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Leafy spurge effects on patterns of plant species richness

Posted date: May 02, 2006
Publication Year: 
2004
Authors: Butler, Jack L.; Cogan, Daniel R.
Publication Series: 
Miscellaneous Publication
Source: Journal of range management 57(3): p. 305-311

Abstract

The objective of this study was to simultaneously evaluate the impact of leafy spurge (Euphorbia esula L.) on plant species richness within and among a wide variety of vegetation types typical of the region. The study was conducted in Theodore Roosevelt National Park in southwestern North Dakota where 11 plant associations were identified as being particularly susceptible to invasion by leafy spurge. Representative infested and non-infested stands of the 11 associations were sampled using the protocol described by the National Vegetation Classification System. To evaluate the effects of leafy spurge infestation across a variety of vegetation types, the 11 associations were grouped into 1 of 4 general physiographic/vegetative units (floodplain, grassland, woodland, and shrubland). Species richness per sampled infested stand was reduced by an average of 51% (P

Citation

Butler, Jack L.; Cogan, Daniel R. 2004. Leafy spurge effects on patterns of plant species richness. Journal of range management 57(3): p. 305-311