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. 2020 Jan 17;10:548. doi: 10.1038/s41598-019-57280-3

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Vulnerability of marine mammals to climate change. (a) Ranking of the 20 most vulnerable marine mammals to climate change according to two RCP scenarios: RCP2.6 (left) and RCP8.5 (right). The current IUCN status is indicated by a color range from red (critically endangered) to light blue (least concern) and the data deficient status is shown in violet. (b) Relationship between the intrinsic sensibility of each marine mammal to climate change and its exposure to projected climate change within its geographical range according to the RCP8.5 scenario. Each bubble is proportional to the level of functional originality (i.e., the measure of the extent to which a given species is functionally unique among the global marine mammal fauna). In the top right corner, the drawings of the most vulnerable species also display the highest levels of evolutionary distinctiveness, namely, the dugong, the African manatee and the Florida manatee. (c) Relationship between the intrinsic sensitivity of each marine mammal to climate change and its exposure to projected climate change within its geographical range according to the RCP8.5 scenario. Each bubble is proportional to the level of evolutionary distinctiveness (i.e., which represents the relative contribution of a species to the evolutionary history of the global marine mammal fauna). In the top right corner, the drawings of the most vulnerable species also display the species with highest levels of functional originality, namely, the North Pacific right whale, the gray whale, the dugong, the Northern elephant seal and the walrus.