Douglas fir Douglas-fir forest is the primary habitat of the red tree vole ("Arborimus longicaudus") and the spotted owl ("Strix occidentalis"). Home range requirements for breeding pairs of spotted owls are at least 400 ha () of old growth. Red tree voles may also be found in immature forests if Douglas-fir is a significant component. The red vole nests almost exclusively in the foliage of the trees, typically above the ground, and its diet consists chiefly of Douglas-fir needles. A parasitic plant sometimes utilizing "P. menziesii" is Douglas-fir dwarf mistletoe ("Arceuthobium douglasii"). The leaves are also used by the woolly conifer aphid
Charles Sherwood Noble Knox, North Dakota. In 1902 Noble moved to the Claresholm, Alberta area in what was then part of the Northwest Territories. The next year, he married Margaret Naomi Fraser. In the following years Noble purchased large tracts of land southeast of Claresholm. He constructed many of the area's first buildings and the hamlet of Noble (later renamed Nobleford) was established in 1909. By 1922 Noble had accumulated about of land but a series of poor crops, falling prices and too much debt meant he was unable to keep up the payments on the land. In the autumn of that year