Tree-ring Reconstruction of Bark Beetle Disturbances in the Picea schrenkiana Fisch. et Mey. Forests of Southeast Kazakhstan
AuthorLynch, Ann M.
Mukhamadiev, Nurjan S.
O’Connor, Christopher D.
Panyushkina, Irina P.
Ashikbaev, Nursagim A.
Sagitov, Abay O.
AffiliationUniv Arizona, Lab Tree Ring Res
MetadataShow full item record
CitationLynch, A. M., Mukhamadiev, N. S., O’Connor, C. D., Panyushkina, I. P., Ashikbaev, N. A., & Sagitov, A. O. (2019). Tree-ring Reconstruction of Bark Beetle Disturbances in the Picea schrenkiana Fisch. et Mey. Forests of Southeast Kazakhstan. Forests, 10(10), 912.
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AbstractIps hauseri Reitter is the most important bark beetle on Picea schrenkiana in southeast Kazakhstan, but its biology, ecology, and outbreak dynamics are poorly known. We dendrochronologically reconstructed a 200-year history of disturbances in the Kazakh Tien Shan P. schrenkiana forests. Only localized, low-severity bark beetle events occurred during the reconstructed period, indicating that extensive high-severity bark beetle outbreaks have not occurred historically in the Tien Shan spruce forest, unlike bark beetle outbreaks in spruce forests in North America, Europe, and Russia. Disturbance frequency doubled after about 1965, probably due to warming climate. Results, combined with the failure of an outbreak to fully develop after blowdown events associated with hurricane-force windstorms in 2011, indicate that prolonged drought may be necessary to sustain I. hauseri outbreaks, or that year-to-year variation in the Tien Shan weather prevents outbreak development. I. hauseri is probably less aggressive than I. typographus, at least on their natural hosts within their natural ranges.
NoteOpen access journal
VersionFinal published version
SponsorsFST Award of the Science Committee of Ministry of Education and Science, Republic of Kazakhstan [055, 309]; NSF BCS-Archaeology and Archaeometry 
Except where otherwise noted, this item's license is described as Copyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).