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不同温度下多异瓢虫实验种群生命表
Life tables of laboratory population of Hippodamia variegate at different temperatures.
岳 健1,何 嘉2,张 蓉2**,贺达汉1
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DOI:
作者单位:1宁夏大学农学院 银川 750021; 2宁夏农林科学院植物保护研究所 银川 750002
中文关键词:多异瓢虫, 实验种群, 温度, 生命表
英文关键词:Hippodamia variegate, laboratory population, temperature, life table
中文摘要:


      完成多异瓢虫Hippodamia variegata (Goeze)在13,17,21,25,29和33℃ 6个温度处理下的繁殖特征生命表。结果表明:各虫态的发育速率随温度的升高而加快,在13℃下世代的发育历期最长为62.23 d,而33℃时仅为10.92 d;成虫寿命随温度升高而逐渐缩短,13℃时最长,为71.39 d, 33℃时最短,为11.95 d;各温度下净生殖率25℃时最大为31.42,13℃时最小为1.40;内禀增长力33℃时最高为0.21,13℃时最小为3.87×10-3;各温度下的稳定年龄组配29℃下最稳定,具体分布为:卵,36.54%;1龄,22.95%;2龄,7.56%;3龄,11.05%;4龄,10.11%;蛹,5.65%;成虫,6.13%。

英文摘要:

       Life tables of laboratory population of Hippodamia variegate (Goeze) were constructed at six temperatures. The results showed that the developmental rate increased with the temperature increasing from 13℃ to 33℃。The longest duration of one generation was 62.23 days observed at 13℃, and the shortest was 10.92 days at 33℃. The adult lifespan was shortened with temperature increasing. The longest lifespan was 71.39 days at 13℃, while the shortest was 11.95 days at 33℃. Net reproduction rate (R0) of 25℃ was the biggest one (31.42), and the smallest one was 1.40 at 13℃.The highest intrinsic growth rate (rm) was 0.21 at 33℃, while the lowest was 3.87×10-3 at 13℃. Stable age distribution at 29℃ was most stable, in which cluded 36.54% egg, 22.95% 1st instar, 7.56% 2nd instar, 11.05% 3rd instar, 10.11% 4th instar, 5.65% pupa, and 6.13% adult.

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