73 research outputs found

    Floating and Submerged Plants of Utah: Pocket Field Guide

    Get PDF
    This is a field guide to identifying floating and submerged plants of Utah. We include a page for each species and also a dichotomous key at the end for the pondweeds. Submerged and floating plant species play critical roles in aquatic ecosystems. They provide habitat to aquatic organisms, improve water clarity by trapping sediment, and absorb excess nutrients from the water column, among other vital services. However, they have been threatened and degraded by pollution, land conversion, and introductions of harmful species. Identifying native and non-native plants is an important component of tackling this degradation and promoting the conservation and restoration of aquatic plant communities

    Everybody’s Publishing but Me! How a Writing Group Can Help Actualize Your Publishing Dreams

    Get PDF
    On any given day, one can go to the Chronicle of Higher Education and see a new article on the trials and tribulations of publishing and seeking tenure in academia. Anxiety inducing titles such as “Measuring Up” and “The Stress of Academic Publishing” reaffirm the notion that one must publish, or perish. While this type of pressure pushes some to success, for others, it makes it harder to write. However, you don’t have to travel this writing and publishing road alone. Inspired by the book Every Other Thursday: Stories and Strategies from Successful Women Scientists by Ellen Daniell, a small group of women academics and professionals in Logan, Utah found their support team through the creation of a writing group in Spring 2009

    Abiotic and Landscape Factors Constrain Restoration Outcomes Across Spatial Scales of a Widespread Invasive Plant

    Get PDF
    The natural recolonization of native plant communities following invasive species management is notoriously challenging to predict, since outcomes can be contingent on a variety of factors including management decisions, abiotic factors, and landscape setting. The spatial scale at which the treatment is applied can also impact management outcomes, potentially influencing plant assembly processes and treatment success. Understanding the relative importance of each of these factors for plant community assembly can help managers prioritize patches where specific treatments are likely to be most successful. Here, using effects size analyses, we evaluate plant community responses following four invasive Phragmites australis management treatments (1: fall glyphosate herbicide spray, 2: summer glyphosate herbicide spray, 3: summer imazapyr herbicide spray, 4: untreated control) applied at two patch scales (12,000 m2 and 1,000 m2) and monitored for 5 years. Using variation partitioning, we then evaluated the independent and shared influence of patch scale, treatment type, abiotic factors, and landscape factors on plant community outcomes following herbicide treatments. We found that Phragmites reinvaded more quickly in large patches, particularly following summer herbicide treatments, while native plant cover and richness increased at a greater magnitude in small patches than large. Patch scale, in combination with abiotic and landscape factors, was the most important driver for most plant responses. Compared with the small plots, large patches commonly had deeper and more prolonged flooding, and were in areas with greater hydrologic disturbance in the landscape, factors associated with reduced native plant recruitment and greater Phragmites cover. Small patches were associated with less flooding and landscape disturbance, and more native plants in the surrounding landscape than large patches, factors which promoted higher native plant conservation values and greater native plant cover and richness. Herbicide type and timing accounted for very little of the variation in native plant recovery, emphasizing the greater importance of patch selection for better management outcomes. To maximize the success of treatment programs, practitioners should first manage Phragmites patches adjacent to native plant species and in areas with minimal hydrologic disturbance

    Strategies to Secure Water for Great Salt Lake

    Get PDF
    Great Salt Lake is the largest saline lake in the Western Hemisphere (Wilsey et al. 2017) and plays an important role in Utah’s economy, environment, and ecology (Baxter and Butler 2020; Great Salt Lake Advisory Committee 2021). It has a long history of commercial and recreational activities including mineral production, brine shrimp harvesting, waterfowl hunting, boating, and sightseeing (Utah Department of Natural Resources 2013a, 2013b). The Great Salt Lake ecosystem supports over 10 million birds representing 338 species and acts as an important stopover for migratory birds between North and South America (Great Salt Lake Ecosystem Program; Wilsey et al. 2017). In 1991, Great Salt Lake was designated as a site of “hemispheric importance” by the Western Hemisphere Shorebird Reserve Network (Wilsey et al. 2017)

    Sustaining Wetlands to Mitigate Disasters and Protect People

    Get PDF
    Hurricanes, flooding, droughts. Weather‐related disasters are dominating news cycles and causing widespread destruction, most recently with Typhoon Mangkhut and Hurricane Florence. The US had the most catastrophic hurricane season on record in 2017, with hundreds of billions of dollars in estimated damages. California is experiencing unprecedented tragedies from widespread wildfires and increased vulnerability to storms. Disasters that were once uncommon appear to be the new norm globally, and evidence suggests the frequency and impacts of extreme events will increase further with climate change

