Intermittent Prairie Stream Ecological Types 



Intermittent Prairie Stream Ecological Types (AES code D005) in order of highest biological integrity to 

 lowest. 1 ) North Fork Moreau site #1,2) South Fork Moreau site # 1 ; 3) Campbell Creek, 4) Spur Creek, 5) 

 Hay Creek, 6) Jones Creek # 1 



Management/Threats: Grazing and livestock use around the riparian areas occurs and can have strong 

 local effects resulting in sedimentation and stream widening at cattle crossings. This can be especially 

 detrimental during the non-connective, drying period when intensive riparian cattle usage can trample 

 banks, and hummock saturated soils having implications for downstream connectivity the following year. 

 Hydrology can be easily affected in this ecological system by upstream dams or diversions in the 

 watershed because it is on such a tenuous edge of existence. 



Global Rank Comments: The number of viable occurrences is unknown, but probably abundant. 

 These prairie stream ecosystems are abundant across the Northern Great Plains Steppe of North 

 America, but the hydrology (i.e. water permanence) can be easily affected by upstream dams or 

 diversions in the watershed. Stock ponds that are stocked with game fish can also contribute to the 

 community degradation of introduced fish species. 



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