Demographic Attributes of Tribolium freemani HINTON : Coleoptera : Tenebrionidae

Open Access
Publisher Website
Google Scholar
Abstract
Demographic studies were carried out for Tribolium freemani HINTON on a wheat shorts or wheat flour medium under a laboratory condition (32.5.degree.C and 70% r.h.). The sex ratio determined at pupal stage was 1:1. The mean longevity of females and males was 329.1 and 346.7 days, respectively. The survivorship curves for both sexes were negatively skewed rectangular type. A female produced ca 1,000 eggs during her entire life. The intrinsic rate of increase (rm) was 0.073 per day, the net reproductive rate (R0) was 351 and the mean generation time (T) 80.6 days. T. freemani had a relatively low age specific reproductive value (vx) which was retained for a long period. Ecological and pest status of T. freemani, in comparison with other Tribolium species of stored-product pests, was discussed.

This publication has 18 references indexed in Scilit: