Covert deformed wing virus infections have long-term deleterious effects on honeybee foraging and survival
Covert deformed wing virus infections have long-term deleterious effects on honeybee foraging and survival
复制标题
DOI：
10.1098/rspb.2016.2149
复制
发表时间：
2017-02-08
影响因子：
4.7
通讯作者：
Wenseleers, Tom
中科院分区：
文献类型：
--
作者：
Benaets, Kristof;Van Geystelen, Anneleen;Wenseleers, Tom
几项研究表明，隐蔽的压力源可能导致蜂群的减少。本文提供了一个新的案例研究，并利用射频识别跟踪技术表明，在自然觅食条件下，成年工蜂隐性变形翼病毒（DWV）感染严重影响了长期觅食和生存。特别是，我们的实验表明，注射低剂量DWV的成年工蚁死亡率增加，DWV导致工蚁过早开始觅食，并且该病毒减少了工蚁作为觅食者的总活动时间。总之，这些结果表明，隐蔽的DWV感染对蜜蜂的觅食和生存有强烈的有害影响。这些结果与之前的研究一致，即DWV是欧洲和美国蜜蜂数量持续下降的重要原因。总的来说，我们的研究强调了隐蔽病原体感染对蜜蜂个体和群体水平表现的强烈影响。
Several studies have suggested that covert stressors can contribute to bee colony declines. Here we provide a novel case study and show using radio-frequency identification tracking technology that covert deformed wing virus (DWV) infections in adult honeybee workers seriously impact long-term foraging and survival under natural foraging conditions. In particular, our experiments show that adult workers injected with low doses of DWV experienced increased mortality rates, that DWV caused workers to start foraging at a premature age, and that the virus reduced the workers' total activity span as foragers. Altogether, these results demonstrate that covert DWV infections have strongly deleterious effects on honeybee foraging and survival. These results are consistent with previous studies that suggested DWV to be an important contributor to the ongoing bee declines in Europe and the USA. Overall, our study underlines the strong impact that covert pathogen infections can have on individual and group-level performance in bees.