| 曾籽言，范明宇，石福明，周志军,,基于最大熵（MaxEnt）模型的我国五种常见蝈螽全球适生区预测[J].环境昆虫学报,(): |
| 基于最大熵（MaxEnt）模型的我国五种常见蝈螽全球适生区预测 |
| Global prediction of suitable habitats for five common Gampsocleis species in China based on the MaxEnt model |
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| DOI： |
| 中文关键词: 螽斯科 MaxEnt模型 主导环境因子 潜在分布区 环境变量 |
| 英文关键词:Tettigoniidae MaxEnt model dominant environmental factors potential distribution areas environmental variable |
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| 摘要点击次数: 259 |
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| 中文摘要: |
| 【目的】探明蝈螽属Gampsocleis Fieber，1852的潜在适生分布区对观赏性鸣虫的资源保护利用具有重要意义。【方法】本研究采用最大熵模型（MaxEnt）结合全球分布记录与CMIP6气候数据，分析蝈螽属在共享社会经济路径（SSPs）气候情景（低排放SSP 1-2.6、中等排放SSP 2-4.5和高排放SSP 5-8.5）下的分布格局，并探讨了物种特异性响应特征。【结果】目前蝈螽属昆虫潜在分布面积约占全球面积（GLA）的12%，核心分布热点集中分布亚洲东部、欧洲南部及北美洲中部这三个主要的区域。在低排放SSP 1-2.6情景下，东亚核心栖息地连通性最强，并向极地有序扩张；而高排放SSP 5-8.5则导致稳定地区显著缩减，且在北半球高纬度地区出现“伪扩张”模式。同时，蝈螽属不同物种响应存在明显差异，如中华蝈螽G. sinensis表现出较强的扩张能力，而乌苏里蝈螽G. ussuriensis对气候变化更为敏感。【结论】本研究结果不仅为基于气候适应性制定保护规划提供了科学依据，也对加深理解昆虫群落对全球变化的响应机制提供了研究案例。 |
| 英文摘要: |
| 【Aim】Elucidating the potential suitable distribution areas of the katydid genus Gampsocleis Fieber, 1852 (Orthoptera: Tettigoniidae) holds significant implications for the conservation and sustainable utilization of ornamental singing insect resources. 【Methods】This study utilized the Maximum Entropy (MaxEnt) modeling approach, integrating global occurrence records with CMIP6 climate projections, to analyze the distribution patterns of the katydid genus Gampsocleis under Shared Socioeconomic Pathways (Low emissions SSP 1-2.6, Intermediate emissions SSP 2-4.5, and High emissions SSP 5-8.5) scenarios, while investigating species-specific response characteristics. 【Results】The findings revealed that the katydid genus Gampsocleis currently occupies potential habitats covering approximately 12% of global land area (GLA), with core distributional hotspots concentrated in three major regions: East Asia, Southern Europe, and central North America. Under the low-emission scenario SSP 1-2.6, East Asian core populations maintained the strongest habitat connectivity with orderly poleward expansion, whereas the high-emission scenario SSP 5-8.5 induced significant stable habitat contraction and pseudo-expansion patterns in northern latitudes, characterized by non-viable temporary habitats. Concurrently, pronounced interspecific divergence was observed within Gampsocleis, with G. sinensis demonstrating robust range expansion capacity, while G. ussuriensis exhibited heightened sensitivity to climate forcing. 【Conclusion】This study provides a scientific basis for developing climate-adaptive conservation planning and serves as a representative case for understanding the response mechanisms of insect communities to global change. |
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