articles by this author Marta Pascual 0000-0002-6189-0612 Universitat de Barcelona Facultat de Biologia View all articles by this author Cinta Pegueroles Universitat Autonoma de Barcelona Facultat de Biociencies View all articles by this author Carlos Carreras 0000-0002-2478-6445 Universitat de Barcelona Facultat de Biologia View all articles by this author Metrics & Citations Metrics Article Usage 420 views 205 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Gisela Marín-Capuz, Jose Crespo, Simon Demetropoulos, et al. The incipient range expansion of green turtles in the Mediterranean. Authorea . 18 January 2025. DOI: https://doi.org/10.22541/au.173720395.57913735/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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