Skip to Main Content
Pattern analysis of eastern spruce budworm Choristoneura fumiferana dispersalAuthor(s): Dean P. Anderson; Brian R. Sturtevant
Source: Ecography. 34: 488-497.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
View PDF (366.57 KB)
DescriptionDispersal has been proposed as an important mechanism in the broad-scale synchronisation of insect outbreaks by linking spatially disjunct populations. Evidence suggests that dispersal is influenced by landscape structure, phenology, temperature, and air currents; however, the details remain unclear due to the difficulty of quantifying dispersal. In this study, we used data on the abundance and distribution of spruce budworm Choristoneura fumiferana larvae (potential dispersers) and adult male moths (dispersers) to make inference on the effects of air currents and host-species abundance on dispersal. Hierarchical-Bayesian and inverse modeling was used to explore 4 dispersal models: 1) isotropic dispersal; 2) directional-dispersal; 3) directional-and-host-species dispersal; and 4) host-species dispersal. Despite their strong dependence on balsam fir Abies balsamea and spruce species Picea spp., the mapped basal area of these host species did not influence the pattern of dispersed moths.
- 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, email@example.com 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.
CitationAnderson, Dean P.; Sturtevant, Brian R. 2011. Pattern analysis of eastern spruce budworm Choristoneura fumiferana dispersal. Ecography. 34: 488-497.
- Using wind-deformed conifers to measure wind patterns in alpine transition at GLEES
- Ecophysiology of seedling establishment in contrasting spruce-fir forests of southern Appalachian and Rocky Mountain ecotones, USA
- Factors affecting wind damage in selectively cut stands of spruce and fir in Maine and northern New Hampshire
XML: View XML