Quaking Aspen in a High-Use Recreation Area: Challenges of People, Ungulates, and Sodium on Landscape Resilience

Georgie Corkery, Anna B. Miller and Paul C. Rogers ()
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Georgie Corkery: Department of Environment & Society, Utah State University, Logan, UT 84322, USA
Anna B. Miller: Department of Environment & Society, Utah State University, Logan, UT 84322, USA
Paul C. Rogers: Department of Environment & Society, Utah State University, Logan, UT 84322, USA

Land, 2024, vol. 13, issue 7, 1-21

Abstract: Quaking aspen ( Populus tremuloides Michx.) landscapes are valued for their biodiversity, water retention, fire mitigation, aesthetics, and recreation opportunities. Across North America, some aspen populations are experiencing population declines as they face uninhibited ungulate browsing, drought, fire suppression, insects, disease, and inappropriate management. Increased human development and recreational use within aspen landscapes can serve as additive stressors, though there is a dearth of literature examining these elements. At a popular recreational area in Utah, USA, identifying the cause of apparent decline within a larger aspen community is complicated by development upstream and recreation-related activities. We sought to (1) assess the overall condition of the aspen at the site, (2) understand key variables that influence aspen conditions, and (3) elucidate how aspen fitness varies across the site. We collected data from forty-five plots using established aspen sampling methods, including ungulate presence, tree characteristics, soil chemistry, and environmental descriptors. Results suggest that a combination of higher levels of browsing and elevated soil sodium may be causing premature mortality and limiting aspen recruitment in a portion of the study area. These findings will inform future management at this site, as well as similar recreational forest settings experiencing compound stressors.

Keywords: herbivory; forests; soils; monitoring; Populus tremuloidies; mule deer; elk; sodium adsorption ratio; biodiversity; management (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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