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Found 10 records similar to Ecology of outbreak populations of the western spruce budworm data

Federal

This dataset is associated with the article authored by Jacques Régnière, Lisa Venier and Dan Welsh entitled "Avian predation in a declining outbreak population of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae)" which will be published in the "Insects" scientific journal. The impact of avian predation on a declining population of the spruce budworm, Choristoneura fumifereana (Clem. ), was measured using single-tree exclosure cages in a mature stand of balsam fir, Abies balsamea (L.), and white spruce, Picea glauca (Moench.) Voss.

Last Updated: Dec. 7, 2021
Date Published: Jul. 6, 2021
Organization: Natural Resources Canada
Formats: XLSX
Keywords:  Entomology, Spruce budworm
Federal

This dataset is associated with the article authored by Louis De Grandpré et al. titled "Defoliation-induced changes in foliage quality may trigger broad-scale insect outbreaks" accepted for publication in Communications Biology. In this study, progression of a spruce budworm outbreak over several years was shown to be associated with increased soil nutrient fluxes and availability and improved foliage quality in surviving host trees.

Last Updated: Apr. 27, 2022
Date Published: Apr. 6, 2022
Organization: Natural Resources Canada
Formats: XLSX ZIP
Keywords:  Boreal forest, spruce budworm, outbreak, defoliation, foliage quality
Federal

We measured the foliage area, weight and number of buds on young and mature balsam fir and white spruce trees. With these measurements total amounts of foliage per tree and per unit area of forest land can be calculated. These estimates can be used to determine the absolute numbers of insects feeding on these trees, numbers that are important in understanding patterns and fluctuations of population abundance. We also discovered that spruce budworm larvae occur preferentially in buds arranged in clusters.

Last Updated: Dec. 16, 2021
Date Published: Dec. 7, 2021
Organization: Natural Resources Canada
Formats: XLSX
Keywords:  Entomology
Provincial
Every year, since 1967, the Ministry of Forests, Wildlife and Parks (MFFP) has conducted an aerial survey of the damage caused by the main insects and diseases that attack trees. This fact sheet focuses exclusively on data on damage caused by spruce budworm (SBW). The aerial survey is carried out in sectors previously determined according to the damage of the previous year and the results of the inventories predicting the populations of this insect.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**
Last Updated: Mar. 30, 2022
Date Published: Mar. 26, 2013
Organization: Government and Municipalities of Québec
Formats: SHP HTML
Keywords:  Defoliation, Natural disaster, Infestation, TBE, Government information
Federal

This dataset is associated with the article by Marine Pacé, Nicole J. Fenton, David Paré and Yves Bergeron entitled "Differential effects of feather and Sphagnum spp. mosses on black spruce germination and growth". It includes data of black spruce germination (greenhouse), seedling growth (0 to 6 months, greenhouse) and sapling growth (2-3 years, greenhouse and field, 49°44’N, 79°17’W). Seeds, seedlings and saplings were subjected to different treatments: 3 types of ground cover (bare soil, feather mosses, Sphagnum spp.

Last Updated: May 15, 2018
Date Published: Feb. 12, 2018
Organization: Natural Resources Canada
Formats: TXT ZIP
Keywords:  trees, boreal ecosystems, forestry, reforestation, forest soil, regeneration, understory
Federal

To slow the spread of the Brown spruce longhorn beetle to new areas, the Canadian Food Inspection Agency (CFIA) uses measures to control the movement of potentially infested materials. Slowing the spread of the Brown spruce longhorn beetle will protect Canada's environment and forest resources. It also helps keep international markets open to the forest industry and nurseries in non-regulated parts of Ontario and Quebec and in the rest of Canada.

Last Updated: Jul. 2, 2021
Date Published: Sep. 25, 2019
Organization: Canadian Food Inspection Agency
Formats: WMS MXD FGDB/GDB ESRI REST
Keywords:  CFIA, Maps, Natural resources, Parasites, Resources conservation, Trees, Wood, Forests, Geographic data
Federal

This dataset is associated with the article authored by Marine Pacé, David Paré, Nicole Fenton and Yves Bergeron entitled "Effect of lichen, Sphagnum spp. and feather moss leachates on jack pine and black spruce growth ". It includes growth surveys of jack pine and black spruce in greenhouse at different stages of development (0-6 month-old and 2 year-old seedlings). Seedlings were subjected to different types of leachates: jack pine was subjected to control (bare soil), feather moss and lichen leachates; black spruce was subjected to control (bare soil), feather moss and Sphagnum spp.

Last Updated: Apr. 13, 2022
Date Published: Apr. 7, 2020
Organization: Natural Resources Canada
Formats: CSV TXT
Keywords:  Boreal ecosystems, Biochemistry, Ecology, Microbiology
Federal

This database contains the data set described in Andrieux B. et al. (in preparation) about soil organic carbon bioreactivity in Quebec's spruce feathermoss forests. The soil carbon bioreactivity has been evaluated with long-term lab incubations. Carbon density in different soil functional reservoirs is available at the plot scale (n = 72): total C stock in the O layer (FH horizon), total C stock in the mineral soil (0 to 35 cm), total bioreactive C stock, total acid-insoluble C stock.

Last Updated: Apr. 13, 2022
Date Published: Mar. 24, 2020
Organization: Natural Resources Canada
Formats: CSV TXT
Keywords:  Boreal ecosystems, Climate change, Soil, Terrestrial ecosystems
Federal

This index is the cumulative summation of negative northwesterly atmospheric circulation frequency anomalies: Z (westerly), M1, (northwesterly), and M2 (southwesterly) for December through March. An increasing trend in Pacific Circulation Index (PCI) reflects increased westerly and southwesterly atmospheric circulation off the west coast of Canada. Correct citation: J. R. King, V. V. Ivanov, V. Kurashov, R. J. Beamish, G. A. McFarlane. General circulation of the atmosphere over the North Pacific and its relationship to the Aleutian Low.

Last Updated: Apr. 15, 2022
Date Published: May 3, 2017
Organization: Fisheries and Oceans Canada
Formats: CSV JPG
Keywords:  Pacific Circulation Index, PCI, Pacific
Federal

This database contains the data set described in Andrieux B. et al. (in preparation) about carbon stocks in Quebec's spruce feathermoss forests. Carbon density in different reservoirs of the ecosystem is available at the plot scale (n = 72): living aboveground biomass, coarse woody debris, organic soil horizon, mineral soil (top 15 cm), mineral soil (15-35 cm) and illuvial (B) horizon (top 15 cm). Ancillary biophysical data includes geographic locations, topographic surveys, composition of the moss mat, time since fire, and soil properties (carbon content, bulk density, forest floor depth, pH, texture and amorphous metals).

Last Updated: Jun. 27, 2018
Date Published: Jun. 20, 2018
Organization: Natural Resources Canada
Formats: TXT CSV
Keywords:  Biomass, Boreal ecosystems, Terrestrial ecosystems, Soil
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