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Data from: Predicted global redistribution of pyrophilous beetle Melanophila acuminata (Coleoptera: Buprestidae) under climate change

Wang, Jieqiong1; Liu, Shiqi1; Li, Yingying1; Shi, Aiming1; Li, Yunchun1; Yang, Ding2; Wei, Zhonghua1

Published Sep 09, 2026 on Dryad. https://doi.org/10.5061/dryad.r4xgxd2v0

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Sep 09, 2026 version files 222.45 MB

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Abstract

The pyrophilous beetle Melanophila acuminata is a decomposer of freshly burned wood, playing a critical role in nutrient cycling within forest ecosystems. To investigate the impact of climate change on the global distribution of M. acuminata, this study employed MaxEnt modeling in conjunction with 22 environmental variables under current and future conditions (2050s and 2070s) to conduct a comparative analysis of its suitable habitats. After rational screening, a total of 795 global occurrence records and 10 selected key environmental variables were incorporated into the MaxEnt model, which demonstrated excellent predictive accuracy (AUC ≥ 0.919). The results indicate that the mean temperature of the coldest quarter (Bio11) and the precipitation of the driest month (Bio14) are the primary factors limiting the distribution of M. acuminata. Under current climate conditions, its core suitable areas are concentrated in Northern Europe and the border region between the United States and Canada. Under the high-emission scenario (SSP5-8.5) in the 2070s, the core suitable area is projected to contract by nearly 36%, with the centroid shifting northwestward to higher elevation and an increase in habitat fragmentation. This trend of contraction is closely associated with the species' highly specialized infrared sensory ability, which rely on habitat connectivity. Based on the predicted suitable habitats of M. acuminata in 2050s and 2070s, Future conservation efforts should focus on core areas in Northern Europe and Canada.