scholarly journals Restoration handbook for sagebrush steppe ecosystems with emphasis on greater sage-grouse habitat—Part 1. Concepts for understanding and applying restoration

Circular ◽  
2015 ◽  
Author(s):  
David A. Pyke ◽  
Jeanne C. Chambers ◽  
Mike Pellant ◽  
Steven T. Knick ◽  
Richard F. Miller ◽  
...  
Circular ◽  
2015 ◽  
Author(s):  
David A. Pyke ◽  
Steven T. Knick ◽  
Jeanne C. Chambers ◽  
Mike Pellant ◽  
Richard F. Miller ◽  
...  

Circular ◽  
2017 ◽  
Author(s):  
David A. Pyke ◽  
Jeanne C. Chambers ◽  
Mike Pellant ◽  
Richard F. Miller ◽  
Jeffrey L. Beck ◽  
...  

2010 ◽  
Vol 86 (2) ◽  
pp. 47-56 ◽  
Author(s):  
Carrie Caselton Lowe ◽  
Sara M. Birch ◽  
Stephen P. Cook ◽  
Frank Merickel

2012 ◽  
Vol 65 (4) ◽  
pp. 362-370 ◽  
Author(s):  
Robert P. Breckenridge ◽  
Maxine Dakins ◽  
Stephen Bunting ◽  
Jerry L. Harbour ◽  
Randy D. Lee

2020 ◽  
Author(s):  
M M Crowell ◽  
K T Shoemaker ◽  
M D Matocq

Abstract Sagebrush-steppe ecosystems are one of the most imperiled ecosystems in North America and many of the species that rely on these habitats are of great conservation concern. Pygmy rabbits (Brachylagus idahoensis) are one of these species. They rely on sagebrush year-round for food and cover, and are understudied across their range in the intermountain west due in part to their recalcitrance to standard capture techniques. Identifying an efficient and minimally biased trapping method therefore is a critical first step in learning more about this species. We assessed how trap orientation and weather characteristics influenced trap success for Tomahawk traps placed in and around pygmy rabbit burrows by carrying out trapping surveys at 16 occupied pygmy rabbit sites across the Great Basin from 2016 to 2018. We found that pygmy rabbits had a greater probability of being captured in traps with the open end facing away from burrow entrances. Pygmy rabbits also were more likely to be captured on clear days (0–5% cloud cover) and during periods of cooler temperatures during summer months (June–August). We found no evidence that sex or age ratios differed, or that individuals differed meaningfully, in their preference for certain trap orientations. To increase trap success for pygmy rabbits, we suggest maximizing trapping effort during summer months, at dawn, and maximizing the proportion of Tomahawk traps facing away from burrow entrances. We anticipate that our monitoring protocol will enable more effective research into the ecology and conservation of this cryptic and potentially imperiled species.


1987 ◽  
Vol 41 (2) ◽  
pp. 125-132 ◽  
Author(s):  
Jon E. Swenson ◽  
Claire A. Simmons ◽  
Charles D. Eustace
Keyword(s):  

2006 ◽  
Vol 367 (1) ◽  
pp. 222-233 ◽  
Author(s):  
Mark A. Engle ◽  
Mae Sexauer Gustin ◽  
Dale W. Johnson ◽  
James F. Murphy ◽  
Wally W. Miller ◽  
...  

2017 ◽  
Vol 134 (1-2) ◽  
pp. 57-76 ◽  
Author(s):  
Stacy G. Schwabedissen ◽  
Kathleen A. Lohse ◽  
Sasha C. Reed ◽  
Ken A. Aho ◽  
Timothy S. Magnuson

2018 ◽  
Author(s):  
Karun Pandit ◽  
Hamid Dashti ◽  
Nancy F. Glenn ◽  
Alejandro N. Flores ◽  
Kaitlin C. Maguire ◽  
...  

Abstract. Gross primary production (GPP) is one of the most critical processes in the global carbon cycle, but is difficult to quantify in part because of its high spatiotemporal variability. Direct techniques to quantify GPP are lacking, thus, researchers rely on data inferred from eddy covariance (EC) towers and/or ecosystem dynamic models. The latter are useful to quantify GPP over time and space because of their efficiency over direct field measurements and applicability to broad spatial extents. However, such models have also been associated with internal uncertainties and complexities arising from distinct qualities of the ecosystem being analyzed. Widely distributed sagebrush-steppe ecosystems in western North America are threatened by anthropogenic disturbance, invasive species, climate change, and altered fire regimes. Although land managers have focused on different restoration techniques, the effects of these activities and their interactions with fire, climate change, and invasive species on ecosystem dynamics are poorly understood. In this study, we applied an ecosystem dynamic model, Ecosystem Demography (EDv2.2), to parameterize and predict GPP for sagebrush-steppe ecosystems in the Reynolds Creek Experimental Watershed (RCEW), located in the northern Great Basin. Our primary objective was to develop and parameterize a sagebrush (Artemisia spp.) shrubland Plant Functional Type (PFT) for use in the EDv2.2 model, which will support future studies to model estimates of GPP under different climate and management scenarios. To accomplish this, we employed a three-tiered approach. First, to parameterize the sagebrush PFT, we fitted allometric relationships for sagebrush using field-collected data, gathered information from existing sagebrush literature, and borrowed values from other PFTs in EDv2.2. Second, we identified the five most sensitive parameters out of thirteen that were found to be influential in GPP prediction based on previous studies. Third, we optimized the five parameters using an exhaustive search method to predict GPP, and performed validation using observations from two EC sites in the study area. Our modeled results were encouraging, with reasonable fidelity to observed values, although some negative biases (i.e., seasonal underestimates of GPP) were apparent. We expect that, with further refinement, the resulting sagebrush PFT will permit explicit scenario testing of potential anthropogenic modifications of GPP in sagebrush ecosystems, and will contribute to a better understanding of the role of sagebrush ecosystems in shaping global carbon cycles.


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