North American GLORIA A CIRMOUNT Work-Group Project Connie Millar USDA Forest Service Sierra Nevada Research Ctr Albany, CA USA cmillar@fs. fed. us Dan Fagre USGS Science Center Glacier National Park W. Glacier, MT USA dan_fagre@usgs. gov Dedicated to two very special GLORIA pioneers: Georg & Hari Georg, June in California *A collaborative, interdisciplinary research consortium dedicated to understanding climate and its effects on western North American mountain ecosystems and resources *Seeks to improve knowledge of high-elevation climate systems and integrate knowledge of mountain ecosystem response to climate into natural resource management and policy CIRMOUNT Coordinators: Co-Chairs: Henry Diaz, NOAA, Constance Millar, USFS, PSW Research Daniel Cayan, UCSB, SCRIPPS Michael Dettinger, USGS, WRD Daniel Fagre, USGS, BRD Lisa Graumlich, Mont St Univ Gregory Greenwood, Mtn Res Init Malcolm Hughes, Univ AZ, LTRR David Peterson, USFS, PNW Research Frank Powell, UCSD, WMRS Kelly Redmond, West Reg Climate Ctr, DRI Nathan Stephenson, USGS, BRD Thomas Swetnam, Univ AZ, LTRR Connie Woodhouse, NOAA, Paleoclimatology Coast Range Mountainous Regions of Western North America Cascades Sierra Nevada SW Desert Ranges Basin Ranges Rocky Mtns Diversity of Bio-Climatic Mountain Regions Great Basin Ranges Canadian Coast Range K Swerhun N Cascades C Millar Sierra Nevada S Mitchell C Millar GLORIA Multi-Summit Target Regions Planned 5. N Cascades 6. BC Coast Range 7. Niwot Ridge LTER 8. San Juan Mtns 6 Completed (# summits) 9. Lake Tahoe Basin 1 5 1. Glacier National Park GNP 4 2. Sierra Nevada SND 4 3. White Mtns WIM (granitic) 4 4. White Mtns WDS (dolomite) 3 9 2 3, 4 8 7 Glacier National Park GLORIA Northern Rocky Mountains, Montana GNP, Fagre Seward 2717m Pitamakan 2493m Glacier National Park GLORIA GNP, Northern Rocky Mountains, Montana Bison Head 2387m Dancing Lady 2245m Number of Species: ________Summit_________ Low Mid 1 Mid 2 High 51 82 59 39 ___Region__ Exotic Total 1 136 A few conclusions from the Glacier National Park (GNP) GLORIA * Difficult to find sites in this region due to: - steep/glaciated terrain - treeline influenced by site more than elevation * High species diversity: 51 to 82 taxa/summit, total 136 * Slope and aspect were important diversity factors * Souring winds are particularly associated with aspect * Four species were common throughout: Smelowskia calycina var americana, Polemonium viscosum, Achillea millefolium, Erigeron compositus var glabratus, Potentilla fruticosa Sierra Nevada GLORIA SND, California, Dennis/Millar 3749m 3570m 3322m Hulsea algida Mt Dunderberg Leptodactylon pungens Sierra Nevada GLORIA SND, California 3341m Cassiope mertensiana Number of Species - number unique Low Sierra 38 18 Mid 1 36 8 Mid 2 High 13 22 3 5 Exotic 0 Region 65 White Mountains – Granitic/Volc GLORIA WIM, California Dennis/Millar 3975m 4285m 4285m 3722m White Mountains – Granitic GLORIA WIM, California 3258m Number of Species - number unique WIM Low 25 14 Mid 1 26 6 Mid 2 High 21 7 7 4 Exotic 1 Region 54 A few conclusions from Sierra Nevada (SND) vs White Mtns (WIM) GLORIA studies: * 65 taxa SND, 51 WIM, 25 in common * Only one non-native species, found in WIM * Greater species diversity at lower than higher summits: -38 vs 13 SND; 26 vs 7 WIM; -low captures transitional flora * Aspect not a strong determinant * 2 major structural elements: widespread, cosmopolitan montane group (Sierran/Great Basin) + alpine flora (ground-hugging/cushion plants) White Mountains – Dolomite GLORIA WDS, California, Dennis/Millar 3734m 3490m 3612m Piloted new quantitative method for estimating cover in summit area sections (SAS) – fixed 10m x 10 m plots, --Dennis, 2005 Assessed repeatability of methods with different botanists using GLORIA occular method and new approach Point estimates every 1m along 100 m line, 10 traverses Satellite studies 10m x 10m plot in each SAS •Butterfly census •Microbial study •Geomorphology Some results from WDS (carbonate) & compared to WIM (non-carbonate): * 46 total species on 3 WDS summits * 19 new – ie, not found in WIM summits * Abundant species were common between WIM & WDS * Elymus elymoides was ubiquitous * Eriogonum gracilipes, Phlox condensata, and Erigeron pygmaeus were dominant members of the alpine matforming community * Shrub/subshrub community abundant on WIM missing on WDS * No exotic species were found within plots North Cascades National Park GLORIA North Cascades, Washington NOC, Mitchell Photos S Mitchell Planned summits Canadian Coast Range GLORIA British Columbia, Canada Swerhun & Smith Photos K Swerhun Planned summits BERGHEIL!