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Four centuries of commercial whaling eroded 11,000 years of population stability in bowhead whales

作者:Michael V. Westbury, Stuart C. Brown, Andrea A. Cabrera, Hernán E. Morales, Bárbara Parreira, Jilong Ma, Moisès Coll Macià, Alba Rey-Iglesia, Arthur S. Dyke, Camilla Hjorth Scharff‐Olsen, Michael Scott, Øystein Wiig, Lutz Bachmann, Kit M. Kovacs, Christian Lydersen, Steven H. Ferguson, Paul Szpak, Damien A. Fordham, Eline D. Lorenzen · 发表于:Cell · 年份:2026 · DOI:10.1016/j.cell.2026.02.022 · 被引用次数:2 · 研究领域:Marine animal studies overview、Marine and fisheries research、Arctic and Russian Policy Studies

Bowhead whales were heavily exploited during commercial whaling between the 16th and 20th centuries. Current and near-future climate warming poses a new threat. Assessing bowhead vulnerability to climatic change remains challenging due to insufficient knowledge regarding responses to past climates and pre-whaling population dynamics. We integrate paleogenomics and stable isotopes ( δ 13 C and δ 15 N) from 206 bowhead fossils from the Atlantic Arctic with paleoclimate and ecological modeling based on 823 radiocarbon-dated fossils, including 140 from this study. We find long-term resilience of bowheads to Holocene environmental perturbations, with no detectable changes in genetic diversity or population structure. Simulated commercial-whaling-driven genetic and fitness changes indicate that population subdivision and loss of genetic diversity are unlikely to be fully realized, despite nearly a century since whaling ceased. Furthermore, even in simulated complete population recovery scenarios, overall fitness did not return to pre-whaling levels, potentially compromising the future resilience of bowhead whales.