sites. Water development, salt block placement, trailing, and fences 

 should not be brought in close to the populations. 



c. In addition, the area of the largest population near the East Fork of 



Otter Creek may warrant special management designation and study, 

 considering its exceptionally large Carex torreyi population in addition 

 to the presence of both C. gravida and Dichanthelium oligosanthes var. 

 scribnerianum. 



RECOMMENDATIONS FOR FURTHER ASSESSMENT: The species 

 should be included in woody draw sensitive species studies in eastern Montana 

 for the purpose of testing its value as a management indicator species for rarer 

 species. 



SUMMARY 



Carex torreyi is recurrent in localized mesic woodland settings over much of the District. It is 

 usually present in low numbers and is likely to be negatively impacted by logging and 

 grazing, so that its state rank has been changed to "S3" (vulnerable in Montana), and it may 

 have use as a management indicator species. It does not warrant a special Forest Service 

 status other than as an indicator species. This recommendation updates that presented in 

 Heidel and Dueholm (1995). 



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