    Systems Modeling to Improve the Hydro-Ecological Performance of Diked Wetlands

    Get PDF
    Water scarcity and invasive vegetation threaten arid-region wetlands and wetland managers seek ways to enhance wetland ecosystem services with limited water, labor, and financial resources. While prior systems modeling efforts have focused on water management to improve flow-based ecosystem and habitat objectives, here we consider water allocation and invasive vegetation management that jointly target the concurrent hydrologic and vegetation habitat needs of priority wetland bird species. We formulate a composite weighted usable area for wetlands (WU) objective function that represents the wetland surface area that provides suitable water level and vegetation cover conditions for priority bird species. Maximizing the WU is subject to constraints such as water balance, hydraulic infrastructure capacity, invasive vegetation growth and control, and a limited financial budget to control vegetation. We apply the model at the Bear River Migratory Bird Refuge on the Great Salt Lake, Utah, compare model-recommended management actions to past Refuge water and vegetation control activities, and find that managers can almost double the area of suitable habitat by more dynamically managing water levels and managing invasive vegetation in August at the beginning of the window for control operations. Scenario and sensitivity analyses show the importance to jointly consider hydrology and vegetation system components rather than only the hydrological component

    Future of Great Salt Lake Survey

    Get PDF
    The Future of Great Salt Lake Survey was conducted in fall 2022 when state and global attention on Great Salt Lake was ramping up, following record lows of the elevation of lake water levels. In the survey, we asked Utahns their opinions on securing water for Great Salt Lake and focused on strategies that individuals, local communities, and the state of Utah could pursue. When it comes to how water is used and managed in Utah, there are multiple actors and institutions who all make decisions and have authority or ability to take different actions. While the state of Utah can guide growth and development and manages the state’s water resources, local county, city and town governments are primarily responsible for land use planning and delivering water to their residents. We also sought to understand what individuals would commit to do for Great Salt Lake and under what conditions. Understanding Utahns’ support for strategies across the three scales of the state, local communities, and individual is helpful, because actions across all three scales are not always coordinated. With greater emphasis on coordination and cooperation to solve the problem of a drying Great Salt Lake, the results of our survey are intended to help policymakers better implement strategies across the three scales

    Isolation of 11 Polymorphic Tri- and Tetranucleotide Microsatellite Loci in a North American Sedge (\u3ci\u3eCarex scoparia\u3c/i\u3e: Cyperaceae) and Cross-Species Amplification in Three Additional \u3ci\u3eCarex\u3c/i\u3e Species

    Get PDF
    We report on the isolation and evaluation of 11 microsatellites from a widespread eastern North American wetland sedge, Carex scoparia. Loci exhibit 3–9 alleles over five populations and significant FIS (0.204–0.717) in most populations. All primers cross-amplify in at least two other species, and 10 cross-amplify in the more distantly related C. stipata. These markers will be used to examine population genetics and patterns of chromosomal diversification in this ecologically important sedge species and its relatives

    Invasive Phragmites australis Management Outcomes and Native Plant Recovery Are Context Dependent

    Get PDF
    The outcomes of invasive plant removal efforts are influenced by management decisions, but are also contingent on the uncontrolled spatial and temporal context of management areas. Phragmites australis is an aggressive invader that is intensively managed in wetlands across North America. Treatment options have been understudied, and the ecological contingencies of management outcomes are poorly understood. We implemented a 5‐year, multi‐site experiment to evaluate six Phragmites management treatments that varied timing (summer or fall) and types of herbicide (glyphosate or imazapyr) along with mowing, plus a nonherbicide solarization treatment. We evaluated treatments for their influence on Phragmites and native plant cover and Phragmites inflorescence production. We assessed plant community trajectories and outcomes in the context of environmental factors. The summer mow, fall glyphosate spray treatment resulted in low Phragmites cover, high inflorescence reduction, and provided the best conditions for native plant recruitment. However, returning plant communities did not resemble reference sites, which were dominated by ecologically important perennial graminoids. Native plant recovery following initial Phragmites treatments was likely limited by the dense litter that resulted from mowing. After 5 years, Phragmites mortality and native plant recovery were highly variable across sites as driven by hydrology. Plots with higher soil moisture had greater reduction in Phragmites cover and more robust recruitment of natives compared with low moisture plots. This moisture effect may limit management options in semiarid regions vulnerable to water scarcity. We demonstrate the importance of replicating invasive species management experiments across sites so the contingencies of successes and failures can be better understood

    Restoring Lake Urmia: Moving beyond a Uniform Lake Level (2-page Summary)

    Get PDF
    More than 5 million people live near Lake Urmia in northwestern Iran, one of the world\u27s largest hypersaline lakes. Over the past two decades, the lake has lost 95% of its volume, lake level has dropped more than 7 m, and lake restoration has gained widespread interest. The government seeks a uniform ecological target lake level of 1274.1 m above sea level to lower salinity below 240 gL-1 and recover brine shrimp (Artemia spp.) and flamingos (Phoenicopterus roseus). We have synthesized over 40 years of available data, defined 8 ecosystem services for human health, water quality, ecology, recreation, and economy (Box 1), and related each service to lake levels with uncertainties (Box 2)
    corecore