摘要
用正弦模型V(T)=A+Bsin(C0+C1eC3T+C2e-C3T)拟合了斜纹夜蛾(Spodopteralitura)发育与温度的关系,并用直接最优法估算了斜纹夜蛾不同发育阶段的温度阈值和所需热量.根据不同温度下的实验种群生命表资料,拟合了斜纹夜蛾不同发育阶段的存活率与温度关系的模型,卵、低龄幼虫、高龄幼虫、蛹的理论最适温度分别为26.7、24.7、24.9、25.8℃.本文研究了甘蓝、荷藕、山芋、大豆等不同食料条件下斜纹夜蛾的龄年发育结构的两性生命表参数,在25℃下,这4种食料条件下的内禀增长率分别为0.1836、0.1719、0.1778、0.1206.
The relationship between temperature and development of Spodoptera litura was simulated by the sine model V(T)=A+B sin( C 0+C 1e C 3T +C 2e -C 3T ),and the threshold temperature and thermal requirment for its development at different stages were estimated by the direct optimum method.The model for the relationship between temperature and survival rate was fitted by the experimental data .The theoretical optimum temperature for the development of eggs,young instar larvae,old instar larvae and pupae was 26.7,.24.7,24.9 and 25.8℃,respectively.The life table parameters under different feed conditions (cabbage,lotus,sweet potato,soybean leaves)were estimated by the method of bisexual life table with age structure.At temperature 25℃,the intrinsic rates of increase under the four different feed conidtions were 0.1836,0.1719,0.1778 and 0.1206,respectively.
出处
《应用生态学报》
CAS
CSCD
2000年第1期111-114,共4页
Chinese Journal of Applied Ecology
基金
江苏省"九.五"重点科技攻关项目!(BE96358)
关键词
斜纹夜蛾
温度
食料
种群生命表
监测
农业害虫
Spodoptera litura , Temperature, Food, Sine model,Life table parameter.
