Black terns benefit from cattail management in the northern Great Plains

  • Published source details Linz G.M. & Blixt D.C. (1997) Black terns benefit from cattail management in the northern Great Plains. Colonial Waterbirds, 20, 617-621.


This study is summarised as evidence for the following.

Action Category

Treat wetlands with herbicide

Action Link
Bird Conservation
  1. Treat wetlands with herbicide

    A randomised replicated study in 24 inland wetlands in North Dakota, USA (Linz & Blixt 1997), found that the number of black terns Chlidonias niger using sites in June 1991-1993 was positively correlated with the areas of open water and dead cattail Typha spp. present, following the aerial application of glyphosate during July 1990 and 1991. The numbers of mallard Anas platyrhynchos, blue-winged teal A. discors, northern shoveler A. clypeata, gadwall A. strepera, northern pintail A. acuta, redhead Aythya americana and ruddy duck Oxyura jamaicensis were all correlated with the amount of open water and the amount of cover present. Glyphosate was sprayed over 90%, 70% or 50% of the sites.


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