. The Canadian field-naturalist. 186 The Canadian Field-Naturalist Vol. 93 100 50 - o 100 - ISlOin 50 O lOO « 50 E o n o lOO, .// 1-âPm / o / o o/^' 1590 m -o-o 1 ,d \. â - V 1330m o r / 0\ o ^° / /. 15 15 15 15 15 15 May Jun Jul Aug Sept Oct 50 % of annual growth completed Figure 2. Growth of Carex filifolia at various altitudes in 1970, demonstrating vertical phenological advance. observed when feeding took place within one plant association. New growth was preferred to the mature and dormant stage of a species. Special attention was paid to flowers, particularly large and showy ones. Puls
. The Canadian field-naturalist. 186 The Canadian Field-Naturalist Vol. 93 100 50 - o 100 - ISlOin 50 O lOO « 50 E o n o lOO, .// 1-âPm / o / o o/^' 1590 m -o-o 1 ,d \. â - V 1330m o r / 0\ o ^° / /. 15 15 15 15 15 15 May Jun Jul Aug Sept Oct 50 % of annual growth completed Figure 2. Growth of Carex filifolia at various altitudes in 1970, demonstrating vertical phenological advance. observed when feeding took place within one plant association. New growth was preferred to the mature and dormant stage of a species. Special attention was paid to flowers, particularly large and showy ones. Pulsatilla patens and Oxytropis viscida flowers are important forage items in early spring when the sheep are still on winter range, while Pedicularis spp., Dryas integrifolia, Hedysarum alpinum, Epilobiuin lati- folium, and Oxytropis huddelsonii flowers are important on alpine summer range. Fall migration from alpine summer ranges commences in late August and early September. Only ewes and lambs, however, appear to arrive at lower elevations in time to utilize certain plant species that are still "; Heavy use is made at this time of the various willow species in the subalpine shrub zone (1200 to 1600 m), when all the. 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 may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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