Cuckoo wasps manipulate foraging and resting activities in their hosts
Cuckoo wasps manipulate foraging and resting activities in their hosts
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杜鹃黄蜂操纵宿主的觅食和休息活动
DOI：
10.1007/s00265-014-1783-y
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发表时间：
2014
影响因子：
2.3
通讯作者：
M. Lorenzi
中科院分区：
文献类型：
--
作者：
S. Fucini;A. Uboni;A. Uboni;M. Lorenzi
寄生虫引起的宿主行为的改变已在大量的类群中报道。然而，有些寄生虫比其他寄生虫更善于利用宿主提供的资源。到目前为止，我们的理解在何种程度上，一些专性寄生虫利用社会昆虫群体仍然是有限的。在这项研究中，我们研究了寄生虫介导的行为改变的专性社会寄生虫Polistes atrimandibularis寄生的大黄蜂寄生通过比较主机的女性活动，寄生和非寄生殖民地。寄主foundresses觅食更多，休息少，在寄生比非寄生殖民地（控制在巢中的幼虫数量，一天中的时间，和一天的季节）。接下来，我们使用短期寄生虫清除实验来研究社会寄生虫如何操纵它们的宿主。我们发现，被寄生的主机觅食更多，休息少时，社会寄生虫的巢，而不是在他们删除后，我们测试了哪种寄生虫和主机之间发生的相互作用。三颚拟单胞菌寄生虫可能主要使用非攻击性的相互作用（如触角和滋养）来操纵宿主活动，而不是像其他寄生虫那样使用视觉，听觉或化学信号。
Parasite-induced alterations in host behaviour have been reported in a large number of taxa. However, some parasites are better than others to exploit the resources offered by their hosts. To date, our understanding of the extent to which some obligate parasites exploit social insect colonies is still limited. In this study, we examined parasite-mediated behavioural alterations of Polistes biglumis wasps parasitized by the obligate social parasite Polistes atrimandibularis by comparing host female-activity in parasitized and non-parasitized colonies. Host foundresses foraged more and rested less in parasitized than in non-parasitized colonies (controlling for the number of larvae in the nest, the time of day, and the day in the season). Next, we used short-term parasite removal experiments to investigate how social parasites manipulate their hosts. We found that parasitized hosts foraged more and rested less when social parasites were on the nest rather than after their removal, and we tested which kind of interactions occurred between parasites and hosts. P. atrimandibularis parasites may use mainly non-aggressive interactions (such as antennation and trophallaxis) to manipulate host activities, rather than visual, acoustic or chemical signals as other parasites do.