. The Canadian field-naturalist. 372 The Canadian Field-Naturalist Vol. 97. CELAND Figure I. The Arctic. Dotted lines in the Canadian Arctic Archipelago show the "barren wedge" in flora, outlining the northern limits of zones supporting 160, 120, and 80 species of vascular plant. Stippling shows the breeding range of the Red Phalarope, mainly from Godfrey (1966: 167) and Dement'ev et al. (1969: 289, 290). and upland saxifrage semi-desert, separated by a fairly sharp boundary at the foot of the hills. The most abundant sedge in the wet meadow was Carex stans, but several species of gr
. The Canadian field-naturalist. 372 The Canadian Field-Naturalist Vol. 97. CELAND Figure I. The Arctic. Dotted lines in the Canadian Arctic Archipelago show the "barren wedge" in flora, outlining the northern limits of zones supporting 160, 120, and 80 species of vascular plant. Stippling shows the breeding range of the Red Phalarope, mainly from Godfrey (1966: 167) and Dement'ev et al. (1969: 289, 290). and upland saxifrage semi-desert, separated by a fairly sharp boundary at the foot of the hills. The most abundant sedge in the wet meadow was Carex stans, but several species of grass were common also, espe- cially Arctagrostis latifolia. Much of the ground was bare even in the best vegetated areas, and leaves from the previous year often curled over at a height of about 8 cm as though mowed. Within the lowland census tract 20 shallow ponds, occupying about 1/10 of the surface, persisted through the summer. These ranged in diameter from 10 to 150 m. In addition, the southw- est corner of the tract bordered on Hunting Camp Lake, the largest body of fresh water in the vicinity, 3 X km in extent but only l'/4 m deep. All of the ponds and streams froze solidly in winter and were devoid of fish. In contrast with the relatively well-vegetated low- lands, the dry slopes of the upland tract were marked sparsely with low-growing plants such as lichens and purple saxifrage {Saxifraga oppositifolia), with occa- sional more productive spots where temporary seep- ages occurred. The meadows usually remained covered with snow until late June except in a few favored places of early melt, but if thawing was delayed until July the result was a "nonbreeding year" when nesting for some spe- cies was severely reduced or eliminated. In the seven years 1970-1976, only 1972 was such a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations m
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