Intrinsic Rate of Natural Increase of Five Species of Ischnoceran Lice (Insecta: Phthiraptera) from India
2009
Saxena, Arun Kumar | Gupta, Nidhi | Kumar, Sandeep | Khan, Vikram | Arya, Gaurav | Saxena, Smiriti
Five ischnoceran lice (Brueelia cyclothorax, Sturnidoecus hannoo, Neopsittaconirmus elbeli, Columbicola columbae and Anaticola crassicornis) infesting the house sparrow, common myna, Indian parakeet, domestic pigeon and mallard duck, were reared in vitro conditions (35 ± 1°C, 75–82% RH, at a feather diet), to record the incubation period, adult longevity and daily egg rate. The data obtained were used to construct the life table and to determine the intrinsic rate of natural increase (r). The values of r of aforesaid species were 0.032, 0.049, 0.050, 0.053 and 0.074 female per day, respectively. Likewise, the doubling time of the population differed, as follows, 21.35, 14.21, 13.93, 14.2 and 9.01 days, respectively. The results indicate that reproductive potentials of different phthirapteran species exhibit considerable variation.
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