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    张广才岭南段不同林分天牛科昆虫物种多样性比较

    Comparative study of Cerambycidae species diversity in different forest stands of southern Zhangguangcai Mountains, northeastern China.

    • 摘要: 2012—2013年,在张广才岭南段蛟河林业实验区管理局,采用拦截式诱捕器系统地调查了5个林分中天牛科昆虫的物种多样性,比较了各林分中天牛物种组成的差异,探讨了天牛科昆虫对森林环境变化的响应及其在森林监测中的应用潜力。共记录到天牛科昆虫 64种,隶属于7个亚科41属。其中,棍腿纹虎天牛和凹缘金花天牛为优势种,花天牛亚科、沟胫天牛亚科和天牛亚科为优势类群。3个优势类群的物种数量和个体数量在不同林分中具有较大的差异。在未经采伐的阔叶红松林(Ⅲ和Ⅳ)中,花天牛亚科的物种数、个体数量高于其他优势类群,同时也高于其他林分;在新采伐过的阔叶红松林Ⅴ中,沟胫天牛亚科物种数、个体数量高于其他优势类群;沟胫天牛亚科和天牛亚科物种数和个体数量高于其他林分。个体数量较多的13种天牛对林分的选择倾向不同,在新采伐的阔叶红松林Ⅴ中天牛科昆虫物种多样性最高,杨桦林和水胡林中最低。各林分中物种数量与个体数量呈极显著正相关(r=0.932,P0.001)。未经采伐过的阔叶红松林间相似性处于中等相似水平,相似性系数为0.62。

       

      Abstract: We systematically surveyed the species diversity of Cerambycidae at five forest stands in Jiaohe Forestry Experimental Region Administration of Jilin Province in southern Zhangguangcai Mountains with flying intercepted traps from 2012 to 2013, compared species composition among the five stands, and discussed the responses of Cerambycidae species to the change of stand habitat and their potential in forest monitoring. A total of 64 species of Cerambycidae, belonging to 7 subfamilies, 41 genera, were recorded. Among them Anaglyptus colobotheoidae and Gaurotes ussuriensis are the dominant species, and subfamilies of Lepturinae, Lamiinae and Cerambycinae are the dominant groups. The numbers of species and individuals of these three groups differ obviously among five stands (plots). In the uncut mixed broadleaved and Korean pine forest stands (KHL-Ⅲ and KHL-Ⅳ), the numbers of species and individuals of Lepturinae are higher than those of Lamiinae and Cerambycinae in the same stands, and also higher than those in other stands (YHL-Ⅰ, SHL-II and KHL-V). In the partially harvested mixed broadleaved and Korean pine forest stand (KHL-Ⅴ), the numbers of species and individuals of Lamiinae are higher than those of Lepturinae and Cerambycinae, and the numbers of species and individuals of Lamiinae and Cerambycinae are higher than those of other stands. Meanwhile, 13 species of Cerambycidae with more individuals show an obviously different tendency in selecting stand habitats; the species diversity is the highest in the partially harvested mixed broadleaved and Korean pine forest stand (KHL-Ⅴ), and the lowest in poplar-birch forest stand and ash-walnut forest stand (YHL-Ⅰ and SHL-Ⅱ). The numbers of species and individuals of Cerambycidae in each stand show a significantly positive correlation(r=0.932, P0.001). Similarity between uncut mixed broadleaved and Korean pine forest stands (KHL-Ⅲ and KHL-Ⅳ) reaches a moderate level with the similarity coefficient of 0.62.

       

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