Beserra Eduardo B, Castro Francisco P de
Depto. Biologia, Univ. Estadual da Paraíba, Campina Grande, PB, 58109-753, Brazil.
Neotrop Entomol. 2008 Jan-Feb;37(1):81-5. doi: 10.1590/s1519-566x2008000100012.
The present work aims at comparing the life cycle and estimating, based on life tables, the patterns of fertility of populations of A. aegypti (L.). The life cycles were studied at the temperature of 26 +/- 2 degrees C, and 12h photophase. The development period, egg viability and larval and pupal survival were evaluated daily as well as adult longevity and fecundity. Tables of fertility life were built. The durations of egg, larva and pupa stages varied from 3,9 to 4,5 days, from 6,4 to 8,3 days and from 2,0 to 2,5 days, respectively. The life table parameters for A. aegypti from Brejo dos Santos, Boqueirão, Itaporanga and Remígio, being, respectively, Ro = 104,03, 84,58, 113,37 and 91,18; rm = 0,92, 0,78, 0,89 and 0,88; and lambda = 2,50, 2,18, 2,43 and 2,41. The populations of Brejo dos Santos and Itaporanga had the biggest potential of growth in relation to the other populations. The results showed a differentiated pattern of growth and a biotical potential in the populations of A. aegypti originated from different municipal districts of the state of Paraíba.
本研究旨在比较埃及伊蚊种群的生命周期,并根据生命表估算其繁殖模式。在26±2℃的温度和12小时光照期条件下研究其生命周期。每天评估发育期、卵的活力以及幼虫和蛹的存活率,还有成虫的寿命和繁殖力。构建了繁殖生命表。卵、幼虫和蛹期的持续时间分别从3.9天至4.5天、6.4天至8.3天和2.0天至2.5天不等。来自布雷茹多斯桑托斯、博凯朗、伊塔波朗加和雷米吉奥的埃及伊蚊的生命表参数分别为:净增殖率(Ro)=104.03、84.58、113.37和91.18;内禀增长率(rm)=0.92、0.78、0.89和0.88;周限增长率(lambda)=2.50、2.18、2.43和2.41。与其他种群相比,布雷茹多斯桑托斯和伊塔波朗加的种群具有最大的增长潜力。结果表明,来自帕拉伊巴州不同市区的埃及伊蚊种群具有不同的增长模式和生物潜能。