Effects of Low Temperature Induction on Survival Rate of Pardosa astrigera L. Koch
In order to explore the relationship between population dynamics of Pardosa astrigera L. Koch and low temperature, the effects of low temperature induction on the survival rate of P. astrigera were studied. The male and female adult spiders were exposed to low temperature of -4.0 ℃, -3.5 ℃, -3.0 ℃, -2.5 ℃, -2.0 ℃,-1.5 ℃, -1.0 ℃, -0.5 ℃ and0 % for five minutes, and were induced at 0 ℃, 2 ℃, 4 ℃, 6 ℃ and 8 ℃ for 2 hours. The results showed that the survival rate of adult spider increased with the increasing of temperature at -4 -0 ℃, and that of male was significantly higher than that of female at the same temperature with the same treatment time. After induction for 2 hour at 0 - 8 ℃, the survival rate of male and female adult spiders followed parabola, which was the highest after induction at 4 ℃, and the survival rate of male was higher than that of female at the same temperature induced same time. It coud be concluded that the cold tolerance of male was significantly higher than that of femal.
Pardosa astrigera L. KochLow temperatureSurvival rateInduction
NETL
NSTL
万方数据
维普
