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We surveyed a discrete population of Mountain Plovers (Charadrius montanus) in South Park, Park County, Colorado, to determine the size and relative contribution of this geographically isolated area to the global population of plovers. First, we mapped potential plover habitat within South Park based on landform and vegetation descriptors. Second, we identified occupied habitat using observations from a systematic inventory of potential habitat from 1995-1999 and from a study of breeding biology from 2000-2002. Third, we estimated breeding densities within a framework designed specifically for distance sampling. We mapped 82750 ha of potential habitat. We recorded 2516 plover locations from which we estimated 29...
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Used first paragraph as the abstract: Naturalization and spreading of exotic woody vegetation in riparian zones have re� ceived much attention in recent years. This attention has been directed primarily at salt� cedar tamarisk (Tamarix pentandra) in south� western states (e.g., Robinson 1965, Horton 1977). Tamarisk along the lower Colorado River does not compare favorably with native woody vegetation as avian habitats (Anderson et al. 1977) and, without control. will com� petitively displace native riparian vegetation with time (Horton 1977). Published in Wildlife Society Bulletin, volume 12, issue 3, on pages 289 - 298, in 1984.
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