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that currently exist are those that quite fortuitously are <br /> able to cope with an environment that man has significantly <br /> modified. <br /> The different wildlife habitats along South Boulder Creek <br /> can be separated into two basic types : (1) the floodplain <br /> meadows , which are sometimes heavily grazed but appear rather <br /> uniformly covered by grassy vegetation, and (2) the riparian <br /> habitat immediately adjacent to South Boulder Creek and <br /> irrigation ditches. These habitats support a more or less <br /> distinct assemblage of animal species , even though many <br /> species freely move from one habitat to the other. <br /> • The riparian habitat is more varied than the floodplain <br /> meadows, having scattered trees in some areas , dense thickets <br /> in others , and occasionally lush, herbaceous vegetation. <br /> Although smaller than the floodplain meadows , the riparian <br /> habitat is vastly more important to wildlife because of <br /> these vegetational features and the supply of open water. <br /> But heavy grazing also occurs in some riparian areas , and <br /> in places the ground cover is sparse and the soil dry and <br /> shallow. <br /> • Mining will affect chiefly the floodplain meadows. The only <br /> riparian habitat within the project site is Dry Creek No. 2 <br /> Ditch. <br /> D-2 <br />