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Filters: partyWithName: Climate Adaptation Science Centers (CASC) Program (X) > partyWithName: Larissa Yocom (X)

Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Southwest CASC > FY 2023 Projects ( Show all descendants )

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Aspen is a highly valued tree species in western forests, but it has been declining due to drought, herbivory, and fire suppression. Fire suppression has contributed to aspen’s decline because post-fire environments provide more opportunities for aspen to regenerate, both by resprouting and by seed. Regeneration from seed in these post-fire settings is particularly valuable because it increases aspen population genetic diversity and resilience. However, natural seeding events are not common, and mortality rates for seedlings are quite high. Nursery-grown seedlings provide a promising alternative and an opportunity for assisted migration, but planting protocols have not been well developed and mortality rates for...
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The Colorado River provides water to 40 million people in the southwestern United States. Consistent water level declines in Colorado River Basin reservoirs have focused research attention on the long-term changes in winter precipitation and the timing of snowmelt and runoff. Research on how warming temperatures affect winter precipitation and spring snowmelt is ongoing, however, less attention has been given to changes in spring and summer precipitation which also affects water supply, plant growth, and competition between native and non-native plants, and, in turn affects wildfire dynamics and wildlife habitat. The amount and timing of summer precipitation is largely influenced by variation in the North American...
    map background search result map search result map Understanding the Effects of Seasonal Precipitation Changes on Hydrology and Ecosystems in the Colorado River Basin Assessing Post-Fire Aspen Seedling Success on the Colorado Plateau Understanding the Effects of Seasonal Precipitation Changes on Hydrology and Ecosystems in the Colorado River Basin Assessing Post-Fire Aspen Seedling Success on the Colorado Plateau