不同温度下韭菜迟眼蕈蚊年龄-阶段两性实验种群生命表的构建  

Age-stage, two-sex life table of laboratory populations of Bradysia odoriphaga Yang et Zhang under different temperatures

作　　者：杨玉婷 梁玲[1,2] 史彩华 谢文[2] 张友军[2] YANG Yuting;LIANG Ling;SHI Caihua;XIE Wen;ZHANG Youjun(Yangtze University, Jingzhou 434025, China;Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences, Beijing 100081, China)

机构地区：[1]长江大学,荆州434025 [2]中国农业科学院蔬菜花卉研究所,北京100081

出　　处：《植物保护》2019年第1期51-57,共7页Plant Protection

基　　金：国家重点研发计划(2017YFD0201600;2017YFD0200600)

摘　　要：为了明确温度对韭菜迟眼蕈蚊生长发育和繁殖的影响,本文利用年龄-阶段两性种群生命表研究了该虫北京种群在4种温度(15、20、25和30℃)下的发育历期、存活率、繁殖力以及其他的种群参数。结果表明,韭菜迟眼蕈蚊各虫态发育历期以及产卵前期均随温度升高而缩短。在25℃条件下的单雌产卵量为85.34粒,显著高于其他3个温度。内禀增长率(r)和周限增长率(λ)随温度的升高而升高,平均世代周期(T)则出现相反的趋势,在25℃下净增殖率(R_0)最大,为45.77。韭菜迟眼蕈蚊在15～30℃范围内都能完成生长发育和繁殖,但25℃下种群存活率高、繁殖力大、世代周期较短,更适合种群暴发。In order to understand the effects of temperature on Bradysia odoriphaga Yang et Zhang, the age-stage two-sex life table was used to obtain the developmental duration, survival rate, fecundity and population parameters of Beijing population under four different temperatures (15, 20, 25 and 30℃). The results showed that the developmental duration and pre-oviposition duration of B. odoriphaga decreased with increasing temperature. The average number of eggs laid per female at 25℃ was 85.34, significantly higher than at the other three temperatures. The intrinsic rate of increase ( r ) and the finite rate of increase (λ) increased with increasing temperature; however, the mean generation time ( T ) had a different trend. The highest net reproductive value ( R 0 ) occurred at 25℃(45.77), significantly different from those at the other temperatures. These results indicated that B. odoriphaga was able to develop, survive and reproduce successfully across the entire temperature range from 15℃ to 30℃; however, under the condition of 25℃, with higher survival rate and fecundity and shorter generation, it was the most suitable temperature for the population growth of B. odoriphaga .

关 键 词：韭菜迟眼蕈蚊 温度 年龄阶段两性生命表 发育历期 种群参数 

分 类 号：S436.44[农业科学—农业昆虫与害虫防治]