Persistence of balsam fir and black spruce populations in the mixedwood and coniferous bioclimatic domain of eastern North America [PDF]
Ecology and Evolution, 2019 The boreal ecocline (ca 49°N) between the southern mixedwood (dominated by balsam fir) and the northern coniferous bioclimatic domain (dominated by black spruce) may be explained by a northward decrease of balsam fir regeneration, explaining the gradual ...
Venceslas Goudiaby +2 more
exaly +4 more sources
Responses of isolated balsam-fir stem segments to exogenous ACC, IAA, and IBA [PDF]
Forestry ResearchIn this investigation, the effects of exogenous indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), and 1-aminocyclopropane-1-carboxylic acid (ACC) on anatomical development within cultured segments of Abies balsamea (L.) Mill.
Rodney Arthur Savidge
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Carbon allocation during defoliation: testing a defence-growth trade-off in balsam fir [PDF]
Frontiers in Plant Science, 2015 During repetitive defoliation events, carbon can become limiting for trees. To maintain growth and survival, the resources have to be shared more efficiently, which could result in a trade-off between the different physiological processes of a plant. The
Annie eDeslauriers +2 more
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Transmission of a Gammabaculovirus within Cohorts of Balsam Fir Sawfly (Neodiprion abietis) Larvae
Insects, 2012 Nucleopolyhedroviruses (NPV: Gammabaculovirus: Baculoviridae) of diprionid sawflies (Diprionidae: Hymenoptera) are highly host specific and only infect the midgut epithelium.
Christopher J. Lucarotti +2 more
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Unearthing Forest History: Integrating Soil Charcoal Macrofossils and Pollen Reveals Delayed Forest Responses to Holocene Climatic Transitions in Boreal-Temperate Ecotone. [PDF]
Ecol EvolThis study reconstructs long‐term vegetation dynamics at the boreal–temperate forest ecotone in eastern Canada using soil charcoal, pollen records, and forest inventories. Results reveal a delayed expansion of thermophilous tree species and a late borealization of the landscape in relation to climate change, alongside recent stand‐scale shifts driven ...
Rioux-Couture C +2 more
europepmc +2 more sources
Does the type of silvicultural practice influence spruce budworm defoliation of seedlings?
Ecosphere, 2021 Spruce budworm (Choristoneura fumiferana (Clem)) is the main defoliator in the boreal forest of North America, and its outbreaks have major ecological and economic consequences and represent a challenge for forest management.
Janie Lavoie +3 more
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Frontiers in Ecology and Evolution, 2021 Spruce budworm (SBW) outbreaks are a major disturbance in North American forests. In Quebec, Canada, the recent history of SBW outbreaks at the local scale is well-known.
Cassy Berguet +3 more
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Effects of a warmer climate and forest composition on soil carbon cycling, soil organic matter stability and stocks in a humid boreal region [PDF]
SOIL, 2022 The maintenance of the large soil organic carbon (SOC) stocks of the boreal forest under climate change is a matter of concern. In this study, major soil carbon pools and fluxes were assessed in 22 closed-canopy forests located along an elevation and ...
D. Paré +3 more
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Ecosphere, 2023 The stand‐level risk of both defoliation and mortality due to the spruce budworm (Choristoneura fumiferana, Clem., SBW) is mainly linked to the quality of the resource such that stands dominated by the primary host species, balsam fir (Abies balsamea [L.]
Pierce McNie +2 more
doaj +1 more source
Ecosphere, 2020 Spruce budworm (SBW) outbreaks are a major natural disturbance in boreal forests of eastern North America. During large‐scale infestations, aerial spraying of bacterial insecticides is used to suppress local high‐density SBW populations.
Zelin Liu +6 more
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