Research and Publications
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Our results suggest that pollen limitation and insect herbivores limit population growth in A. utahensis similarly across the centre‐to‐north portion of its latitudinal distribution. However, because A. utahensis population growth barely reaches the level of replacement at the northern range edge, the reduction in λ resulting from these interactions may contribute to limiting expansion at the northern edge of A. utahensis’ latitudinal range.
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Of the approximately 25,000 vascular plant taxa native to the United States, 26% are sold commercially, with growth form, conservation status, distribution, and taxonomy significantly predicting availability. In contrast, only 0.07% of approximately 3,000 native nonvascular taxa are sold commercially. We also investigated how demand for germplasm to support high‐quality restoration efforts is met by vendors in the Midwestern tallgrass prairie region, which has been targeted extensively by restoration efforts for decades. In this well‐developed native plant market, 74% of more than 1,000 target species are commercially available, often from vendors that advertise genetically diverse, locally sourced germplasm. We make recommendations to build on the successes of regional markets like the tallgrass prairie region, and to fill identified gaps, including investing in research to support production, ensuring more consistent and clear demand, and fostering regional collaboration.
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Abstracts of Recent Papers on Range Management in the West. Prepared by Charlie Clements, Rangeland Scientist, USDA Agricultural Research Service, Reno, NV
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Sage grouse and many other species rely on a range of mesic habitats—including riparian areas, wet meadows, alfalfa fields, and productive rangelands—to sustain their populations. Landscapes with the greatest uncertainty in mesic abundance and distribution support the fewest grouse.
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This publication identifies areas where big sagebrush populations are most and least vulnerable to climate change and demonstrates where continued investment in sagebrush conservation and restoration could have the most impact.
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The best seed sources for restoration of Elymus elymoides in invaded sites were populations with longer roots, larger seeds and earlier emergence. These easily measured traits were strong predictors of survival in disturbed field sites. While the most successful populations were found in areas with similar abiotic conditions as planting sites, there was phenotypic variation even among populations originating from locations with similar conditions. Thus, our results indicate that abiotic conditions are important considerations when selecting seeds, but these conditions may not sufficiently predict which populations will establish. Understanding population differences in seedling functional traits can improve predictions of restoration success.
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This study found that emergency managers exhibit some of the same decision biases, sensitivity to framing, and heuristics found in studies of the general public, even when making decisions in their area of expertise. A national survey of county-level emergency managers finds that managers appear more risk averse when the outcomes of actions are framed as gains than when equivalent outcomes are framed as losses, a finding that is consistent with prospect theory. The study also found that the perceived actions of emergency managers in neighboring jurisdictions affect the choices a manager makes. In addition, our managers show evidence of attribution bias, outcome bias, and difficulties processing numerical information, particularly probabilities compared to frequencies. Each of these departures from perfect rationality points to potential shortfalls in public managers’ decision making. There are opportunities to improve decision making through reframing problems, providing training in structured decision-making processes, and employing different choice architectures to nudge behavior in a beneficial direction
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This study used focus groups with local officials and residents in McCall, Idaho, to better understand their application for formal, city-wide recognition from the Firewise program. Results indicate the importance of early public involvement in adaptation of wildfire mitigation programs because many local residents indicated confusion over what Firewise recognition meant for them. Both professionals and residents thought Firewise could improve local capacity to address risk but also identified critical needs for adapting the program, including concerns about impacts to area aesthetics, differences between seasonal and full-time residents, and support for locally based organization rather than federal or state government organization that could infringe on personal freedoms.
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This field guide is a tool for the identification of 119 common forbs found in the sagebrush rangelands and grasslands of the northern Great Basin. These forbs are important because they are either browsed directly by Greater Sage-grouse or support invertebrates that are also consumed by the birds. Species are arranged alphabetically by genus and species within families. Each species has a botanical description and one or more color photographs to assist the user. Most descriptions mention the importance of the plant and how it is used by Greater Sage-grouse.
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This study finds negligible cost differences between a typical home and a home constructed using wildfire-resistant materials and design features. Decades of research and post-fire assessments have provided clear evidence that building materials and design, coupled with landscaping on the property, are the most important factors influencing home survivability during a wildfire.