Gonotrophic cycle and survivorship of Anopheles albimanus (Diptera: Culicidae) in southern Mexico.
The length of the gonotrophic cycle of Anopheles albimanus was estimated by 12 mark-release-recapture studies conducted in corrals in southern Mexico from 1987 to 1990. The initial set of three mark-release studies indicated that the gonotrophic cycle takes at least 4 d based on the day when gravid mosquitoes were first recaptured. However, in later experiments, mosquitoes recaptured seeking hosts at 48 h after release were in Sella's and Christophers' stages I and II, but parity rates had nearly doubled, indicating that eggs may have developed in less than 48 h and that mosquitoes returned to refeed immediately following oviposition. Two gonotrophic cycles probably exist, one of 48 h dominated by parous mosquitoes and one of 4 d comprised of nulliparous, pregravid mosquitoes. Daily survivorship was estimated by regression from the decrease in the daily recapture rate (0.46-0.68) was less than that estimated by the parity rates (0.67-0.69), with no important differences found between wet and dry seasons. Estimates of the probability of a mosquito living long enough to transmit malaria were 2% (range, 1.8-2.5%).
Rodriguez
M H
MH
Malaria Research Center, Tapachula, Chiapas, Mexico.
Bown
D N
DN
Arredondo-Jimenez
J I
JI
Villarreal
C
C
Loyola
E G
EG
Frederickson
C E
CE
D000818:Animals; D000852:Anopheles / Q000502:physiology*; D005260:Female; D007303:Insect Vectors / Q000502:physiology*; D008288:Malaria / Q000635:transmission*; D008800:Mexico; D012044:Regression Analysis; D012621:Seasons