Therefore, the positive correlation of Artemisia frigida and Chenopodium album with axis 1 suggests more seedlings of these species emerged from seed banks on sites burned twice before this study.
Correlations suggests seedling emergence of Artemisia frigida and Chenopodium album from seed banks increases with the frequency of burning.
Bouteloua gracilis (19% cover), Carex filifolia (15% cover), Buchloe dactyloides (5% cover), Sporobolus cryptandrus (5% cover), and Stipa comata (5% cover) were the dominant graminoids across the site, while Yucca glauca (1% cover) and Artemisia frigida
(1% cover) dominated the forbs.
In winter, most species had the highest C31 concentration except for Stellera chamaejasme, Artemisia frigida and Achnatherum inebrians.
However, although Artemisia frigida also contains high levels of crude protein, the yaks rarely choose it.
Les communautes herbeuses qui se trouvent sur les versants secs, abrupts et exposes du sud de la r6gion des lacs Aishihik-Sekulmun, au sud-ouest du Yukon, sont dominees par Artemisia frigida et Carex filifolia, avec comme especes sous-dominantes, Calamagrostis purpurascens, Poa glauca, Pensternon gormanii, Phlox hoodii et Potentilla nivea.
Artemisia frigida, Bromus pumpellianus, Calamagrostis purpurascens, Carex filifolia) levels.
The vegetation communities covering the main part of the grassland slopes were dominated by two species: Artemisia frigida and Carex filifolia (Table 1).
Where ground squirrels were present in high densities (judging by the number of burrow holes), their selective grazing of graminoids reduced dramatically the coverage by Carex filifolia and Poa glauca, leaving Artemisia frigida and Penstemon gormanii as the dominant species around their burrows.