Results 21 to 30 of about 1,551 (207)
Plasticity of cold hardiness in the eastern spruce budworm, Choristoneura fumiferana [PDF]
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2021 Abstract High latitude insect populations must cope with extreme conditions, particularly cold temperatures. Insects use a variety of cold hardiness mechanisms to withstand this temperature stress, and these can drive geographic distributions through overwintering mortality. The degree of cold hardiness can be altered
Skye Butterson +2 more
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Frontiers in Ecology and Evolution, 2023 Anthropogenic climate change is contributing to increased insect infestation globally, leading to pest population growth, expansion of niche and geographic ranges as well as increased outbreak frequencies, resulting in economic losses and reduction in ...
Michelle Kalamandeen +7 more
doaj +1 more source
Evidence of Male Hair Pencil Pheromone in Choristoneura fumiferana (Lepidoptera: Tortricidae). [PDF]
J Insect Sci, 2016 Male Lepidoptera often possess specialized scales, called hair pencils that emit volatiles that are critical to mating success. Spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae), males will display hair pencils to females before attempting copulation.
Roscoe LE, Silk P, Eveleigh ES.
europepmc +4 more sources
Variation of Stem Radius in Response to Defoliation in Boreal Conifers
Frontiers in Forests and Global Change, 2021 In the long term, defoliation strongly decreases tree growth and survival. Insect outbreaks are a typical cause of severe defoliation. Eastern spruce budworm (Choristoneura fumiferana Clem.) outbreaks are one of the most significant disturbances of Picea
Lorena Balducci +2 more
doaj +1 more source
Hydroxyacetophenone defenses in white spruce against spruce budworm
Evolutionary Applications, 2020 We review a recently discovered white spruce (Picea glauca) chemical defense against spruce budworm (Choristoneura fumiferana) involving hydroxyacetophenones.
Geneviève J. Parent +7 more
doaj +1 more source
Frontiers in Forests and Global Change, 2022 Balsam fir (Abies balsamea) is the most vulnerable species to the spruce budworm (Choristoneura fumiferana), one of the most devastating defoliators in the world.
Daniel D. Kneeshaw +6 more
doaj +1 more source
Insect herbivory (Choristoneura fumiferana, Tortricidea) underlies tree population structure (Picea glauca, Pinaceae). [PDF]
Sci Rep, 2017 Variation in insect herbivory can lead to population structure in plant hosts as indicated by defence traits. In annual herbaceous, defence traits may vary between geographic areas but evidence of such patterns is lacking for long-lived species. This may
Parent GJ +5 more
europepmc +2 more sources
Life-history consequences of chronic nutritional stress in an outbreaking insect defoliator. [PDF]
PLoS ONE, 2014 Food shortage is a common situation in nature but little is known about the strategies animals use to overcome it. This lack of knowledge is especially true for outbreaking insects, which commonly experience nutritional stress for several successive ...
Enric Frago, Eric Bauce
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Analysis of the Choristoneura fumiferana nucleopolyhedrovirus genome
Journal of General Virology, 2005 The double-stranded DNA genome of Choristoneura fumiferana nucleopolyhedrovirus (CfMNPV) was sequenced and analysed in the context of other group I nucleopolyhedroviruses (NPVs). The genome consists of 129 593 bp with a G+C content of 50·1 mol%. A total of 146 open reading frames (ORFs) of greater than 150 bp, and with no or minimal overlap were ...
Jondavid G, de Jong +6 more
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Defensive Traits during White Spruce (Picea glauca) Leaf Ontogeny
Insects, 2021 Changes during leaf ontogeny affect palatability to herbivores, such that many insects, including the eastern spruce budworm (Choristoneura fumiferana (Clem.)), are specialist feeders on growing conifer leaves and buds.
Antoine-Olivier Lirette, Emma Despland
doaj +1 more source