Results 191 to 200 of about 11,725,633 (235)
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Enemy release from beech bark disease coincides with upslope shift of American beech
Canadian Journal of Forest Research, 2022Upslope shifts in plant distributions are often attributed to warming climate and lengthening of the growing season; however, biotic interactions may also contribute. The impacts of pests and pathogens are often sensitive to climate change and can vary along the climatic gradient associated with elevation. American beech ( Fagus grandifolia) has moved
Natalie L. Cleavitt +5 more
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The First Occurrence of the Beech Scale Insect on American Beech Trees in Ontario
Arboriculture & Urban Forestry, 1985The beech scale insect, Cryptococcus fagisuga was found on American beech trees, Fagus grandifolia for the first time in Ontario in 1981. The affected trees were located in the Newmarket area north of Toronto.
S. Bisessar +2 more
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Micropropagation of juvenile and mature american beech
Plant Cell, Tissue and Organ Culture, 1997The purpose of this study was to micropropagate juvenile and mature American beech (Fagus grandifoliaEhrh.) resistant to beech bark disease. Shoot tips (from juvenile seedlings and root sprouts of mature trees) and buds from branches of mature trees, were cultured and multiplied on aspen culture medium supplemented with 0.89M 6-benzyladenine, 0.27M ...
Melanie J. Barker +3 more
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Assessment of beech scale resistance in full- and half-sibling American beech families
Canadian Journal of Forest Research, 2010A beech bark disease infested American beech tree ( Fagus grandifolia Ehrh.) and two uninfested trees were selected in a mature natural stand in Michigan, USA, and mated to form two full-sib families for evaluating the inheritance of resistance to beech scale ( Cryptococcus fagisuga Lind.), the insect element of beech bark disease.
Jennifer L. Koch +3 more
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Anticipating Shifts in American Beech Distribution in a Changing Climate
Journal of BiogeographyABSTRACTAimThis study aimed to anticipate shifts in habitat suitability for American beech (Fagus grandifolia) under current and future climate scenarios using an ensemble of species distribution models (SDM). The resulting habitat suitability projections will serve as a foundational layer for developing a hierarchical risk mapping model for beech leaf
Desheng Liu +2 more
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Dendrochemical Analysis of Lead and Calcium in Southern Appalachian American Beech
Journal of Environmental Quality, 2002ABSTRACTThe health of the northern hardwood forest in the southern Appalachian Mountains of Tennessee, North Carolina, and Virginia has gained attention from the media and environmental stakeholders due to a purported decline in forest health at higher elevations.
Fisher, Suzanne +2 more
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Environmental and Ecological Statistics, 1996
The effect of beech bark disease on tree growth was tracked using paired resistant and susceptible American beech trees in two locations in Maine. Within each site, the paired trees were chosen in close proximity and with similar morphological characteristics (e.g. stem diameter and crown class) to minimize environment effects in subsequent analysis. A
J. H. Gove, D. R. Houston
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The effect of beech bark disease on tree growth was tracked using paired resistant and susceptible American beech trees in two locations in Maine. Within each site, the paired trees were chosen in close proximity and with similar morphological characteristics (e.g. stem diameter and crown class) to minimize environment effects in subsequent analysis. A
J. H. Gove, D. R. Houston
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A mysterious disease is striking American beech trees
Science, 2019Researchers debate whether a tiny worm is to blame.
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Effects of beech bark disease on the growth of American beech (Fagusgrandifolia)
Canadian Journal of Forest Research, 1993We studied radial growth reduction in American beech (Fagusgrandifolia Ehrh.) in relation to the level of defect induced by beech bark disease, in second-growth and old-growth northern hardwoods stands in New Hampshire. In the second-growth stand at Moose Mountain (n = 243 trees), 1989–1990 radial growth declined significantly with increasing severity
David G. Gavin, David R. Peart
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