Abstract
The age-specific and time-specific life table of experimental population Liposcelis bostrychophila was established at 8 different temperatures (17.5-35 degrees C) and 5 different humidities (50-90% RH). The relations between population dynamics and temperature or humidity were discussed with Morris model and Weibull frequency distribution. The results indicated that the effect of temperature and humidity on survivorship was the most important factor to population trend index (I). Under suitable range of temperature and humidity, the population survival curve belonged to Deevey I; while under improper conditions, it belonged to Deevey III. Theoretically, finite increase rate (lambda) had the highest value 1.0628/day at 30.63 degrees C. The optimum range of temperature and relative humidity for its development and reproduction was estimated at 28-30 degrees C and 80% +/- RH, respectively.
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