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菜粉蝶在不同温度下的实验种群生命表

作  者:
徐世才;延志连;贺民;张维;王璐
单  位:
延安大学附中;延安大学生命科学学院
关键词:
菜粉蝶;温度;实验种群;生命表
摘  要:
组建了菜粉蝶(Pieris rapae L.)在16、19、22、25℃和28℃下的实验种群生命表。结果表明:各虫态的发育速率随温度的升高而变快,且在16~28℃内,菜粉蝶的各虫态均能正常发育。在16℃下世代的发育历期最长为49.52 d,而28℃时仅为20.38 d。成虫寿命随温度升高而逐渐缩短,16℃时最长为8.62 d,在28℃下最短为3.01 d;单雌产卵量在25℃时最高,平均为120.13粒,16℃和28℃最低,平均为110.01粒。在恒温22~28℃内,种群趋势指数较高,这说明在该温区较适合于菜粉蝶的生长发育。
译  名:
Life table of the laboratory populations of Pieris rapae under different temperatures
作  者:
Xu Shicai1,Yan Zhilian1,He Min2,Zhang Wei1,Wang Lu1(1.School of Life Sciences,Yan'an University,Yan'an 716000,China;2.High School of Yan'an University,Yan'an 716000,China)
关键词:
Pieris rapae;temperature;laboratory populations;life table
摘  要:
Life table of the laboratory populations of Pieris rapae L.were constructed at five different temperatures(16 ℃,19 ℃,22 ℃,25 ℃ and 28 ℃).The results showed that this insect could normally develop between 16 ℃ and 28 ℃.Their developmental rate increased with increasing temperature.The longest immature duration was 49.52 d at 16 ℃,and the shortest was 20.38 d at 28 ℃.The longest adult longevity was 8.62 d at 16 ℃,while the shortest was 3.01 d at 28 ℃.The maximum fecundity was 120.13 per female at 25 ℃,while the least was 110.01 at 16 ℃ and 28 ℃.The suitable temperature range for this insect was 22-28 ℃,at which it had higher population increase index.

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