scholarly journals Expressing the Competitive Relationship between Wyoming Big Sagebrush and Crested Wheatgrass

1976 ◽  
Vol 29 (4) ◽  
pp. 326 ◽  
Author(s):  
L. R. Rittenhouse ◽  
F. A. Sneva
Keyword(s):  
Crested Wheatgrass ◽  
Big Sagebrush ◽  
Competitive Relationship ◽  
Wyoming Big Sagebrush

Response of Broom Snakeweed (Gutierrezia sarothrae) and Cool-Season Grasses to Defoliation

2009 ◽  
Vol 2 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Michael H. Ralphs
Keyword(s):  
Soil Surface ◽  
Native Plant ◽  
Cool Season ◽  
Current Season ◽  
Crested Wheatgrass ◽  
Big Sagebrush ◽  
Competitive Disadvantage ◽  
Bluebunch Wheatgrass ◽  
Wyoming Big Sagebrush ◽  
Gutierrezia Sarothrae

AbstractBroom snakeweed is one of the most widespread range weeds in western North America. Although a native plant, it increases with disturbance such as overgrazing, fire, and drought, and can dominate sites. The objective of this study was to test the hypothesis that defoliation of broom snakeweed alone, and along with associated grasses, would reduce its vigor and increase its mortality in bunchgrass plant communities. The study was conducted at two locations: near Nephi, UT in an invaded crested wheatgrass stand and at Howell, UT in a bluebunch wheatgrass/Wyoming big sagebrush community. Clipping treatments consisted of (1) untreated Control; (2) All Clip—clipping all herbaceous vegetation 2 cm above the soil surface, and current season foliar growth of snakeweed; (3) Grass Clip—clipping all grass and forb plants; (4) Snakeweed Clip—clipping current season foliar growth. Treatments were randomly assigned to 1-m2plots and clipped in May or late August. Plots were measured and clipped at the respective seasons annually from 2004 to 2007. Defoliation of snakeweed in spring in the Snakeweed Clip treatment caused higher mortality and lower size and vigor of remaining plants than the other treatments at the end of the study. Clipping all vegetation also reduced snakeweed density at Nephi, but not at Howell. There was little regrowth of bluebunch wheatgrass at Howell in the All Clip treatment; thus, it was likely to have not competed with snakeweed regrowth for limited soil moisture. Bluebunch wheatgrass cover declined at Howell in the All and Grass Clip treatments. Crested wheatgrass was not adversely affected by spring defoliation in the All and Grass Clip treatments, and it increased in the Snakeweed Clip treatment. There were few differences in the fall defoliations. Spring defoliation of snakeweed put it at a competitive disadvantage with both intact perennial bunchgrasses and regrowth crested wheatgrass, thus enhancing its mortality.

Banking Wyoming big sagebrush seeds

2013 ◽  
Vol 14 (1) ◽  
pp. 60-70 ◽  
Author(s):  
R. P. Karrfalt ◽  
N. Shaw
Keyword(s):  
Big Sagebrush ◽  
Wyoming Big Sagebrush

Effect of fungicide on Wyoming big sagebrush seed germination

2011 ◽  
Vol 12 (3) ◽  
pp. 263-267 ◽  
Author(s):  
R. D. Cox ◽  
L. H. Kosberg ◽  
N. L. Shaw ◽  
S. P. Hardegree
Keyword(s):  
Seed Germination ◽  
Big Sagebrush ◽  
Wyoming Big Sagebrush

Canopy Growth and Density of Wyoming Big Sagebrush Sown with Cool-Season Perennial Grasses

2006 ◽  
Vol 20 (3) ◽  
pp. 183-194 ◽  
Author(s):  
Ann L. Hild ◽  
Gerald E. Schuman ◽  
Laurel E. Vicklund ◽  
Mary I. Williams
Keyword(s):  
Perennial Grasses ◽  
Cool Season ◽  
Big Sagebrush ◽  
Wyoming Big Sagebrush

Long-Term Effects of Fire on Vegetation Structure and Predicted Fire Behavior in Wyoming Big Sagebrush Ecosystems

Ecosystems ◽  
2018 ◽  
Vol 22 (2) ◽  
pp. 257-265 ◽  
Author(s):  
Schyler A. Reis ◽  
Lisa M. Ellsworth ◽  
J. Boone Kauffman ◽  
David W. Wrobleski
Keyword(s):  
Vegetation Structure ◽  
Fire Behavior ◽  
Long Term Effects ◽  
Big Sagebrush ◽  
Wyoming Big Sagebrush
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