Spatio-temporal impacts of aerial adulticide applications on populations of West Nile virus vector mosquitoes.
Spatio-temporal impacts of aerial adulticide applications on populations of West Nile virus vector mosquitoes.
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DOI：
10.1186/s13071-021-04616-6
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发表时间：
2021-02-24
影响因子：
3.2
通讯作者：
Barker CM
中科院分区：
文献类型：
--
作者：
Holcomb KM;Reiner RC;Barker CM
空中施用针对成年蚊子的杀虫剂被广泛用于在流行病风险期间减少西尼罗河病毒向人类的传播。然而，这些处理后丰度减少的估计通常集中在单个事件上，依赖于预定义的、未经处理的控制地点，并且由于种群动态的随机变化和与处理无关的捕获成功，可能会有很大差异。为了克服这些局限性，我们开发了适用于2006年至2017年从加州萨克拉门托和约洛县的CO2诱捕器收集的蚊子监测数据的广义加法模型。该模型解释了预期的空间和时间趋势的丰富的成年雌性库蚊（Cx。）tarsalis和Cx.在没有空中喷洒的情况下，从模型中获得了空中喷洒事件后偏离基线丰度的估计值。处理后1周，拟除虫菊酯或除虫菊酯产品完全覆盖诱捕区域，Cx。尖音虫的丰度平均降低了52.4%（95%置信区间[CI]-65.6，-36.5%），而使用至少一种有机磷农药导致平均降低了76.2%（95% CI-82.8，-67.9%）。对于Cx。在治疗后1周，完全覆盖睑板，丰度降低了30.7%（95% CI-54.5，2.5%）。农药类别不是导致减少的重要因素。相比之下，连续三至四周重复喷洒导致Cx的估计值相似。pipiens和Cx的估计值稍小。跗骨空中杀成虫剂是有效的，以实现一个快速的短期减少的丰富的主要西尼罗河病毒载体，Cx。tarsalis和Cx. pipiens。在Cx中估计有较大幅度的降低。pipiens，可能是由于该物种的焦点分布。空中喷洒对Cx的影响。研究区域内存在的跗跖螨种群可能受到该物种的大扩散能力、种群规模和广阔的生产性幼虫栖息地的调节。我们的建模方法提供了一种新的方法来估计公共卫生农药对病媒种群的影响，使用常规收集的观测数据，并考虑时空趋势和气候和栖息地等背景因素。这种方法不需要预先选定的控制地点，并扩大了过去的研究，侧重于个别空中处理事件的影响。
Aerial applications of insecticides that target adult mosquitoes are widely used to reduce transmission of West Nile virus to humans during periods of epidemic risk. However, estimates of the reduction in abundance following these treatments typically focus on single events, rely on pre-defined, untreated control sites and can vary widely due to stochastic variation in population dynamics and trapping success unrelated to the treatment. To overcome these limitations, we developed generalized additive models fitted to mosquito surveillance data collected from CO2-baited traps in Sacramento and Yolo counties, California from 2006 to 2017. The models accounted for the expected spatial and temporal trends in the abundance of adult female Culex (Cx.) tarsalis and Cx. pipiens in the absence of aerial spraying. Estimates for the magnitude of deviation from baseline abundance following aerial spray events were obtained from the models. At 1-week post-treatment with full spatial coverage of the trapping area by pyrethroid or pyrethrin products, Cx. pipiens abundance was reduced by a mean of 52.4% (95% confidence intrval [CI] − 65.6, − 36.5%) while the use of at least one organophosphate pesticide resulted in a mean reduction of 76.2% (95% CI − 82.8, − 67.9%). For Cx. tarsalis, at 1-week post-treatment with full coverage there was a reduction in abundance of 30.7% (95% CI − 54.5, 2.5%). Pesticide class was not a significant factor contributing to the reduction. In comparison, repetition of spraying over three to four consecutive weeks resulted in similar estimates for Cx. pipiens and estimates of somewhat smaller magnitude for Cx. tarsalis. Aerial adulticides are effective for achieving a rapid short-term reduction of the abundance of the primary West Nile virus vectors, Cx. tarsalis and Cx. pipiens. A larger magnitude of reduction was estimated in Cx. pipiens, possibly due to the species’ focal distribution. Effects of aerial sprays on Cx. tarsalis populations are likely modulated by the species’ large dispersal ability, population sizes and vast productive larval habitat present in the study area. Our modeling approach provides a new way to estimate effects of public health pesticides on vector populations using routinely collected observational data and accounting for spatio-temporal trends and contextual factors like weather and habitat. This approach does not require pre-selected control sites and expands upon past studies that have focused on the effects of individual aerial treatment events.
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影响因子：
2.1
作者：
Barker CM;Eldridge BF;Reisen WK
通讯作者：
Reisen WK
影响因子：
6.8
作者：
AKAIKE, H
通讯作者：
AKAIKE, H
影响因子：
1.9
作者：
KENNEDY, JS
通讯作者：
KENNEDY, JS
DOI：
10.1080/00034983.1986.11811988
发表时间：
1986-02-01
影响因子：
--
作者：
HOLMES, PR
通讯作者：
HOLMES, PR
影响因子：
2.2
作者：
DETHIER, VG;BROWNE, LB;SMITH, CN
通讯作者：
SMITH, CN