Santos R L, Forattini O P
Departamento de Epidemiologia da Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil.
Rev Saude Publica. 1999 Jun;33(3):309-13. doi: 10.1590/s0034-89101999000300013.
In order to evaluate the size of the Anopheles albitarsis s.l. population in the Ribeira Valley region of the south-eastern S. Paulo State, Brazil, marking-release-recapture experiments were carried out on the Experimental Farm in Pariquera-Açu county where an artificial irrigation system for the cultivation of rice has been installed. The experiments aimed at determining the vectorial capacity of this species.
During the summer (January, February and March), three marking-release-recapture experiments with field and laboratory reared populations were conducted to evaluate the population size. Simultaneous human bait collections were also carried out to estimate the human biting rate.
The population sizes of the three experiments were estimated to be 64,560, 50,503 and 22,684 mosquitoes. The bite/man/night rate varied from 41.5 to 524,5.
The results indicated high mosquito density in the summer which allow one to infer that, even though the survival rate is low, the number of remaining females is large enough to outlive the parasite's extrinsic developmental period.
为评估巴西圣保罗州东南部里贝拉河谷地区白跗按蚊复合种群的规模，在已安装水稻种植人工灌溉系统的帕里奎拉 - 阿苏县实验农场开展了标记 - 释放 - 重捕实验。这些实验旨在确定该物种的媒介能力。
在夏季（1月、2月和3月），对野外和实验室饲养的种群进行了三次标记 - 释放 - 重捕实验，以评估种群规模。同时还进行了人饵诱捕，以估计人叮咬率。
三次实验的种群规模估计分别为64,560只、50,503只和22,684只蚊子。每人每晚的叮咬率在41.5至524.5之间。
结果表明夏季蚊子密度很高，由此可以推断，尽管存活率较低，但存活的雌蚊数量足以使寄生虫的外在发育期结束。
