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Tag Archives: Natural Resources Canada

High-altitude krumholtz in British Columbia, photo by Kevin Teague

More than weather determines tree-line forest growth

Information Forestry, December 2012— British Columbia is home to some of Canada’s highest-elevation forests. In the very highest of these—growing at treeline in or near the true alpine—evergreens hug the ground, twisted and bent by wind and snow pack, with vertical leaders repeatedly pruned by severe winter temperatures, ice, and wind. Read more →

Fire in the British Columbia Interior, photo by Digital_Image_fan, Flickr

Statistician determines actuarials of fire-fighting resource sharing

Information Forestry, December 2012—The biggest challenge in forecasting fire-season resource needs in Canada, says Canadian Forest Service Forest Inventory and Analysis Research Scientist Steen Magnussen, is the variability in the country’s fire regimes. “The environment, the size of Canada, the weather, the forest structure, larger climate patterns, the fire danger—all Read more →

pinewood nematode, photo by L.D. Dwinell, USDA Forest Service

Technique protects trade by targeting live micro-pest

Information Forestry, December 2009— A new molecular diagnostics method developed by Natural Resources Canada to detect live pinewood nematode in wood caught the attention of forest health officials from around the world. “Scientists from countries with forests infested by pinewood nematode expressed a great deal of interest, as did those Read more →

Traumatic resin canals, by Mike Cruickshank

Dates of root infection used to establish impact

Information Forestry, April 2008 — In order to measure a disease’s impact on a tree, you need to know when it became infected. This is difficult to do with root diseases: infection and disease progression occur underground, and above-ground symptoms may not show until years later, if ever. As well, Read more →

western spruce budworm, by William Ciesla, Forest Health Management International

Ocean-temperature effects suppress caterpillar’s infestations on Vancouver Island

Information Forestry,  December 2007— A century-long ocean-warming trend may explain the rarity of western spruce budworm outbreaks on southern Vancouver Island since the 1930s, according to a study by Canadian Forest Service scientists Alan Thomson and Ross Benton. Mild winter temperatures, linked to a rise in sea temperature, have de-synchronized Read more →

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