LABORATORY STUDY OF COMPETITION BETWEEN UNITED-STATES STRAINS OF AEDES-ALBOPICTUS AND AEDES-AEGYPTI (DIPTERA, CULICIDAE)
LABORATORY STUDY OF COMPETITION BETWEEN UNITED-STATES STRAINS OF AEDES-ALBOPICTUS AND AEDES-AEGYPTI (DIPTERA, CULICIDAE)
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DOI：
10.1093/jmedent/26.4.260
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发表时间：
1989-07-01
影响因子：
2.1
通讯作者：
ARROYO, DC
中科院分区：
文献类型：
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作者：
BLACK, WC;RAI, KS;ARROYO, DC
德克萨斯州休斯顿的除霾工人，新奥尔良，路易斯安那州，已经观察到，最近的介绍ofAedes albopictus（Skuse）已经伴随着下降和虚拟消失的Ae。埃及伊蚊（L.）这表明竞争位移，但矛盾的位移方向观察到的原生栖息地的Ae。白纹伊蚊该论文报告了一系列关于这两个物种的美国菌株之间竞争的实验室研究。幼虫的存活率，大小和发展时间进行了监测，在有限的和最佳的饮食下的两个物种的纯和混合培养物的密度增加。产卵偏好进行了检查，提供怀孕的女性杯含有第一或第四龄的任一物种。行为隔离研究，同时提供一个物种的处女女性两个物种的男性和监测求爱行为，以及产卵率，孵化率和胚胎。幼虫竞争的研究结果表明，种间竞争增加的发展时间只有轻微的，并没有影响Ae的生存。白纹伊蚊竞争增加了在Ae的生存。埃及人。这两个物种的大小受到种间竞争的影响，但效果的大小和方向是不一致的菌株和饮食，使两个物种出现一贯较大。产卵研究结果表明，Ae.埃及伊蚊，但在其他方面证明，这两个物种产卵，而不考虑产卵容器中幼虫的存在、年龄或物种。行为学分离试验表明，Ae. aegyptimales比Ae的雄性更具性攻击性。白纹伊蚊然而，阿。白纹伊蚊雌蚊与Ae.埃及伊蚊的产卵率没有下降，产卵的孵化率和胚胎形成率相等。总的来说，结果并不表明美国。白纹伊蚊种群在实验室中比Ae更具竞争力。埃及人。观察到的Ae下降的其他原因。埃及在美国进行了讨论。
Mosquito abatement workers in Houston, Tex., and New Orleans, La., have observed that the recent introduction ofAedes albopictus(Skuse) has been accompanied by a decline and virtual disappearance ofAe. aegypti(L.). This suggests competitive displacement but contradicts the direction of displacement observed in native habitats ofAe. albopictus. The paper reports a series of laboratory studies on competition between U.S. strains of the two species. Larval survivorship, size, and development time were monitored in increasing densities of pure and mixed cultures of the two species under limited and optimal diets. Oviposition preferences were examined by offering gravid females cups containing first or fourth instars of either species. Ethological isolation was studied by simultaneously offering virgin females of one species to males of both species and monitoring courtship behavior as well as rates of oviposition, percentage of hatch, and embryonation. The results of the larval competition studies suggest that interspecific competition increased development time only slightly and had no effect on survival ofAe. albopictus. Competition increased survival inAe. aegypti. Size of both species was influenced by interspecific competition, but the magnitude and direction of the effect was inconsistent between strains and diets such that neither species emerged consistently larger. The results of the oviposition study indicated a higher fecundity inAe. aegyptibut otherwise demonstrated that both species oviposit without regard to the presence, age, or species of larvae in the oviposition container. The ethological isolation tests demonstrated thatAe. aegyptimales were more sexually aggressive than males ofAe. albopictus. However,Ae. albopictusfemales placed with increasing densities ofAe. aegyptimales demonstrated no decrease in rates of oviposition, and eggs laid showed equal rates of hatch and embryonation. In general, the results do not suggest that the U.S.Ae. albopictuspopulation is inherently more competitive in the laboratory thanAe. aegypti. Other reasons for the observed decline inAe. aegyptiin the United States are discussed.