长白山三种林型对蛾类群落结构和多样性的影响

选择长白山阔叶红松林、白桦林和落叶松林3种林型,对各林型蛾类的群落结构和多样性进行了比较。结果表明:蛾类各科(亚科)在3种林型中的比例分配明显不同。阔叶红松林中尺蛾科数量占优绝对优势,占47.0%,其次是舟蛾科,为9.3%。优势种为台褥尺蛾,占17.2%;从蛾类总种数和蛾类个体总数上看,白桦林中蛾类物种丰富度、多度和多样性指数明显高于阔叶红松林和落叶松林,优势度指数则最低;白桦林的优势种有尘尺蛾、枞灰尺蛾和双星白枝尺蛾;在落叶松林中,灯蛾科、波纹蛾科和枯叶蛾科的多度都比阔叶红松林和白桦林高,其优势种为阿泊波纹蛾。

Moth community structure and diversity in three forest types in Changbai Mountains of Northeast China

Broadleaved Korean pine forest, birch forest, and larch forest were selected to compare the moth community structure and diversity in Changbai Mountains, Northeast China. In the three forest types, the proportional allocation of moth families (subfamiles) was apparently different. In broad-leaved Korean pine forest, Geometridae was absolutely dominant, occupying 47.0% of the total, followed by Notodontidae, occupying 9.3%. The dominant species was Eustroma changi, occurring at 17.2%. As for the total species number and total individual number, the moth species richness, abundance, and diversity index in birch forest were significantly higher, but the moth dominance index in this forest was the lowest, as compared with those in broadleaved Korean pine forest and larch forest. The moth dominant species in birch forest were Serraca punctinalis conferenda, Deileptenia ribeata, and Lomographa bimaculata subnotata. In larch forest, the species abundance of Arctiidae, Thyatiridae, and Lasiocampidae was higher than that in broadleaved Korean pine forest and birch forest, and the dominant species was Bombycia ampliata.