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1 January 2016 Effects of Sediment Removal on Prairie Pothole Wetland Plant Communities in North Dakota
Caitlin Smith, Edward S. DeKeyser, Cami Dixon, Breanna Kobiela, Amanda Little
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Abstract

This study assessed the effects of sediment removal on Prairie Pothole Region wetland plant communities in North Dakota in order to determine if this management tool improves vegetation structure that benefits wildlife. Three categories of seasonal wetlands were evaluated: reference condition, converted cropland, and excavated. Vegetation surveys were conducted in the wet meadow and shallow marsh zones of 39 seasonal wetlands located in Benson, Eddy, Towner, and Wells Counties, North Dakota. Visual obstruction readings were taken at various heights in order to assess habitat quality. There were no geographic differences in the reference wetland plant communities. However, there were significant treatment differences between the plant communities of the wet meadow and shallow marsh zones. In general, excavated wetlands showed vegetation trends similar to reference wetlands, whereas the converted cropland wetlands tended to be more cattail-choked. Visual obstruction scores and mean percent cover of hybrid cattail (Typha X glauca) were considerably higher in converted cropland sites than in excavated and reference sites, indicating that the excavated and reference sites provide the potential for higher quality wildlife habitat. Actively restoring wetlands through excavation is a promising technique that deserves further implementation and investigation.

Caitlin Smith, Edward S. DeKeyser, Cami Dixon, Breanna Kobiela, and Amanda Little "Effects of Sediment Removal on Prairie Pothole Wetland Plant Communities in North Dakota," Natural Areas Journal 36(1), 48-58, (1 January 2016). https://doi.org/10.3375/043.036.0110
Published: 1 January 2016
KEYWORDS
adaptive management
hybrid cattail
sediment
Typha x glauca
wetland
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