三湖自然保护区不同林型食腐甲虫群落时间动态

Temporal Dynamics of Saprophagous Beetles Communities of Different Forest Types in Sanhu National Nature Reserve

采用挡板式飞翔拦截诱捕器对三湖自然保护区食腐甲虫进行连续采集,分析不同林型食腐甲虫时间动态。结果表明:三湖自然保护区食腐甲虫物种数和个体数分别在6月上旬和5月下旬达到最高值;物种丰富度指数在6月上旬达到最大值,多样性指数和均匀度指数在7月上旬达到最大值。各林型丰富度指数均在6月上旬达最大值;白桦林、阔叶混交林、阔叶红松林多样性指数分别在6月上旬、6月下旬和7月上旬达到最大值;白桦林和阔叶红松林均匀度指数最大值均出现在7月上旬,阔叶混交林在9月上旬最高。褐绒绢金龟(Serica brunnea)和棕籽绒绢金龟(Sericania fuscolineata)5月下旬和6月上旬在阔叶红松林中的个体数显著高于阔叶混交林与白桦林;阔胫玛绢金龟(Maladera verticalis)6月上旬的个体数表现为阔叶红松林显著多于阔叶混交林,其他月份间无显著差异;黑斑锥胸叩甲(Ampedus sanguinolentus)5月上旬各林型间个体数差异显著,其他时间差异不显著;稚杆叩甲(Dalopius puerilis)个体数在不同林型、不同时间的差异均不显著。

In order to analyze the temporal dynamics of Saprophagous beetles in different forest types in Sanhu National Nature Reserve,a flapper flying trap was used to continuously collect Saprophagous beetles.The results showed that the number of species and individuals of Saprophagous beetles in Sanhu National Nature Reserve reached the maximum in early June and late May,respectively;The species richness index reached the maximum in early June,and diversity index and evenness index reached the maximum in early July.The richness index of each forest type reached the maximum in early June,and the diversity index of Betula platyphylla forest,broad-leaved mixed forest and broad-leaved Korean pine forest reached the maximum in early June,the last ten days of June and the first ten days of July,respectively;The maximum evenness index of Betula platyphylla forest and broad-leaved Korean pine forest appeared in the first ten days of July,and the evenness index of broad-leaved mixed forest was the highest in the first ten days of September.The number of Serica brunnea and the number of Sericania fuscolineata increased in late May and early June,the number of individuals in broad-leaved Korean pine forest was significantly higher than that in broad-leaved mixed forest and Betula platyphylla forest;In the first ten days of June,the number of Maladera verticalis Fairmaire in broad-leaved Korean pine forest was significantly higher than that in broad-leaved mixed forest,and there was no significant difference between other months.There were significant differences in the number of Ampedus sanguinolentus among different forest types in the first ten days of May,but there were no significant differences in other times.There was no significant difference in the individual number of Dalopius puerilis in different forest types at different times.