论文部分内容阅读
以“捕食”、“寄生”、“其它”作用因子组建茶毛虫自然种群生命表 ,并采用控制指数 (IPC)法分析各作用因子对茶毛虫种群系统的控制作用 .这 3种作用因子对第 1- 4代茶毛虫的 IPC分别为 4 .2 0 6 5、3.2 345、1.4 32 4 ;7.80 0 8、4 .4 6 2 7、3.2 152 ;6 .32 10、4 .70 19、3.6 2 35;3.94 57、3.7858、1.36 0 0 .天敌是影响茶毛虫自然种群的重要因子 ,控制作用“捕食”大于“寄生”.不同温度下实验种群试验结果表明 ,温度与茶毛虫的卵孵化率 ,幼虫、蛹、成虫产卵前期存活率 ,成虫产卵量呈二次曲线关系 .卵孵化率模型为 Y =- 2 95.5115+31.0 2 54X -0 .6 2 54X2 ,幼虫存活率模型为 Y =- 12 2 .36 0 1+18.390 0 X - 0 .4 0 6 0 X2 ,蛹存活率模型为 Y =- 12 6 .3515+14.86 34X - 0 .3114X2 ,成虫产卵前期存活率模型为 Y =- 94 .382 9+16 .5889X - 0 .380 9X2 ,成虫产卵量模型为 Y =- 593.4 2 88+6 6 .30 86 X - 1.3886 X2 .
The life table of natural populations of the tea caterpillars was established with the predation, parasitism and other factors and the control index (IPC) The IPC of 1- 4 generations was 4.206 5, 3.245, 1.432 4, 7.80 0 8,4 .4 6 2 7, 3.2 152, 6.332 10,4 .70, 19.3.6 2 35; 3.94 57,3.7858,1.36 0 0. Natural enemies are important factors affecting the natural population of the tea caterpillar, control the “predation” is greater than “parasitism.” Experimental population at different temperatures test results show that the temperature and the egg crab hatching rate, Larvae, pupae and adults, the oviposition rate and adult fecundity were quadratic curve.The egg hatching rate model was Y = -295.5115 + 31.0 2 54X -0.62 54X2, the larval survival rate model was Y = - The model of survival rate of pupae was Y = - 12 6 .3515 + 14.86 34X - 0 .3114X2, and the pre - ovulation survival rate of adult was Y = - 12 2 .36 0 1 + 18.390 0 X - 0. 94 .382 9 + 16 .5889X - 0 .380 9X2, the fecundity model of adult was Y = - 593.4 2 88 + 6 6 .30 86 X - 1.3886 X2.