Overview of the Current Secondary Range of the Four-Eyed Fir Bark Beetle (Polygraphus proximus Blandford) in the Russian Federation

Pub Date : 2024-06-13 DOI:10.1134/s2075111724700061

S. A. Krivets, I. A. Kerchev, E. M. Bisirova, E. S. Volkova, S. A. Astapenko, A. A. Efremenko, A. Yu. Kosilov, P. P. Kudryavtsev, Yu. R. Kuznetzova, V. I. Ponomarev, A. B. Potapkin, E. G. Taraskin, V. V. Titova, A. O. Shilonosov, Yu. N. Baranchikov

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Abstract

Current data on the existing secondary range of the four-eyed fir bark beetle Polygraphus proximus in Russia, a dangerous invasive pest of fir stands, are presented. The alien species was found on the territory of 18 administrative subjects of the Russian Federation, from Moscow and Moscow oblast in the west to the Irkutsk oblast and the Republic of Buryatia in the east. Within 17 years since the species was first found outside its Far Eastern natural range, it has spread widely in Western and Central Siberia and in recent years in the Pre-Urals region and the Urals, from the middle taiga to forest steppe on the plains to the upper limit of Siberian fir in the mountains. It forms outbreak foci in exploitative forests, in specially protected natural areas, and in artificial fir plantations of settlements. Taking into account the peculiarities of host plant growth, the time of detection, and sources of invasive population formation, the structure of secondary range is developed, and the characteristics of modern distribution of the four-eyed fir bark beetle and the forecast of further expansion of its secondary range are given.

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俄罗斯联邦目前的四眼杉木皮甲虫（Polygraphus proximus Blandford）次生分布区概览

摘要介绍了俄罗斯现有的四眼杉树皮甲虫（Polygraphus proximus）次生分布区的最新数据，这是一种入侵杉林的危险害虫。从西部的莫斯科和莫斯科州到东部的伊尔库茨克州和布里亚特共和国，在俄罗斯联邦的 18 个行政区域内都发现了这一外来物种。自该物种首次在其远东自然分布区之外被发现以来的 17 年间，它已在西西伯利亚西部和中部以及近年来在前乌拉尔地区和乌拉尔地区广泛传播，从泰加中段到平原的森林草原，再到山区的西伯利亚冷杉上限。它在开发性森林、特别保护的自然区域和定居点的人工冷杉种植园中形成爆发中心。考虑到寄主植物生长的特殊性、发现的时间以及入侵种群形成的来源，研究人员确定了次生分布区的结构，并给出了四眼杉树皮甲虫的现代分布特征及其次生分布区进一步扩大的预测。

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