Wen Xuanye, Yang Ding, You Feng, Li Xiaopeng, Tang Bingmin, He Chuanjie, Wang Rulin, Wang Bingyu, Li Tao, Chai Shouquan
Center for Biological Disaster Prevention and Control, National Forestry and Grassland Administration, Shenyang, China.
Gansu Grassland Technical Extension Station, Lanzhou, China.
J Econ Entomol. 2024 Dec 28;117(6):2433-2439. doi: 10.1093/jee/toae251.
Gynaephora alpherakii (Grum-Grschimailo) (Lepidoptera: Lymantriidae) is a major pest in alpine meadow areas in the Qinghai-Tibetan Plateau (QTP) and causes severe losses in the local livestock production industry. Assessing areas at high risk for G. alpherakii infestation is critical for the effective management of this pest. In this study, an ensemble distribution model was used to analyze areas suitable for G. alpherakii on the QTP. Risk zoning was performed based on the vegetation and environmental conditions in areas with high-occurrence points, and differences between high-occurrence points and other occurrence points were compared. The results revealed that the suitable areas for G. alpherakii on the QTP amounted to 28.27 × 104 hm2, accounting for 10.94% of the total area of the QTP; the area of high-risk was 19.07 × 104 hm2, and these areas were located mainly in the eastern part of the QTP. Qinghai Province had the highest risk, accounting for 77% of the total area identified as high-risk. In terms of habitat, G. alpherakii preferred alpine Kobresia meadows, which have abundant sunshine, loose soil, and scarce precipitation. This study supports efforts to manage G. alpherakii outbreaks and contributes to the ecological protection of the QTP.
青海云杉尺蛾（Gynaephora alpherakii (Grum-Grschimailo)）（鳞翅目：毒蛾科）是青藏高原高寒草甸地区的主要害虫，给当地畜牧业造成严重损失。评估青海云杉尺蛾的高风险侵染区域对于有效治理该害虫至关重要。本研究采用集成分布模型分析了青藏高原上适合青海云杉尺蛾生存的区域。根据高发生点区域的植被和环境条件进行风险分区，并比较了高发生点与其他发生点之间的差异。结果表明，青藏高原上适合青海云杉尺蛾生存的区域面积为28.27×104 hm2，占青藏高原总面积的10.94%；高风险区域面积为19.07×104 hm2，这些区域主要位于青藏高原东部。青海省的风险最高，占确定为高风险区域总面积的77%。在栖息地方面，青海云杉尺蛾偏好阳光充足、土壤疏松且降水稀少的高寒嵩草草甸。本研究为青海云杉尺蛾爆发的治理工作提供了支持，并有助于青藏高原的生态保护。
