Spatiotemporal dynamics and conservation status of medicinal Aconitum species on the Qinghai-Tibet Plateau under climate change
文献类型：期刊论文
| 作者 | Li, Xiaoping; Zhou, Guoying |
| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2025 |
| 卷号 | 64 |
| 关键词 | Ecological niche modeling Ensemble model Climate change Geographical distribution patterns Conservation status |
| 英文摘要 | Aconitum species, distributed across the Qinghai-Tibet Plateau, possess significant medicinal and economic value. However, their conservation remains inadequately understood, particularly in the context of ongoing and future climate change. This study assessed the spatial and temporal dynamics of 14 Aconitum species by integrating ecological niche modeling with conservation planning. Using 846 occurrence records and 16 environmental variables, we applied an optimized maximum entropy model (MaxEnt) and the ensemble biomod2 framework to predict potential habitat suitability across 18 Mid-Holocene (MH), present, and future climate scenarios. Our results revealed that biomod2 outperformed MaxEnt in prediction accuracy. Isothermality (BIO3) emerged as the most influential environmental predictor. Most species exhibited range expansion from the MH to the present and underwent dynamic shifts under future climate projections, both expansions and contractions. A consistent northward and upward (high-elevation) migration trend was observed across scenarios. Ecological niche indices also increased under present and future climates relative to the MH, suggesting altered niche breadths in response to environmental change. Despite these shifts, all species were assigned a medium priority (MP) conservation status. Threat assessments categorized 11 species as endangered (EN) and three as vulnerable (VU). Importantly, areas of the highest species richness, particularly the Hengduan Mountains, remain underrepresented in the current protected area network. These findings underscore the urgent need for expanding conservation efforts and protected areas in biodiversity hotspots. By elucidating the climate-driven distributional responses of Aconitum species, this study provides a critical foundation for the future conservation and sustainable management of these valuable medicinal resources on the Qinghai-Tibet Plateau. |
| 源URL | [http://210.75.249.4/handle/363003/62327]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Li, Xiaoping,Zhou, Guoying. Spatiotemporal dynamics and conservation status of medicinal Aconitum species on the Qinghai-Tibet Plateau under climate change[J]. GLOBAL ECOLOGY AND CONSERVATION,2025,64. |
| APA | Li, Xiaoping,&Zhou, Guoying.(2025).Spatiotemporal dynamics and conservation status of medicinal Aconitum species on the Qinghai-Tibet Plateau under climate change.GLOBAL ECOLOGY AND CONSERVATION,64. |
| MLA | Li, Xiaoping,et al."Spatiotemporal dynamics and conservation status of medicinal Aconitum species on the Qinghai-Tibet Plateau under climate change".GLOBAL ECOLOGY AND CONSERVATION 64(2025). |
入库方式： OAI收割
来源：西北高原生物研究所
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