Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Age-Stage, Two-Sex Life Tables of the Predatory Mite Cheyletus Malaccensis Oudemans at Different Temperatures
Insects ( IF 3 ) Pub Date : 2020-03-12 , DOI: 10.3390/insects11030181 Weiwei Sun , Miao Cui , Liyuan Xia , Qing Yu , Yang Cao , Yi Wu
Insects ( IF 3 ) Pub Date : 2020-03-12 , DOI: 10.3390/insects11030181 Weiwei Sun , Miao Cui , Liyuan Xia , Qing Yu , Yang Cao , Yi Wu
Cheyletus malaccensis Oudemans is a predatory mite inhabiting grain depots in China. The relationship between temperature and the population growth rate of C. malaccensis is useful for predicting its population dynamics. Age-stage, two-sex life tables of the predator, C. malaccensis, reared on Acarus siro 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 C. malaccensis 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 C. malaccensis; populations could increase rapidly at this temperature. The highest net reproductive rate (R0 = 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.
更新日期：2020-04-20
京公网安备 11010802027423号