CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ Montpellier, Montpellier, France.
AGAP, INRAE, CIRAD, Institut Agro, Univ Montpellier, San Giuliano, France.
Sci Rep. 2023 Feb 2;13(1):1901. doi: 10.1038/s41598-023-28601-4.
Philaenus spumarius (Ps) is considered the main insect vector of the bacterium Xylella fastidiosa (Xf) in Europe. As such, it is a key actor of the Xf pathosystem on which surveillance and management strategies could be implemented. Although research effort has increased in the past years, the ecological factors shaping Ps abundance and distribution across landscapes are still poorly known in most regions of Europe. We selected 64 plots of 500m in Corsican semi-natural habitats in which we sampled nymphs and adults of Ps during three years. While local or surrounding vegetation structure (low or high scrubland) had little effect on Ps abundance, we highlighted a positive relationship between Ps abundance and the density of Cistus monspeliensis in the plots. We also found larger populations of Ps in cooler and moister plots. The pattern of host association highlighted here is unique, which calls for more studies on the ecology of Ps in Europe, to help designing surveillance and management strategy for Xf.
沫蝉（Philaenus spumarius，简称 Ps）被认为是欧洲木质部难养菌（Xylella fastidiosa，简称 Xf）的主要昆虫媒介。因此，沫蝉是 Xf 病原系统中的关键因素，可针对其实施监测和管理策略。尽管近年来研究力度有所加大，但在欧洲大多数地区，影响沫蝉丰度和分布的生态因素仍知之甚少。我们在科西嘉岛半自然栖息地中选择了 64 个 500 米的样方，在三年内对沫蝉的若虫和成虫进行了采样。虽然局部或周围植被结构（低或高灌丛）对沫蝉丰度的影响很小，但我们发现样方中滨藜密度与沫蝉丰度之间呈正相关关系。我们还发现，在较凉爽和较湿润的样方中，沫蝉种群更大。这里突出显示的宿主关联模式是独特的，这需要对欧洲沫蝉的生态学进行更多的研究，以帮助设计 Xf 的监测和管理策略。
