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. 2023 Feb 13;13:2568. doi: 10.1038/s41598-023-28413-6

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© The Author(s) 2023

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Representation of distribution of crocodilian species and spatial relationship of the Mean Percentage Overlap (MPO) between each species range and the global PA networks. Results of null models: green dots denote values significantly higher than expected by chance, red dots denote values significantly lower than expected by chance, and yellow (above mean) and orange (below mean) dots denote non-significant (p < 0.05) values. (a) Crocodilian species in North, Central and South America (Amis = Alligator mississippiensis, Cyac = Caiman yacare, Clat = Ca. latirostris, Ccro = Ca. crocodilus, Cacu = Crocodylus acutus, Cint = Cr. intermedius, Cmor = Cr. moreletii, Crho = Cr. rhombifer, Mnig = Melanosuchus niger, Ppal = Paleosuchus palpebrosus, Ptri = P. trigonatus). (b) Crocodilian species in Africa and the Middle East (Cnil = Cr. niloticus, Csuc = Cr. suchus, Mcat = Mecistops cataphractus, Mlep = Me. leptorhynchus, Otet = Osteolaemus tetraspis, Oaft = O. aftezelli, Oosb = O. osborni). (c) Crocodilian species in Asia and Oceania (Asin = A. sinensis, Chal = Cr. halli, Cjoh = Cr. johnsoni, Cmin = Cr. mindorensis, Cnov = Cr. novaeguineae, Cpal = Cr. palustris, Cpor = Cr. porosus, Csia = Cr. siamensis, Ggan = Gavialis gangeticus, Tsch = Tomistoma schlegelii). Dashed lines indicate the mean percentage overlap from 1,000 randomizations, and the light blue surface represents the random range, with 95% confidence interval. The maps were created in ArcGIS Pro software⁶⁰ and the illustrations of species were created by L-d-M, Lia.