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Non-native plant invasions of United States National parks

January 1, 2009

The United States National Park Service was created to protect and make accessible to the public the nation's most precious natural resources and cultural features for present and future generations. However, this heritage is threatened by the invasion of non-native plants, animals, and pathogens. To evaluate the scope of invasions, the USNPS has inventoried non-native plant species in the 216 parks that have significant natural resources, documenting the identity of non-native species. We investigated relationships among non-native plant species richness, the number of threatened and endangered plant species, native species richness, latitude, elevation, park area and park corridors and vectors. Parks with many threatened and endangered plants and high native plant species richness also had high non-native plant species richness. Non-native plant species richness was correlated with number of visitors and kilometers of backcountry trails and rivers. In addition, this work reveals patterns that can be further explored empirically to understand the underlying mechanisms. ?? Springer Science+Business Media B.V. 2008.

Citation Information

Publication Year 2009
Title Non-native plant invasions of United States National parks
DOI 10.1007/s10530-008-9376-1
Authors J. A. Allen, C. S. Brown, T.J. Stohlgren
Publication Type Article
Publication Subtype Journal Article
Series Title Biological Invasions
Series Number
Index ID 70035684
Record Source USGS Publications Warehouse
USGS Organization