凉水自然保护区原始阔叶红松林蛾类群落结构及季节动态1）

摘要

The moth community was investigated by light trap in June to September 2013 and 2014 to reveal the community struc-ture and seasonal dynamic of moths in broad leaved Korean pine forest of Xiaoxing ’ an Mountains .A total of 8 919 speci-mens were collected, belonging to 394 species, 26 families.Noctuidae and Geometridae were the dominant taxa , but both of them have great difference in different periods .The similarity of moth communities in different periods was very differ-ent, and dominant species composition had a great difference , the proportion of community specific species was larger in each period.In time series, the species diversity index was significantly positively correlated with the richness index .The species abundance distribution of the moth community was in accordance with the lognormal distribution , except for the end of the growing season .The moth communities in the broad leaved Korean pine forest ecosystem in Liangshui Nature Reserve are more stable, and the environmental conditions are superior .%为研究小兴安岭阔叶红松林蛾类群落组成结构及季节动态，2013年和2014年6—9月份，通过灯诱法对阔叶红松林蛾类群落进行系统的调查。共采集蛾类样本8919头，分属26科394种，夜蛾科和尺蛾科为优势类群；不同时期蛾类群落相似性均为极不相似，优势种组成具有极大的差异，各时期群落特有种均较多；蛾类物种多样性指数和丰富度均在夏季达最大值，均匀度指数在秋季达最大值，多样性指数与丰富度指数时间变化趋势为显著的正相关；种－多度分析表明，除生长季末期外均表现为对数正态分布。凉水自然保护区阔叶红松林生态系统蛾类群落组成季节差异较大，群落结构均较为稳定，环境条件较为优越。