Ecosystem dynamics and disturbance in mountain wildernesses: assessing vulnerability of natural resources to change

Fagre DB and Paterson DL. 2000. Ecosystem dynamics and disturbance in mountain wildernesses: assessing vulnerability of natural resources to change. MTNEXP.PAP. USDA Forest Service

"An integrated program of ecosystem modeling and extensive field studies at Glacier and Olympic National Parks has quantified many of the ecological processes affected by climatic variability and disturbance. Models have successfully estimated snow distribution, annual watershed discharge, and stream temperature variation based on seven years of monitoring. Various climatic scenarios were applied with the models to examine potential future wilderness conditions. This modeling indicates that reduced net primary productivity and altered disturbance patterns can be expected in dry, east-side forest ecosystems in Montana and Washington under climatic warming. In addition, empirical studies show that climatic variability has strong teleconnections with tree growth and regeneration at annual to decadal scales, resulting in predictable, directional changes under different climatic scenarios. A transect of mountain bioregions from the Pacific Coast to the Rocky Mountains, which builds on past research, is determining how future climatic variability will affect wilderness in the context of regional ecosystem dynamics."

Type
Published Report
Authors
Fagre, Daniel; Paterson, D
Date of Issue
2000
Publisher
USDA Forest Service
Units
GLAC , OLYM
Keywords
Climate Change, Discharge, Ecology, Glacier National Park MT, Modeling, Olympic National Park WA, Primary Productivity, Rivers & Streams, Snow, Trees, Water Temperature

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