Marine turtle regional management units 2.0: an updated framework for conservation and research of wide-ranging megafauna species

Wallace, Bryan P., Posnik, Zachary A., Hurley, Brendan J., Dimatteo, Andrew D., Bandimere, Ashleigh, Rodriguez, Isabel, Maxwell, Sara M., Meyer, Lucy, Brenner, Hannah, Jensen, Michael P., LaCasella, Erin, Shamblin, Brian M., Abreu-Grobois, F. Alberto, Stewart, Kelly R., Dutton, Peter H., Barrios-Garrido, Hector, Dalleau, Mayuel, Dell'amico, Florence, Eckert, Karen L., Fitzsimmons, Nancy N., Garcia-Cruz, Marco, Hays, Graeme C., Kelez, Shaleyla, Lagueux, Cynthia J., Madden Hof, Christine A., Marco, Adolf, Martins, Samir L.T., Mobaraki, Asghar, Mortimer, Jeanne A., Nel, Ronel, Phillott, Andrea D., Pilcher, Nicolas J., Putman, Nathan F., Rees, Alan F., Rguez-Baron, Juan M., Seminoff, Jeffery A., Swaminathan, Adhith, Turkozan, Oguz, Vargas, Sarah M., Vernet, Pedro D., Vilaca, Sibelle, Whiting, Scott D., Hutchinson, Brian J., Casale, Paolo, and Mast, Roderic B. (2023) Marine turtle regional management units 2.0: an updated framework for conservation and research of wide-ranging megafauna species. Endangered Species Research, 52. pp. 209-223.

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Delineating spatial boundaries that accurately encompass complex, often cryptic, life histories of highly migratory marine megafauna can be a significant conservation challenge. For example, marine turtles range across vast ocean basins and coastal areas, thus complicating the evaluation of relative impacts of multiple overlapping threats and the creation of coherent conservation strategies. To address these challenges, spatially explicit ‘regional management units’ (RMUs) were developed in 2010 for all marine turtle species, globally. RMUs were intended to provide a consistent framework that organizes conspecific assemblages into units above the level of nesting rookeries and genetic stocks, but below the species level, within regional entities that may share demographic trajectories because they experience similar environmental conditions and other factors. From their initial conception, RMUs were intended to be periodically revised using new information about marine turtle distributions, life history, habitat use patterns, and population structure. Here, we describe the process used to update the 2010 RMU framework by incorporating newly published information and inputs from global marine turtle experts who are members of the IUCN Marine Turtle Specialist Group. A total of 48 RMUs for 6 of 7 marine turtle species and 166 distinct genetic stocks for all 7 species are presented herein. The updated RMU framework reflects a significant advance in knowledge of marine turtle biology and biogeography, and it provides improved clarity about the RMU concept and its potential applications. All RMU products have been made open access to support research and conservation initiatives worldwide.

Item ID: 81401
Item Type: Article (Research - C1)
ISSN: 1613-4796
Keywords: Marine turtle, Conservation priorities, Population boundaries, Population delineation, Spatial distribution
Copyright Information: © The authors, The Government of Western Australia, and outside the USA, The U.S. Government 2023. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited.
Date Deposited: 21 Dec 2023 01:36
FoR Codes: 41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410402 Environmental assessment and monitoring @ 50%
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410407 Wildlife and habitat management @ 50%
SEO Codes: 18 ENVIRONMENTAL MANAGEMENT > 1805 Marine systems and management > 180504 Marine biodiversity @ 100%
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