Genomic tools for comparative conservation genetics among three recently diverged stag beetles ( Lucanus , Lucanidae )

• Published in: Insect conservation and diversity 2023-11, Vol.16 (6), p.853-869
• Main Authors: De Vivo, Mattia, Chou, Min‐Hsun, Wu, Shu‐Ping, Kuan, Yi‐Hsiu, Chen, Wei‐Yun, Wang, Liang‐Jong, Morgan, Brett, Phang, Guan‐Jie, Huang, Jen‐Pan
• Format: Article
• Language: English
• Subjects: Biodiversity; Conservation genetics; Demography; Divergence; Gene flow; Genomics; Lucanidae; Pleistocene; Population decline
• ISSN: 1752-458X; 1752-4598
• DOI: 10.1111/icad.12678

We are witnessing a rapid decline in global biodiversity. International protocols and local conservation laws have been installed to counter such an unprecedent rate of decline. However, quantitatively evaluating how much biodiversity has been lost due to climatic and anthropogenic effects and how much biodiversity has been restored due to conservation efforts remains challenging. We applied a comparative conservation genomic approach to statistically and quantitatively address these questions using three geographical taxa from a stag beetle species complex. We found that the three sky‐island taxa formed three independently evolving units without detectable post‐divergence gene flow; furthermore, the three taxa, which have been divergent from each other since the mid‐Pleistocene, have experienced episodes of demographic decline in the past. More importantly, even though idiosyncratic anthropogenic exploitations have been hypothesised to impact the recent demographic history (