Oliva Luciana O, La Corte Roseli, Santana Marcelo O, Albuquerque Cleide M R de
Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, Brazil.
Departamento de Morfologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe (UFS), São Cristóvão 49100-000, Brazil.
Insects. 2018 Sep 1;9(3):111. doi: 10.3390/insects9030111.
The strategy of to prolong embryonic viability by quiescence has severe implications for geographic expansion and maintenance of mosquito populations in areas under control measures. We evaluated the effects of quiescence on biological parameters directly or indirectly associated with population dynamics and vectorial capacity in populations of this mosquito species from two Brazilian municipalities characterized as dengue, chikungunya, and Zika transmission areas. Egg viability, initial hatching time, post-embryonic development time, adult emergence rate, sexual proportion, adult size, fecundity, and fertility were analyzed using eggs stored for 10, 40, 70, 100, 130, and 160 d. Quiescence time reduced overall egg viability and post-embryonic development time in both municipalities but was more costly in Aracaju (100 d, 8 d) than in Recife (130 d, 7.5 d). Emergence rates increased in Recife when the eggs were older, but not in Aracaju. Significant deviations in sexual proportion, with male predominance, were observed in both populations. Initial hatch, fecundity, fertility, and adult size did not significantly influence egg quiescence time. These results indicate intrinsic and differential characteristics for each population, suggesting a differential cost of quiescence for population dynamics parameters that can indirectly affect vectorial capacity and control measures.
通过静止来延长胚胎活力的策略对处于控制措施之下地区的蚊虫种群地理扩张和维持具有严重影响。我们评估了静止对来自巴西两个被划定为登革热、基孔肯雅热和寨卡病毒传播地区的该蚊虫种群中与种群动态和传播能力直接或间接相关的生物学参数的影响。使用储存10、40、70、100、130和160天的卵来分析卵的活力、初始孵化时间、胚后发育时间、成虫羽化率、性别比例、成虫大小、繁殖力和生育力。静止时间降低了两个城市的总体卵活力和胚后发育时间，但在阿拉卡茹（100天，8天）比在累西腓（130天，7.5天）代价更高。当卵较老时，累西腓的羽化率增加，但阿拉卡茹没有。在两个种群中均观察到性别比例存在显著偏差，雄性占优势。初始孵化、繁殖力、生育力和成虫大小对卵的静止时间没有显著影响。这些结果表明每个种群都有内在和差异特征，这表明静止对种群动态参数的代价存在差异，而这些参数可能间接影响传播能力和控制措施。
