. Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones . brush, larkspur,puccoon, geranium, purple wind flower, and a host of other plantsof the Great Plains Transition Zone area. Its characteristic mam- 20 WILD ANIMALS OF GLACIEK NATIONAL PAEK. mals include the Richardson and thirteen-lined ground squirrels, theSaskatcheAvan pocket gopher, and the prairie hare; while the west-ern vesper sparrow, western Savannah sparrow, western chippingsparrow, lazuli bunting, yellow warbler, and long-tailed chickadeeare characteristic birds. On the west slope of the
. Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones . brush, larkspur,puccoon, geranium, purple wind flower, and a host of other plantsof the Great Plains Transition Zone area. Its characteristic mam- 20 WILD ANIMALS OF GLACIEK NATIONAL PAEK. mals include the Richardson and thirteen-lined ground squirrels, theSaskatcheAvan pocket gopher, and the prairie hare; while the west-ern vesper sparrow, western Savannah sparrow, western chippingsparrow, lazuli bunting, yellow warbler, and long-tailed chickadeeare characteristic birds. On the west slope of the park traces of the zone are seen in theyellow pines in the North Fork Valley, a few mountain junipersalong the river banks, black thornapple along the lake shores, west-ern birch along the streams, and an abundance of serviceberries,syringn, ocean spray, and CeanotJius sangiuneus on the low, warmslopes; but no considerable area can be called Transition Zone. Theclimate of these low valleys is mild, but the snowfall is so heavy andthe timber growth so dense that melting snow, delayed late into. Fig. 1.—Open Transition Zone valley. Yellow piners on and along edge of Big Prairiein North Fork Flathead Valley, looking east to Vulture Peak. April 16, 1918. spring by the cool forest shade, favois the plant growth and theanimal life of the Canadian Zone, which dominates the vallejS. CANADIAN ZONE. The Canadian, which comprises the well-timbered areas of thepark, is the most extensive of the four life zones. It reaches frompractically the base of the park all around up to altitudes of approxi-mately 6,000 feet on northeast slopes and 7,000 feet on southwestslopes, varying somewhat with the steepness and soil cover andAvith the amount of sunlight allowed to reach the surface of theground. Most of the zone is covered by heavy forests of lodgepolepine, Engelmann spruce, subalpine fir, aspens, black cottonwood,and mountain maple, but over the lower part of the west slope of the PHYSIOGRAP
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectmam
