PMID: 3729600Feb 1, 1986

Population dynamics of some Pakistan mosquitoes: temporal changes in reproductive status, age structure and survivorship of Anopheles culicifacies, An. stephensi and Culex tritaeniorhynchus

Annals of Tropical Medicine and Parasitology
W K ReisenT F Siddiqui

Abstract

The reproductive biology and age-structure of female Anopheles culicifacies, An. stephensi and Culex tritaeniorhynchus were studied at rural Punjabi villages near Lahore, Pakistan, during 1976-1980. Both Anopheles remained gonotrophically active throughout the year with blood-fed, gravid, parous and virgin females collected during all months. Culex tritaeniorhynchus populations bifurcated into reproductively active, non-overwintering and reproductively inactive, overwintering populations in October and/or November. Most female Cx. tritaeniorhynchus overwintered as inseminated nullipars with ovaries arrested at follicular State I; however, host-seeking and parous females were collected during every month of the year. Survivorship was calculated for each species by three methods and was negatively correlated with mean monthly ambient temperature. The ovarian tracheolation method provided inadequate estimates of parity for females collected at diurnal resting sites which refed the night of oviposition, but was suitable for Cx. tritaeniorhynchus females captured at bovid baits. The dilatation method of Polovodova was applied to all three species and yielded survivorship patterns which were constant with age and agreed well with a l...Continue Reading

Citations

Jan 1, 1978·Transactions of the Royal Society of Tropical Medicine and Hygiene·W K ReisenA Q Khan
Feb 1, 1986·Annals of Tropical Medicine and Parasitology·W K Reisen, M M Milby
Mar 1, 1974·The American Journal of Tropical Medicine and Hygiene·D E WeidhaasR Kaiser
Jan 1, 1982·Transactions of the Royal Society of Tropical Medicine and Hygiene·W K ReisenP F Boreham
Mar 31, 1980·Journal of Medical Entomology·C G HayesR Akhter

Related Concepts

Both Ovaries
Ovary
Reproduction
Pathological Dilatation
Seasonal Variation
Anopheles culicifacies
Malaria
Malaria Vaccines
Oviposition
Anopheles

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