boreal forest

Climate, human activities, and increasing timber prices have affected the number and total area covered by forest fires in Trillemarka-Rollagsfjell Nature Reserve throughout history. This image shows a pine stump showing wounds after forest fires in 1590 and 1631 (lower slab), and in 1684 (upper slab). In total, the forest scientists collected 459 wooden samples like these, with all together 745 fire wounds spanning 254 different forest fires. Photo credit: Jørund Rolstad, NIBIO.

Fire-scarred trees record 700 years of natural and cultural fire history in a northern forest

FOR IMMEDIATE RELEASE: Wednesday 1 March 2017 Contact: Lars Sandved Dalen, NIBIO, on.oibinnull@nelaD.sraL Liza Lester, ESA, 202-833-8773 ext. 211, gro.asenull@retseLL Until the modern era, the human mark on the northernmost forests of North America, Europe, and Asia was light. Human populations in these challenging environments were too small to make a big impact through agriculture or timber…

Fire-scarred trees record 700 years of natural and cultural fire history in a northern forest

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Adult female elk (Cervus canadensis) in northeastern Washington, USA, balance shifting risks from cougars, wolves, and humans by altering habitat preferences according to the time of day. In their study published in the April issue of Ecology, Ganz et al. found that humans caused most adult female elk deaths through hunting and vehicle collisions, and elk prioritized avoiding humans over wolves and cougars in the daytime, when humans are most active. At night, elk primarily avoided cougars and wolves (when these carnivores primarily hunt) and preferred areas near human activities, which reduced exposure to the threat of wolf predation.

boreal forest

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