Table 13 — Relative resistance, resilience, and tolerance of species in Colorado's 

 Rocky Mountains 



Species Resistance^ Resilience^ Tolerance^ 



Shrubs 



Vaccinium scoparium (Sy m I I 

 Graminoids 



Bromopsis porteri {4) m mm 



Carex norvegica (4) m h h 



Carex microptera (2) h m m 



Carex phaeocephala {\) m m m 



Carex rossii (3) h — h 



Danthonia intermedia {^) h h h 



Deschampsia caespitosa (^) h h h 



Kobresia myosuroides (2) ii m h 



Poa pratensis (4) m h h 



Forbs 



Achillea lanulosa (4) m h h 



Antennaria alpina (^) m mm 



Aquilegia caerulea (4) I h h 



Arnica cordifolia (4) I m I 



Artemisia scopulorum {^) m m m 



Aster laevis (4) m h h 



Erigeron melanocephalus {'\) m I I 



Erigeron peregrinus (3) m I I 



Erigeron simplex (2) I m m 



Fragaria avails (4) m h h 



Galium boreale (A) I h h . 



Geranium richardsonii (A) I m I 



Geum rossii (2) h h h 



Hieracium gracile (3) mil 



Pedicularis bracteata (3) I II 



Pedicularis racemosa (3) m I I 



Polygonum bistortoides {\) — h h 



Polygonum vivipara (2) m m m 



Potentilla diversifolia (^) m h h 



Sibbaldia procumbens (^ ,3) m m-h m-h 



Taraxacum officinale (4) m h h 



Thermopsis divaricarpa (4) I h h 



Tfialictrum fendleri (4) III 



Trifolium dasyphiyllum (2) m h h 



Trifolium parryi (^) h h h 



Viola canadensis (4) m h h 



Other 



Lichens (1,2,3) l-m l-m l-m 



Mosses (1 ,2) h m-h m-h 



^Resistance classes are based on the minimum number of passes that reduced cover 

 by 50 percent: h > 500 passes; m = 200 passes; I < 75 passes. 



^Resilience classes are based on recovery after cover was reduced nearly to zero: 

 h = cover 1 year after trampling was more than two-thirds of the original cover; m = cover 

 1 year after trampling was between one-third and two-thirds of original cover; I = cover 

 1 year after trampling was less than one-third of original cover. 



^Tolerance classes are based on the maximum number of passes that could be toler- 

 ated and still have at least 75 percent of original cover 1 year after trampling: h > 500 

 passes; m = 200 passes; I < 75 passes. 



"•Vegetation types: 1 = Trifolium parryi; 2 = Kobresia myosuroides, 3 = Vaccinium sco- 

 parium; 4 = Geranium rictiardsonii. 



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