Age-Stage, Two-Sex Life Tables of the Predatory Mite Oudemans at Different Temperatures.

Oudemans is a predatory mite inhabiting grain depots in China. The relationship between temperature and the population growth rate of is useful for predicting its population dynamics. Age-stage, two-sex life tables of the predator, , reared on were constructed under laboratory conditions at 22, 24, 28, 30, and 32 °C, 75% relative humidity, and a 0:24 h (L:D) photoperiod. Increasing temperature shortened the development time of the immature stages. The complete generation time of ranged from 11.10 d to 27.50 d. Life table parameters showed that 28 °C was the optimum temperature for the growth and development of ; populations could increase rapidly at this temperature. The highest net reproductive rate ( = 290.25) and highest fecundity (544.52) occurred at 28 °C. Temperature significantly affected the intrinsic rate of increase (r), fecundity, and finite rate of increase (λ). The values of age-specific fecundity (high to low) were 28 °C > 24 °C > 30 °C > 32 °C > 22 °C, while the values of age-stage-specific fecundity had the same trend.