当前位置: X-MOL 学术Biocontrol › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The invasive stink bug Halyomorpha halys affects the reproductive success and the experience-mediated behavioural responses of the egg parasitoid Trissolcus basalis
BioControl ( IF 2.2 ) Pub Date : 2021-01-22 , DOI: 10.1007/s10526-020-10075-2
Ezio Peri , Maria Cristina Foti , Letizia Martorana , Antonino Cusumano , Stefano Colazza

Invasive species, because of their lack of co-evolutionary history with recipient communities, can act as “evolutionary traps” causing disconnects between natural enemy behavioural responses and the suitability of the invasive species as a prey/host resource. Invasion of exotic species in non-native environments may have several ecological effects, including consequences for the experience-mediated behavioural responses of indigenous foragers. Experience is usually thought to help resident species to buffer against negative impacts of new invasive species, including escaping from evolutionary traps. Here we hypothesized that the impact of foraging experience depends on whether an indigenous egg parasitoid can correctly assess the resource suitability of a new invasive species for offspring development. We showed that the invasive stink bug Halyomorpha halys acts as an evolutionary trap for the indigenous egg parasitoid Trissolcus basalis leading to unsuccessful development of ~ 95% of the eggs laid in this host species. In a mixed scenario in which the associated resident stink bug Nezara viridula co-occurs with the invasive H. halys, we showed that oviposition experience in the low quality invasive host induces in T. basalis similar responses to those of the associated host. These results suggest that foraging experience does not lead to avoidance of an evolutionary trap. We discuss parasitoid foraging experience and reproductive success in the light of the evolutionary trap framework with implication for biological control.



中文翻译:

侵袭性臭虫Halyomorpha halys影响繁殖成功和卵寄生的Trissolcus basalis的经验介导的行为反应

入侵物种由于缺乏与接受者社区的共同进化史,可以充当“进化陷阱”,导致天敌行为反应与入侵物种作为猎物/宿主资源的适宜性之间脱节。在非本地环境中外来物种的入侵可能会产生多种生态影响,包括对土著觅食者的经验介导的行为反应的影响。通常认为,经验可以帮助常驻物种缓冲新的入侵物种的负面影响,包括从进化陷阱中逃脱。在这里,我们假设觅食经验的影响取决于本地卵寄生卵能否正确评估新入侵物种对后代发育的资源适宜性。我们证明了侵入性臭虫Halyomorpha halys充当了原生卵寄生亚种Trissolcus basalis的进化陷阱,导致该宿主物种中约95%的卵发育不成功。在相关的常住臭虫Nezara viridula与入侵的H. halys共同发生的混合场景中,我们表明,低质量的入侵宿主中的产卵经验会在T. basalis中诱发与相关宿主相似的反应。这些结果表明,觅食经验不会导致避免进化陷阱。我们根据进化圈闭框架对寄生虫的觅食经验和繁殖成功进行了讨论,对生物学控制具有重要意义。

更新日期:2021-01-22
down
wechat
bug