POPULATION ECOLOGY AND DISPERSAL OF CULEX TARSALIS (DIPTERA, CULICIDAE) IN THE COACHELLA VALLEY OF CALIFORNIA
POPULATION ECOLOGY AND DISPERSAL OF CULEX TARSALIS (DIPTERA, CULICIDAE) IN THE COACHELLA VALLEY OF CALIFORNIA
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DOI：
10.1093/jmedent/32.4.490
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发表时间：
1995-07-01
影响因子：
2.1
通讯作者：
LOTHROP, HD
中科院分区：
文献类型：
--
作者：
REISEN, WK;LOTHROP, HD
1993 年，每两个月进行 5 次实验，55,548 只寻找寄主的雌性跗库蚊和 22,563 只新出现的雌性跗库蚊被标记上荧光粉尘，并被释放到索尔顿海沿岸的沼泽地。总体而言，释放后连续 7-12 天，在干冰诱饵陷阱和步入式红箱中重新捕获了 3,758 只（6.7%）寻找寄主的雌性和 37 只（0.2%）新出现的雌性。新出现的雌性的重新捕获率出乎意料地低，不足以进行进一步分析。在研究区域内收集的寻找寄主的雌性的重新捕获率和分散性与在释放地点东南 16 公里处收集的寻找寄主的雌性没有不同，这表明 Cx, tarsalis 可能不依赖记忆的飞行路径。寻找寄主的雌性的损失率很高，因为许多雌性在寻找寄主的飞行过程中很容易从沼泽研究区域散开。种群规模估计范围为 2 月份的 914,000 只到 7 月份的 4,000 只，与二氧化碳捕集器的捕获量密切相关。被释放的雌性的翅膀长度和果糖阳性率与重新捕获时的年龄或分散距离无关。被释放的雌性的胎次随着时间的推移而增加，但在所有重新捕获期间都收集了未产仔，这可能表明血粉获取的困难。群体扩散速度约为每天 0.2 公里，足以在科切拉山谷南部传播虫媒病毒。
During 5 bimonthly experiments in 1993, 55,548 host-seeking and 22,563 newly emerged Culex tarsalis Coquillett females were marked with fluorescent dust and released at a marsh along the Salton Sea. Overall, 3,758 (6.7%) host-seeking and 37 (0.2%) newly emerged females were recaptured in dry ice-baited traps and walk-in red boxes operated for 7-12 consecutive days after release. The recapture of newly emerged females was unexpectedly low and insufficient for further analysis. The recapture rates and dispersiveness of females collected host-seeking within the study area were not different from females collected host-seeking at a site 16 km SE of the release site, indicating that Cx, tarsalis may not rely on memorized flight paths. Loss rates of host-seeking females were high, because many females readily dispersed from the marsh study area during host-seeking flights. Estimates of population size ranged from 914,000 in February to 4,000 in July and were well correlated with catch size in CO2 traps. The wing length and fructose positivity rate of released females did not vi as a function of age or dispersal distance at recapture. Parity of released females increased over time, but nullipars were collected during all recapture periods, perhaps indicating difficulty in blood meal acquisition. Cohort dispersal progressed at the rate of about 0.2 km/d and was sufficient to disseminate arboviruses in the southern Coachella Valley.