文献类型：期刊文献

中文题名：3种竹笋夜蛾生态位及其种间竞争的研究

英文题名：Niche of Three Dominant Shoot-boring Noctuids andTheir Interspecific Competition

作者：黄琼瑶[1] 舒金平[1] 张爱良[2] 徐天森[1] 王浩杰[1]

第一作者：黄琼瑶

机构：[1]中国林业科学研究院亚热带林业研究所;[2]浙江省安吉县林业局

年份：2009

卷号：22

期号：5

起止页码：647-651

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家林业局重点科学技术研究计划专项(2006-41);国家"十一五"科技支撑项目(2006BAD19B01;2006BAD24B0705)

语种：中文

中文关键词：竹笋夜蛾;时间生态位;种间竞争;种群动态

外文关键词：shoot-boring noctuids; time niche; interspecies competition; population dynamics

分类号：S795;S436.44

摘要：竹笋夜蛾是竹林笋期最主要的害虫之一,应用昆虫种群生物学理论对早园竹、红竹和淡竹笋上3种夜蛾种群动态及生态位进行了研究。结果表明:淡竹笋夜蛾和笋秀夜蛾在种群数量上明显占优,前者发生高峰期集中于4月底至5月初,约7 d,后者集中于5月中旬,约10 d,二者在发生时间上相互分离;竹笋禾夜蛾发生数量少,危害相对较轻。淡竹笋夜蛾的时间生态位宽度在3种夜蛾中最小,竹笋禾夜蛾和淡竹笋夜蛾的生态位相似比例较高(>0.7),种间竞争系数高达0.907 3,说明二者在利用时间资源上发生重叠,二者存在明显资源竞争,最终导致淡竹笋夜蛾种群密度和数量比例显著高于竹笋禾夜蛾。竹笋禾夜蛾的生态位宽度和笋秀夜蛾接近。3种竹笋夜蛾共存同一株竹笋的情况不存在,即使是2种夜蛾共存于同一竹笋的几率也很低,平均值也仅为0.97%。
Shoot boring noctuids are the most important pests in bamboo shoot periods.In this paper,insect population biology theory was used to analyze quantitatively the niches of three dominant shoot boring noctuids.These noctuids were investigated on three bamboo species,Phyllostachys praecox,P.iridescins and P.glauca,respectively.It was found that the population density of Kumasia kumaso and Apamea apameoides were the main species.The former reached the peak from late-April to early-May,experiencing seven days or so,and the latter aggregated on mid-May,lasting about ten days.These two species occurred separately.Oligia vulgaris were captured fewer in the field and observed to be less infested than the previous mentioned two species.Analysis from ecological indices showed that temporal nich breadth of K.kumaso was the narrowest among three noctuids.The temporal niche similarity between Oligia vulgaris and Apamea kumaso was higher than 0.7 while the interspecific competition coefficient was 0.907 3.The results indicated that the competition between O.vulgaris and K.kumaso eventually resoulted in the significantly higher population density of K.kumaso than O.vulgaris.The temporal niche breath ralues of K.kumaso and A.apameoides was very similar.It had never observed that three species coexisted on the same shoots.The coexistence ratios of two of them was only 0.97%.