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
Fraser Noble Fraser Noble Sir Thomas Alexander Fraser Noble MBE (29 April 1918 – 21 August 2003) was a Scottish academic. He was former Vice-Chancellor of the University of Leicester and then Principal of the University of Aberdeen. He was born in Cromdale in Strathspey, Scotland. His father was Simon Noble of Grantown-on-Spey in the former Moray, and his mother was Jeanie Graham from Largs in North Ayrshire. His father died when he was eight. He had a brother. He attended Nairn Academy. He went to the University of Aberdeen when aged only 16. He graduated with a degree in Classics in