Phylogenetic signals in pest abundance and distribution range of spider mites

Abstract

BackgroundAttributes of pest species like host range are frequently reported as being evolutionarily constrained and showing phylogenetic signal. Because these attributes in turn could influence the abundance and impact of species, phylogenetic information could be useful in predicting the likely status of pests. In this study, we used regional (China) and global datasets to investigate phylogenetic patterns in occurrence patterns and host ranges of spider mites, which constitute a pest group of many cropping systems worldwide.ResultsWe found significant phylogenetic signal in relative abundance and distribution range both at the regional and global scales. Relative abundance and range size of spider mites were positively correlated with host range, although these correlations became weaker after controlling for phylogeny.ConclusionsThe results suggest that pest impacts are evolutionarily constrained. Information that is easily obtainable – including the number of known hosts and phylogenetic position of the mites – could therefore be useful in predicting future pest risk of species.

Phylogenetic-Related Divergence in Perceiving Suitable Host Plants among Five Spider Mites Species (Acari: Tetranychidae)

“…For instance, the two-spotted spider mite Tetranychus urticae has been considered one of the most destructive agricultural pests in the world [ 1 ] and can feed on more than 1150 plant species from 140 different plant families [ 2 ]. Additionally, several other species also commonly occur in the field, such as Tetranychus kanzawai , Tetranychus truncatus , Tetranychus pueraricola, and Tetranychus evansi [ 3 , 4 , 5 , 6 , 7 ].…”