Kriticos D J, De Barro P J, Yonow T, Ota N, Sutherst R W
CSIRO, GPO Box 1700, Canberra2601, Australia.
University of Queensland, Brisbane, QLD 4072, Australia.
Bull Entomol Res. 2020 Oct;110(5):567-576. doi: 10.1017/S0007485320000061. Epub 2020 Mar 12.
The Bemisia tabaci species complex is one of the most important pests of open field and protected cropping globally. Within this complex, one species (Middle East Asia Minor 1, B. tabaci MEAM1, formerly biotype B) has been especially problematic, invading widely and spreading a large variety of plant pathogens, and developing broad spectrum pesticide resistance. Here, we fit a CLIMEX model to the distribution records of B. tabaci MEAM1, using experimental observations to calibrate its temperature responses. In fitting the model, we consider the effects of irrigation and glasshouses in extending its potential range. The validated niche model estimates its potential distribution as being considerably broader than its present known distribution, especially in the Americas, Africa and Asia. The potential distribution of the fitted model encompasses the known distribution of B. tabaci sensu lato, highlighting the magnitude of the threat posed globally by this invasive pest species complex and the viruses it vectors to open field and protected agriculture.
烟粉虱复合种是全球露地和设施栽培中最重要的害虫之一。在这个复合种中，一个物种（中东-小亚细亚1型，烟粉虱MEAM1，以前称为生物型B）尤其成问题，它广泛入侵并传播多种植物病原体，还产生了广谱抗药性。在此，我们利用实验观测数据校准其温度响应，为烟粉虱MEAM1的分布记录拟合了一个CLIMEX模型。在拟合模型时，我们考虑了灌溉和温室对其潜在分布范围扩展的影响。经过验证的生态位模型估计，其潜在分布范围比目前已知的分布范围要广得多，尤其是在美洲、非洲和亚洲。拟合模型的潜在分布涵盖了烟粉虱广义种的已知分布，凸显了这种入侵害虫复合种及其传播的病毒对全球露地和设施农业构成的巨大威胁。
