Results 31 to 40 of about 1,551 (207)

A Holocene landscape dynamic multiproxy reconstruction: How do interactions between fire and insect outbreaks shape an ecosystem over long time scales? [PDF]

PLoS ONE, 2018
At a multi-millennial scale, various disturbances shape boreal forest stand mosaics and the distribution of species. Despite the importance of such disturbances, there is a lack of studies focused on the long-term dynamics of spruce budworm ...
Lionel Navarro, Anne-Élizabeth Harvey, Adam Ali, Yves Bergeron, Hubert Morin   +4 more
doaj   +1 more source

Anti-Insect Secondary Metabolites from Fungal Endophytes of Conifer Trees

Natural Product Communications, 2009
Choristoneura fumiferana is the most economically-important insect pest in eastern North America. Historically, strategies to control epidemics have relied on chemical pesticides that are no longer approved for use.
Mark W. Sumarah, J. David Miller
doaj   +1 more source

Effects of Spruce Budworm (Choristoneura fumiferana (Clem.)) Outbreaks on Boreal Mixed-Wood Bird Communities

Avian Conservation and Ecology, 2009
This study examined the influence of a spruce budworm (Choristoneura fumiferana (Clem.)) outbreak on a boreal mixed-wood bird community in forest stands ranging in age from 0 to 223 yr.
Lisa A. Venier, Jennie L. Pearce, Don R. Fillman, Don K. McNicol, Dan A. Welsh   +4 more
doaj   +1 more source

The biological function of an insect antifreeze protein simulated by molecular dynamics

eLife, 2015
Antifreeze proteins (AFPs) protect certain cold-adapted organisms from freezing to death by selectively adsorbing to internal ice crystals and inhibiting ice propagation.
Michael J Kuiper, Craig J Morton, Sneha E Abraham, Angus Gray-Weale   +3 more
doaj   +1 more source

Choristoneura fumiferana nucleopolyhedrovirus encodes a functional 3′–5′ exonuclease

Journal of General Virology, 2004
The Choristoneura fumiferana nucleopolyhedrovirus (CfMNPV) encodes an ORF homologous to type III 3'-5' exonucleases. The CfMNPV v-trex ORF was cloned into the Bac-to-Bac baculovirus expression-vector system, expressed in insect Sf21 cells with an N-terminal His tag and purified to homogeneity by using Ni-NTA affinity chromatography.
Dan-Hui, Yang, Jondavid G, de Jong, Amina, Makhmoudova, Basil M, Arif, Peter J, Krell   +4 more
openaire   +2 more sources

Distinguishing eastern North American forest moth pests by wing-scale ultrastructure: potential applications in paleoecology

FACETS, 2019
The use of fossil moth wing scales has recently been introduced as a new method to reconstruct population histories of lepidopterans and provide a proxy for insect disturbance.
Kristen J. Milbury, Les C. Cwynar, Sara Edwards   +2 more
doaj   +1 more source

Conservation planning integrating natural disturbances: Estimating minimum reserve sizes for an insect disturbance in the boreal forest of eastern Canada

PLoS ONE, 2022
Large natural disturbances such as insect outbreaks and fire are important processes for biodiversity in forest landscapes. However, few methods exist for incorporating natural disturbances into conservation planning. Intact forest landscapes, such as in
Marc Edwards, Kim Lisgo, Shawn Leroux, Meg Krawchuk, Steve Cumming, Fiona Schmiegelow   +5 more
doaj   +2 more sources

Multi-Source Mapping of Forest Susceptibility to Spruce Budworm Defoliation Based on Stand Age and Composition across a Complex Landscape in Maine, USA

Canadian Journal of Remote Sensing, 2022
Spruce budworm (Choristoneura fumiferana; SBW) outbreaks in the northeastern USA and Canada are recurring phenomena leading to large-scale mortality of spruce (Picea sp.) and balsam fir (Abies balsamea (L.) Mill.) forests as susceptibility to SBW is ...
Rajeev Bhattarai, Parinaz Rahimzadeh-Bajgiran, Aaron Weiskittel   +2 more
doaj   +1 more source

Gene organization and sequencing of the Choristoneura fumiferana defective nucleopolyhedrovirus genome

Journal of General Virology, 2005
Two distinct nucleopolyhedrovirus species of the eastern spruce budworm, Choristoneura fumiferana, exist in a symbiont-like relationship. C. fumiferana defective nucleopolyhedrovirus (CfDEFNPV) only infects C. fumiferana larvae per os in the presence of C.
Hilary A M, Lauzon, Peter B, Jamieson, Peter J, Krell, Basil M, Arif   +3 more
openaire   +2 more sources

Monitoring Spruce Budworm with Light Traps: The Effect of Trap Position

Psyche: A Journal of Entomology, 2014
Daily records of adult spruce budworms, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae), captured at light traps at multiple locations in New Brunswick in the 1970s, are analyzed in relation to the physical position of light traps (tree ...
Marc Rhainds, Edward G. Kettela
doaj   +1 more source