Migration of the Northern Boundary of the Siberian Silk Moth

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1134/S1995425518010055

Ключевые слова: Siberian silk moth, climate change, dendrophagous insects, pest outbreaks, pest range

Аннотация: Climate changes have induced the northward migration of outbreaks of the Siberian silk moth (Dendrolimus sibiricus Tschetv.), one of the most dangerous pests in the taiga. The initial outbreak of the Siberian silk moth began in 2014 in Siberian pine.fir stands within the Yenisei Plain on the southwestern flat slopes at elevations up to 200 m above sea level. Further, the outbreak extended to the parts of the forest with higher humidity, the northern slopes, and Yenisei Ridge at low and middle elevations. The northern limit of the outbreak zone shifted to 50 km (to 60A degrees 26' N) northward from the historical boundary of formerly observed outbreaks. The outbreak was incited by an increase in aridity, the sum of positive temperatures (t > +10A degrees C), and a decrease in soil moisture. It extended to an area of 800000 ha. Stand mortality was accompanied by the activation of secondary pests, including aggressive bark beetle species Polygraphus proximus. The outbreak under study is part of the panzonal outbreak that occurred in 2014-2017 on the territory of Siberia in Krasnoyarsk krai and Tomsk, Kemerovo, and Irkutsk oblasts. The increase in warming, aridity, and vegetative period provides opportunities for the Siberian silk moth to migrate to the northern dark-conifer taiga.

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Издание

Журнал: CONTEMPORARY PROBLEMS OF ECOLOGY

Выпуск журнала: Vol. 11, Is. 1

Номера страниц: 26-34

ISSN журнала: 19954255

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Kharuk V.I. (Russian Acad Sci, Fed Res Ctr, Sukachev Inst Forest, Krasnoyarsk Sci Ctr,Siberian Branch, Akademgorodok 50-28, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Im S.T. (Russian Acad Sci, Fed Res Ctr, Sukachev Inst Forest, Krasnoyarsk Sci Ctr,Siberian Branch, Akademgorodok 50-28, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia; Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660041, Russia)
  • Yagunov M.N. (Forest Protect Ctr Krasnoyarsk Krai, Akademgorodok 50a-2, Krasnoyarsk 660036, Russia)

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