Skip to Main Content
-
Are bark beetle outbreaks less synchronous than forest Lepidoptera outbreaks?
Author(s): Bjorn Okland; Andrew M. Liebhold; Ottar N. Bjornstad; Nadir Erbilgin; Paal Krokene; Paal Krokene
Date: 2005
Source: Oecologia. 146: 365-372.
Publication Series: Miscellaneous Publication
PDF: View PDF (614.55 KB)Description
Comparisons of intraspecific spatial synchrony across multiple epidemic insect species can be useful for generating hypotheses about major determinants of population patterns at larger scales. The present study compares patterns of spatial synchrony in outbreaks of six epidemic bark beetle species in North America and Europe. Spatial synchrony among populations of the Eurasian spruce bark beetle Ips typographus was significantly higher than for the other bark beetle species. The spatial synchrony observed in epidemic bark beetles was also compared with previously published patterns of synchrony in outbreaks of defoliating forest Lepidoptera, revealing a marked difference between these two major insect groups. The bark beetles exhibited a generally lower degree of spatial synchrony than the Lepidoptera, possibly because bark beetles are synchronized by different weather variables that are acting on a smaller scale than those affecting the Lepidoptera, or because inherent differences in their dynamics leads to more cyclic oscillations and more synchronous spatial dynamics in the Lepidoptera.Publication Notes
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
Citation
Okland, Bjorn; Liebhold, Andrew M.; Bjornstad, Ottar N.; Erbilgin, Nadir; Krokene, Paal. 2005. Are bark beetle outbreaks less synchronous than forest Lepidoptera outbreaks?. Oecologia. 146: 365-372.Keywords
spatial synchrony, Scolytidae, moth, weather, population dynamicsRelated Search
- Geographic variation in forest composition and precipitation predict the synchrony of forest insect outbreaks
- Southern pine beetle regional outbreaks modeled on landscape, climate and infestation history
- Landscape host abundance and configuration regulate periodic outbreak behavior in spruce budworm Choristoneura fumiferana
XML: View XML
Show More
Show Fewer
https://www.fs.usda.gov/treesearch/pubs/21536