Differing effects of cattle grazing on native and alien plants

  • Published source details Kimball S. & Schiffman P.M. (2003) Differing effects of cattle grazing on native and alien plants. Conservation Biology, 17, 1681-1693.


This study is summarised as evidence for the following.

Action Category

Other biodiversity: Exclude grazers

Action Link
Mediterranean Farmland
  1. Other biodiversity: Exclude grazers

    A site comparison in 2001 in grassland in southern California, USA, found more native plant species and lower cover of non-native plants in an area with cattle excluded, compared to a grazed area. Plants: More plant species were found in an area of grassland from which cattle were excluded, compared to a grazed area (24 vs 12 species), and one less non-native species was found in the ungrazed area (5 vs 6). Cover of non-native species was lower in the ungrazed area, compared to the grazed area (57% vs 75%), but the cover of native plants did not differ (49% vs 46%). Methods: In 1990, a fence was used to exclude cattle from one area of a grazed grassland. In April 2001, plants were recorded in 1,000 points on each side of the fence.


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