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Hoefs, M./ Cowan, I.M./ Krajina, V.J. 1975: Phytosociological analysis and synthesis of Sheep Mountain, southwest Yukon Territory, Canada. - Syesis 8(supplement 1): 125-228. [RLL List # 279 / Rec.# 45205]
Abstract: This study presents an analysis of the vegetation on Sheep Mountain, adjacent to Kluane Lake, Kluane National Park, in southwest Yukon Territory. The study was conducted in the field by Manfred Hoefs as part of more extensive research on the ecology of the population of Dall sheep (Ovis dalli dalli), which uses the mountain as the basis of its year-round range. In particular, the south-facing slope of the mountain is essential sheep winter range. A vegetation map is presented outlining the distribution of 32 plant associations. These are described briefly and grouped into 23 alliances and 17 orders. They occur in the study area in three biogeoclimatic zones, which are discussed. The distribution of most of the plant associations was correlated with distinct environmental gradients with respect to snow depth and duration of snowcover, soil moisture during the growing season, aspect, slope, and some physical characteristics of the soils. Special attention has been given to the association of the sheep with the different plant associations. For those used extensively for grazing, vegetation yield figures are given. Vegetation yield figures of associations used as winter range by sheep and the zoological aspects of this study will be published elsewhere by Manfred Hoefs.
Countries/Continents: Canada/North America
Notes: Lichen records included throughout.
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