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Evaluating plant invasions from both habitat and species perspectives

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Cynthia A Villa, Yuka Otsuki, Alycia Waters, Geneva W Chong, Paul H Evangelista, Debra A Guenther, and Thomas J Stohlgren, Evaluating plant invasions from both habitat and species perspectives: .

Summary

We present an approach to quantitatively assess nonnative plant invasions at landscape scales from both habitat and species perspectives. Our case study included 34 nonnative species found in 142 plots (0.1 ha) in 14 vegeta- tion types within the Grand Staircase–Escalante National Monument, Utah. A plot invasion index, based on nonnative species richness and cover, showed that only 16 of 142 plots were heavily invaded. A species invasive index, based on frequency, cover, and number of vegetation types invaded, showed that only 7 of 34 plant species were highly invasive. Multiple regressions using habitat characteristics (moisture index, elevation, soil P, native species richness, maximum crust development class, bare ground, and [...]

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From Source - Mendeley RIS export <br> On - Tue May 10 10:38:51 CDT 2011

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Title Citation Evaluating plant invasions from both habitat and species perspectives

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