关键词: 鳞翅目, 群落结构, 多样性, 植被类型, 火干扰

Abstract: We analyzed the community structure and diversity of moths in four habitats, including coniferous forest, broad-leaved deciduous forest, mixed forest, and shrubbery forest (burnedarea), in the Laodingshan National Forest Park in Shanxi Province. A total of 5515 moth individuals, consisting of 13 families, 136 genera, and 172 species, were collected. Crambidae had the highest number of individuals, while Noctuidae had the highest number of species. Among the four habitats, the mixed forest had the highest moth species richness, with 139 species belonging to 13 families and 108 genera. The shrubbery forest had the lowest species richness, with 87 species belonging to 11 families and 77 genera. Noctuidae, Pyralidae, Crambidae, and Geometridae were the dominant families, while Crocidophora auratails, Endotricha portialis, and Dioryctria pryeri were the dominant species. The broadleaved deciduous forest had the highest Simpson index, Shannon index, and Pielou evenness index, while the coniferous forest had the lowest values in these indices. The mixed forest had the highest Margalef richness index, while the shrubbery forest had the lowest. The Simpson index and Shannon index of moths were positively correlated with Pielou evenness index and Margalef richness index. The Jaccard similarity coefficient and Euclidean distance clustering results showed that moth community in the shrubbery forest had a low similarity with those in the other three habitats. The speciesabundance curves in all four habitats fit the logarithmic distribution model, which is in line with the niche preemption hypothesis, indicating the instability of moth community structure and the low habitat quality in Laodingshan National Forest Park.

Key words: Lepidoptera, community structure, diversity, vegetation type, fire disturbance.