Influence of light and kairomone baiting systems on trap collections of biting midges in southern Sweden
Influence of light and kairomone baiting systems on trap collections of biting midges in southern Sweden
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DOI：
10.1111/jvec.12372
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发表时间：
2020-06-01
影响因子：
1.7
通讯作者：
Ignell, Rickard
中科院分区：
文献类型：
--
作者：
Bray, Daniel;Isberg, Elin;Ignell, Rickard
有效的监测对于保护牲畜免受库蠓叮咬及其传播的病毒的侵害至关重要。本研究的目的是确定诱捕器中使用的诱饵系统（紫外线、白炽光、含有 CO2 的白炽光以及含有 CO2 和 1-octen-3-ol 的白炽光）如何影响对蠓种群丰度、胎次和昼夜活动的估计。这是通过在瑞典的三个栖息地进行的标准化诱捕协议实现的。与白炽灯诱捕器相比，紫外线诱捕器捕获了最多的库蠓属物种和更多的库蠓复合体雌性。用 CO2 加 1-octen-3-ol 为饵料的诱捕器比白炽灯诱捕器捕获更多的雌性 C. impunctatus。根据存在或不存在色素沉着的蠓比例估计，饵料类型对 C. obsoletus 胎次率没有一致的影响。诱捕器捕获量反映的蠓活动在相对于日落的 -3 小时和 +3 小时之间达到峰值，与日落之前相比，紫外线诱捕器在日落时和之后捕获的雌性 C. obsoletus Complex 和 C. impunctatus 明显更多。我们得出的结论是，即使使用相同的陷阱，诱饵系统也会影响叮蠓的收集。有效的监测可能需要不止一种诱饵类型和利它素来吸引不只以牛为食的物种。
Effective surveillance is essential for protecting livestock from Culicoides biting midges and the viruses they transmit. The objective of this study was to determine how the baiting system used in traps (UV, incandescent light, incandescent light with CO2, and incandescent light with CO2 and 1-octen-3-ol) influences estimates of midge population abundance, parity, and diel activity. This was achieved through a standardized trapping protocol conducted in three habitats in Sweden. UV light traps caught the most Culicoides species and more C. obsoletus complex females than incandescent light traps. Traps baited with CO2 plus 1-octen-3-ol caught more female C. impunctatus than incandescent light traps. No consistent effect of bait type was found on C. obsoletus parity rate, as estimated from the proportion of midges with presence or absence of pigmentation. Midge activity, as reflected by trap catches, peaked between -3 h and +3 h relative to sunset, with UV traps catching significantly more female C. obsoletus complex and C. impunctatus at and after sunset than before sunset. We conclude that baiting system can influence biting midge collections, even using identical traps. Effective surveillance may require more than one bait type and kairomones to attract species that do not feed exclusively on cattle.