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Treeline Response to Climate: Up, Down, All Around
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About The Presenter
Connie Millar, Sierra Nevada Research Center, USDA Forest Service PSW Research Station, Albany and Lee Vining, CA.
About This Presentation
Running time: 42 minutes and 22 seconds
Given:
Production by: M.J. Furniss and J. Guntle, Communications and Applications, PNW and PSW Research Stations
Topics covered:
- Treeline Response to Climate
- CLIMATE: The Bigger Picture
- CLIMATE: The Current Picture
- 21st Century Projections
- Trends in the West—A Sampler
- Droughts
- Snowpack Melting
- Glaciers
- Forest Densification and Expansion
- Forest Mortality
- Wildfire and Climate Connection
- Mean Temperature and Precipitation
- Subalpine and Alpine Zones
- Upper Elevation Forests
- ...Go to Heaven
- Premise
- General Subalpine Forest Infilling
- Gaylor Park and West Flank Mount Dana, Yellowstone National Park
- Treeline Zone Infilling
- Tree Dates
- Colonization of Formerly Persistent Snowfields
- Primary Response Is to Rising Temperature
- Colonization of Subalpine Meadows
- Episodic Colonization: 1945 - 1976
- Meadow Colonization Is Readily Reversible
- Change in Form and Growth
- Mild and Harsh Conditions
- Flag Development Is Also Episodic
- Stem Growth
- Change in Drought and Insect and Disease Effects
- Death Dates
- Change in Genetic Diversity and Adaptation
- Change in Subalpine Zone Fire Relationships
- Change in Aspect
- Ages of Individual Trees
- Differential Shifts in Elevation
- Deadwood Stem Dates
- Deadwood Species
- Differences Modeled Between ...
- Differential Shifts in Elevation
- Highest Elevation Sites, High Densities Limber Pine
- Shifts Down in Elevation With Warming and Drying
- ... Recruiting Below Lower Treeline
- Other Examples
- Synchronous Shifts Up in Elevation With Warming
- Just a Note...
- Responses Often Show ...
- Subalpine Forests Respond Complexly to Climate
- Pikas