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Full-Text Articles in Plant Sciences
Resilience And Resistance Of Sagebrush Ecosystems: Implications For State And Transition Models And Management Treatments, Jeanne C. Chambers, Richard F. Miller, David I. Board, David A. Pyke, Bruce A. Roundy, James B. Grace, Eugene W. Schupp, Robin J. Tausch
Resilience And Resistance Of Sagebrush Ecosystems: Implications For State And Transition Models And Management Treatments, Jeanne C. Chambers, Richard F. Miller, David I. Board, David A. Pyke, Bruce A. Roundy, James B. Grace, Eugene W. Schupp, Robin J. Tausch
Articles
In sagebrush ecosystems invasion of annual exotics and expansion of piñon (Pinus monophylla Torr. and Frem.) and juniper (Juniperus occidentalis Hook., J. osteosperma [Torr.] Little) are altering fire regimes and resulting in large-scale ecosystem transformations. Management treatments aim to increase resilience to disturbance and enhance resistance to invasive species by reducing woody fuels and increasing native perennial herbaceous species. We used Sagebrush Steppe Treatment Evaluation Project data to test predictions on effects of fire vs. mechanical treatments on resilience and resistance for three site types exhibiting cheatgrass (Bromus tectorum L.) invasion and/or piñon and juniper expansion: 1) …
A Synopsis Of Short-Term Response To Alternative Restoration Treatments In Sagebrush-Steppe: The Sagestep Project, James Mciver, Mark W. Brunson, Steve Bunting, Jeanne C. Chambers, Paul Doescher, James Grace, April Hulet, Dale Johnson, Steve Knick, Richard Miller, Mike Pellant, Fred Pierson, David A. Pyke, Benjamin Rau, Kimberly Rollins, Bruce Roundy, Eugene W. Schupp, Robin Tausch, Christopher Jason Williams
A Synopsis Of Short-Term Response To Alternative Restoration Treatments In Sagebrush-Steppe: The Sagestep Project, James Mciver, Mark W. Brunson, Steve Bunting, Jeanne C. Chambers, Paul Doescher, James Grace, April Hulet, Dale Johnson, Steve Knick, Richard Miller, Mike Pellant, Fred Pierson, David A. Pyke, Benjamin Rau, Kimberly Rollins, Bruce Roundy, Eugene W. Schupp, Robin Tausch, Christopher Jason Williams
Articles
The Sagebrush Steppe Treatment Evaluation Project (SageSTEP) is an integrated long-term study that evaluates ecological effects of alternative treatments designed to reduce woody fuels and to stimulate the herbaceous understory of sagebrush steppe communities of the Intermountain West. This synopsis summarizes results through 3 yr posttreatment. Woody vegetation reduction by prescribed fire, mechanical treatments, or herbicides initiated a cascade of effects, beginning with increased availability of nitrogen and soil water, followed by increased growth of herbaceous vegetation. Response of butterflies and magnitudes of runoff and erosion closely followed herbaceous vegetation recovery. Effects on shrubs, biological soil crust, tree cover, surface …
Resilience To Stress And Disturbance, And Resistance To Bromus Tectorum L. Invasion In Cold Desert Shrublands Of Western North America, Jeanne C. Chambers, Bethany A. Bradley, Cynthia S. Brown, Carla D'Antonio, Matthew J. Germino, James B. Grace, Stuart P. Hardegree, Richard F. Miller, David A. Pyke
Resilience To Stress And Disturbance, And Resistance To Bromus Tectorum L. Invasion In Cold Desert Shrublands Of Western North America, Jeanne C. Chambers, Bethany A. Bradley, Cynthia S. Brown, Carla D'Antonio, Matthew J. Germino, James B. Grace, Stuart P. Hardegree, Richard F. Miller, David A. Pyke
Articles
Alien grass invasions in arid and semi-arid ecosystems are resulting in grass–fire cycles and ecosystem-level transformations that severely diminish ecosystem services. Our capacity to address the rapid and complex changes occurring in these ecosystems can be enhanced by developing an understanding of the environmental factors and ecosystem attributes that determine resilience of native ecosystems to stress and disturbance, and resistance to invasion. Cold desert shrublands occur over strong environmental gradients and exhibit significant differences in resilience and resistance. They provide an excellent opportunity to increase our understanding of these concepts. Herein, we examine a series of linked questions about (a) …