Variation in Sagebrush Communities Historically Seeded with Crested Wheatgrass in the Eastern Great Basin
| Autor: | Kevin L. Gunnell, Jamin K. Johanson, Thomas A. Monaco, Justin R Williams, Lesley R. Morris |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Ecology Soil texture Species diversity Plant community Introduced species Ecological succession Vegetation Management Monitoring Policy and Law Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences 010601 ecology Agropyron cristatum Animal Science and Zoology Ecosystem Nature and Landscape Conservation |
| Zdroj: | Rangeland Ecology & Management. 70:683-690 |
| ISSN: | 1550-7424 |
| DOI: | 10.1016/j.rama.2017.05.003 |
| Popis: | Although crested wheatgrass (Agropyron cristatum [L] Gaertn. & A. desertorum [Fisch. ex Link] Schult.) has been one of the most commonly seeded exotic species in the western United States, long-term successional trajectories of seeded sites are poorly characterized, especially for big sagebrush (Artemisia tridentata Nutt.) ecosystems in the Great Basin. Interpreting successional trajectories is particularly difficult because many seeded sites were actively managed with subsequent treatments to kill sagebrush and sustain high forage productivity of crested wheatgrass plants. In addition, inherent differences in climate, topography, soils, and disturbance regimes may lead to variable vegetation structure and species composition among seeded sites. To clarify variation in successional trajectories, we measured vegetation composition, plant species diversity, ground cover, and soil properties in 38 historical crested wheatgrass seedings distributed across 146 sampling sites that lacked subsequent sag... |
| Databáze: | OpenAIRE |
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