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Last modified
7/28/2009 2:42:09 PM
Creation date
4/30/2008 2:44:24 PM
Metadata
Fields
Template:
Weather Modification
Contract/Permit #
14-06-D-7052
Title
Ecological Impacts of Snowpack Augmentation in the San Juan Mountains, Colorado
Date
3/1/1976
State
CO
Weather Modification - Doc Type
Report
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<br />Summary of expected impacts <br /> <br />Table <br /> <br />Report <br />reference <br /> <br />Comments <br /> <br />--- <br />Expected Detectability c <br /> <br />Valueb) <br /> <br />Strengtha) <br /> <br />Studied Attribute <br /> <br />Long Term <br />(7' 5 yr.) <br /> <br />Short Term <br />(<' 5 yr.) <br /> <br />PRODUCERS <br /> <br />Webber et al <br /> <br />John <br />Sweeney <br /> <br />Increased habitat for rare <br />species . <br /> <br />Change in late summer mois- <br />ture <br /> <br />Med <br /> <br />Low <br /> <br />Low <br /> <br />None <br /> <br />+2 <br /> <br />o <br /> <br />2 <br /> <br />Alpine Tundra <br /> <br />_S~r_u b <br />- Oak community <br /> <br />Floristics <br /> <br />CQ~~5ty_S~ruct~r~ <br /> <br />Dix and <br />Richards <br /> <br />Based on long standing <br />patterns. Effect through <br />survival of fir seedlings <br /> <br />High <br />High <br />High <br />High <br /> <br />Low <br />Low <br />Low <br />Low <br /> <br />-1 <br /> <br />o <br /> <br />Forest <br />- Aspen Community <br />- Fir Community <br />- Spruce-Fir Community <br />- Spruce Community <br /> <br />al <br /> <br />Webber et <br /> <br />Based on long-standing <br />patterns, genecological <br />studies, and snow cover dur- <br />ation and soil moisture effects <br /> <br />No effects observed <br /> <br />Low <br />Low <br />Med <br />High <br /> <br />None <br /> <br />Low <br />Low <br />Low <br />Low <br /> <br />None <br /> <br />o <br /> <br />1 <br /> <br />Tundra <br />- Fellfield Community <br />- Kobresia Community <br />- Geum Community <br />Snowbank Community <br /> <br />John <br />Sweeney <br />Mogren/ <br />Fechner/Reid <br /> <br />o <br /> <br />-1 <br /> <br />o <br /> <br />o <br /> <br />- Oak <br /> <br />Aspen <br /> <br />Production <br /> <br />.... <br />(.oJ <br /> <br />Slight decrease through <br />moisture stress and abbre- <br />viated growing season <br /> <br />Low <br /> <br />Low <br /> <br />Sleeper/ <br />Spencer <br /> <br />Jim Sweeney <br /> <br />Lowered no. of litters/year <br />because of delayed snowmelt <br /> <br />Winter mortality through <br />reduced winter range and <br />some calving loss. <br /> <br />No effect observed <br /> <br />Low <br />Low <br /> <br />Med <br /> <br /> <br /> <br />None <br /> <br />Low <br />Med <br /> <br />Med <br /> <br /> <br /> <br />None <br /> <br />-1 <br /> <br />-1 <br /> <br /> <br />o <br /> <br />2 <br /> <br />Deer mouse <br />Vole <br /> <br />Elk <br /> <br />Reproduction <br /> <br />Population Size <br /> <br />Stoecker/ <br />Steinhoff <br /> <br />o <br /> <br />Gopher <br /> <br />Sleeper/ <br />Steinhoff <br /> <br />from <br /> <br />Higher mortality <br />delayed snowmelt <br /> <br />High <br /> <br />High <br /> <br />-2 <br /> <br />2 <br /> <br />Deer mouse <br /> <br />Strength of relationship between <br /> <br />a) <br />b) <br /> <br />c) <br /> <br />attribute, not snow augmentation and attribute (Appendix A) <br />(Appendix A) <br /> <br />snow and <br /> <br />Rating System <br /> <br />text <br /> <br />As in Bureau of Reclamation <br /> <br />Detectability as defined in <br />
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