The role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest
Krsiak, B.,Slovenska Akademia Vied, Zvolen (Slovak Republic). Ustav Ekologie Lesa | Zach, P.,Slovenska Akademia Vied, Zvolen (Slovak Republic). Ustav Ekologie Lesa | Kulfan, J.,Slovenska Akademia Vied, Zvolen (Slovak Republic). Ustav Ekologie Lesa
The bark beetle Hylastes cunicularius was studied in the Tatra Mountains, West Carpathians (Slovak Republic), to clarify its role in transferring phoretic uropodine mites during dispersal in a mountain spruce forest. Emphasis was placed on the proportion of beetles vectoring deutonymphs of uropodine mites, and on assemblage structure, frequency distribution and placement of uropodids on the bark beetle vector. A total of 3,302 adults of H. cunicularius were caught into flight interception traps, of which 529 (16%) vectored a total of 1,020 individuals and four species of uropodine mites: Trichouropoda pecinai, Trichouropoda obscura, Uroobovella vinicolora, Uroobovella ipidis. The uropodine mite assemblage was dominated by T. pecinai, which represented 94.6% of the collected mite individuals. T. pecinai and U. vinicolora were documented as new associates of H. cunicularius. Frequency distribution of uropodids on the beetle was L-shaped. The number of vectored mites and the number of dispersing individuals of H. cunicularius were positively correlated.
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