Native and non-native plant species in grazed grasslands of British Columbia's southern interior

Authors

  • Don Gayton

DOI:

https://doi.org/10.22230/jem.2004v5n1a291

Keywords:

plant species origin, floristic diversity, British Columbia grasslands, native plant species, non-native plant species, species invasion, grazing impacts

Abstract

Herbaceous vegetation on 17 native grassland sites in southeastern British Columbia were assessed for their proportion of native and non-native plant species. All sites were on grazed Crown rangeland, and found within the Ponderosa Pine and Interior Douglas-fir biogeoclimatic zones. Vegetation cover values for individual species were aggregated into native and non-native categories. Values for non-native herbaceous species at the 17 sites ranged from 0 to 84% of total herbaceous cover, with an average of 35%. When compared to ungrazed controls, results varied by site. Managers of these grasslands should review and adjust current practices to discourage not only noxious weeds, but all non-native species.

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Published

2004-12-24

Issue

Vol 5, No 1 (2004)

Section

Articles

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