Comparative population genomics of manta rays has global implications for management
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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Yn: Molecular Ecology, 23.11.2023.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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T1 - Comparative population genomics of manta rays has global implications for management
AU - Humble, Emily
AU - Hosegood, Jane
AU - Carvalho, Gary
AU - De Bruyn, Mark
AU - Creer, Simon
AU - Stevens, Guy M.W.
AU - Armstrong, Amelia
AU - Bonfil, Ramon
AU - Deakos, Mark
AU - Fernando, Daniel
AU - Froman, Niv
AU - Peel, Lauren R.
AU - Pollett, Stephen
AU - Ponzo, Alessandro
AU - Stewart, Joshua D.
AU - Wintner, Sabine
AU - Ogden, Rob
PY - 2023/11/23
Y1 - 2023/11/23
N2 - Understanding population connectivity and genetic diversity is of fundamental importance to conservation. However, in globally threatened marine megafauna, challenges remain due to their elusive nature and wide-ranging distributions. As overexploitation continues to threaten biodiversity across the globe, such knowledge gaps compromise both the suitability and effectiveness of management actions. Here, we use a comparative framework to investigate genetic differentiation and diversity of manta rays, one of the most iconic yet vulnerable groups of elasmobranchs on the planet. Despite their recent divergence, we show how oceanic manta rays (Mobula birostris) display significantly higher heterozygosity than reef manta rays (Mobula alfredi) and that M. birostris populations display higher connectivity worldwide. Through inferring modes of colonization, we reveal how both contemporary and historical forces have likely influenced these patterns, with important implications for population management. Our findings highlight the potential for fisheries to disrupt population dynamics at both local and global scales and therefore have direct relevance for international conservation of marine species.
AB - Understanding population connectivity and genetic diversity is of fundamental importance to conservation. However, in globally threatened marine megafauna, challenges remain due to their elusive nature and wide-ranging distributions. As overexploitation continues to threaten biodiversity across the globe, such knowledge gaps compromise both the suitability and effectiveness of management actions. Here, we use a comparative framework to investigate genetic differentiation and diversity of manta rays, one of the most iconic yet vulnerable groups of elasmobranchs on the planet. Despite their recent divergence, we show how oceanic manta rays (Mobula birostris) display significantly higher heterozygosity than reef manta rays (Mobula alfredi) and that M. birostris populations display higher connectivity worldwide. Through inferring modes of colonization, we reveal how both contemporary and historical forces have likely influenced these patterns, with important implications for population management. Our findings highlight the potential for fisheries to disrupt population dynamics at both local and global scales and therefore have direct relevance for international conservation of marine species.
U2 - 10.1111/mec.17220
DO - 10.1111/mec.17220
M3 - Article
JO - Molecular Ecology
JF - Molecular Ecology
SN - 0962-1083
ER -