The influence of prior experience on preference and performance of a cryptoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) on beetle hosts
The influence of prior experience on preference and performance of a cryptoparasitoid Scleroderma guani (Hymenoptera: Bethylidae) on beetle hosts
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先前经验对隐寄生蜂硬皮虫（膜翅目：甲虫科）对甲虫宿主的偏好和性能的影响
DOI：
10.1111/j.1365-2311.2009.01120.x
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发表时间：
2009-12-01
影响因子：
2.2
通讯作者：
Sun, Jianghua
中科院分区：
文献类型：
--
作者：
Li, Li;Miller, Daniel R.;Sun, Jianghua
1. 许多研究报道了学习或经验对寄生蜂寄主偏好和定位的影响。然而，在宿主-寄生虫的相互作用中，很少对想象前和成人经验对随后的宿主偏好和成人/后代表现的综合进行测试。我们提供的直接证据表明，这两种经验影响寄主偏好和相关的适合度在多食性寄生虫，瓜硬皮病。在天牛科（天牛科）和野田鼠（天牛科）上饲养2个寄生蜂。2 .对两个蚁群的个体分别给予1代的换主经验（预想象经验）和1代的产卵经验（成虫经验）。雌性瓜硬皮病表明，它们的经历决定了成虫的行为反应及其对宿主的后续表现。当雌性遇到与母宿主相似的宿主时，它们可以最大限度地提高成年适应性（繁殖力和寿命）和后代适应性（存活率和性别比例）。寄主选择的行为可塑性受到成虫经验的影响，从而改善成虫的取食和产卵行为，进而改变成虫的繁殖力和后代的性别比。产卵偏好与成虫繁殖力呈正相关。结果表明，猪链球菌的偏好与表现呈正相关关系。这很可能是由于多代对母体宿主的适应。然而，成虫对宿主提供的线索的觅食潜力可能是由经验诱导的学习过程而不是经过许多代形成的自然选择过程迅速驱动的。
1. Numerous studies have reported the effects of learning or experience on parasitoid host preference and location. However, the integration of pre-imaginal and adult experiences on the subsequent host preference and adult/offspring performance has been rarely tested in host-parasite interactions.2. We present direct evidence that theses two kinds of experiences affect host preference and related fitness in the polyphagous parasitoid, Scleroderma guani. Two colonies of parasitoids were reared on Monochamus alternatus and Saperda populnea (Cerambycidae: Lamiinae). Individuals from the two colonies were given host-switching experience for one generation (pre-imaginal experience) while other individuals were given prior ovipositing experience on the two species, respectively (adult experience).3. Scleroderma guani females demonstrated that their experiences determined adult behavioural responses and their subsequent performance to hosts. Females maximised both adult fitness (fecundity and longevity) and offspring fitness (survival and sex ratio) when they encountered hosts similar to their maternal hosts. Behavioural plasticity in host choice was affected by adult experience, resulting in improved adult feeding and ovipositing behaviour and further modifying adult fecundity and the offspring sex ratio. There was a positive correlation between oviposition preference and adult fecundity.4. The results indicated that S. guani exhibited positive preference-performance correlations. This is most likely due to an adaptation to maternal hosts over multiple generations. However, foraging potential of adults to available cues from hosts may be driven quickly by an experience-induced learning process rather than by natural selection processes shaped over many generations.