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<br />.. I-3.1.1 Mountain Shrub <br /> The mountain shrub zone in northwestern Colorado occurs <br />as a transition zone between the grasalands and semi-desert <br />shrublands at their lower limit snd conifers at their upper <br />border. Generally this type occurs as a narrow non-contiguous <br />belt throughout this region. <br />On the study area, the mountain shrub communities are <br />"- characterized by the dominants gambel oak (Quercus <br />------ <br />gambelii) and IItah serviceberry (Amelanchier utahensis) <br />r <br />L with interspersed squaw apple (Perophyllum ramosissimum), <br />~. and mountain mahogany (Cercocarpos montanus) individuals. <br />This type on.the study area occupies shallow to moderately <br />f-'~ deep, skeletal, fine-loamy and fine-textured soils developed <br />~. from residuum and colluvium. The steeper slopes of the study <br />area are characterized by the shallower soils with a rockier <br />substrata and a higher incidence of squaw apple. <br />I <br />L Slopes in the mountain shrub vegetation type range from <br />r - 25 to 60~. Aspect varies but is predominantly west and south <br />L <br />facing on the study area. <br />r <br />L The majority of the herbaceous and shrubby understory <br />is comprised of western snowberry (S,ym~horicarvos <br />L occidentalis), longleaved phlox (Phlox longifolia), <br />junegrass (Koeleria cristata) and Colorado bedstraw <br />(Galium coloradoense). <br />f <br />L <br />r .= <br />- 12 - <br />