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

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.