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

William Reisen, F. Mahmood, S. Niaz, K. Azra, T. Parveen, R. Mukhtar, Y. Aslam, T. F. Siddiqui

Research output: Contribution to journalArticle

9 Citations (Scopus)

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 log-linear model. Anopheles culicifacies survived longer than did An. stephensi and thus was considered a better vector of malaria. Age-specific survivorship tables were constructed for all three species for those periods of the year when the gonotrophic rhythm was constant and generations were overlapping.

Original languageEnglish (US)
Pages (from-to)77-95
Number of pages19
JournalAnnals of Tropical Medicine and Parasitology
Volume80
Issue number1
DOIs
StatePublished - Jan 1 1986
Externally publishedYes

Fingerprint

Culex
Anopheles
Pakistan
Population Dynamics
Culicidae
Survival Rate
Oviposition
Parity
Population
Malaria
Dilatation
Ovary
Linear Models
Temperature

ASJC Scopus subject areas

  • Parasitology
  • Infectious Diseases

Cite this

Population dynamics of some Pakistan mosquitoes : temporal changes in reproductive status, age structure and survivorship of Anopheles culicifacies, An. stephensi and Culex tritaeniorhynchus. / Reisen, William; Mahmood, F.; Niaz, S.; Azra, K.; Parveen, T.; Mukhtar, R.; Aslam, Y.; Siddiqui, T. F.

In: Annals of Tropical Medicine and Parasitology, Vol. 80, No. 1, 01.01.1986, p. 77-95.

Research output: Contribution to journalArticle

@article{444bad5cf8f140b58540efe9cfab7f7f,
title = "Population dynamics of some Pakistan mosquitoes: temporal changes in reproductive status, age structure and survivorship of Anopheles culicifacies, An. stephensi and Culex tritaeniorhynchus.",
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 log-linear model. Anopheles culicifacies survived longer than did An. stephensi and thus was considered a better vector of malaria. Age-specific survivorship tables were constructed for all three species for those periods of the year when the gonotrophic rhythm was constant and generations were overlapping.",
author = "William Reisen and F. Mahmood and S. Niaz and K. Azra and T. Parveen and R. Mukhtar and Y. Aslam and Siddiqui, {T. F.}",
year = "1986",
month = "1",
day = "1",
doi = "10.1080/00034983.1986.11811986",
language = "English (US)",
volume = "80",
pages = "77--95",
journal = "Pathogens and Global Health",
issn = "2047-7724",
publisher = "Maney Publishing",
number = "1",

}

TY - JOUR

T1 - Population dynamics of some Pakistan mosquitoes

T2 - temporal changes in reproductive status, age structure and survivorship of Anopheles culicifacies, An. stephensi and Culex tritaeniorhynchus.

AU - Reisen, William

AU - Mahmood, F.

AU - Niaz, S.

AU - Azra, K.

AU - Parveen, T.

AU - Mukhtar, R.

AU - Aslam, Y.

AU - Siddiqui, T. F.

PY - 1986/1/1

Y1 - 1986/1/1

N2 - 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 log-linear model. Anopheles culicifacies survived longer than did An. stephensi and thus was considered a better vector of malaria. Age-specific survivorship tables were constructed for all three species for those periods of the year when the gonotrophic rhythm was constant and generations were overlapping.

AB - 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 log-linear model. Anopheles culicifacies survived longer than did An. stephensi and thus was considered a better vector of malaria. Age-specific survivorship tables were constructed for all three species for those periods of the year when the gonotrophic rhythm was constant and generations were overlapping.

UR - http://www.scopus.com/inward/record.url?scp=0022660050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022660050&partnerID=8YFLogxK

U2 - 10.1080/00034983.1986.11811986

DO - 10.1080/00034983.1986.11811986

M3 - Article

C2 - 3729600

AN - SCOPUS:0022660050

VL - 80

SP - 77

EP - 95

JO - Pathogens and Global Health

JF - Pathogens and Global Health

SN - 2047-7724

IS - 1

ER -