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Person

Laura Perry

Scientist

Fort Collins Science Center

Email: perryl@usgs.gov
Office Phone: 970-226-9196
Fax: 970-226-9230

Location
NRRC Bldg C
2150 Centre Avenue
Building C
Fort Collins , CO 80526-8118
US

Supervisor: Sharon K Taylor
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This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas River, and South Platte River (281,946 square kilometers). The 238 sites are a stratified random sample of all bridge crossings in the river basins, with roughly equal numbers of sites in landscapes dominated by (1) urban and residential (developed) land-use, (2) agricultural (cultivated) land-use, and (3) undeveloped land cover. The dataset includes field observations of stem counts for three non-native riparian woody plant taxa (Tamarix ramosissima x T. chinensis...
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This dataset presents observations and model projections of climate, riparian cottonwood and willow seed release phenology, snowmelt streamflow timing, and relative timing of seed release and snowmelt peak streamflow in the upper South Platte River Basin, USA. We collected field observations of seed release phenology from three riparian Salicaceae species at 14 riparian sites and used those observations to develop 2-3 temperature-driven phenology models for each species. We used those phenology models, together with PRMS hydrological models of streamflow at six of the sites, to simulate historical phenology, snowmelt streamflow timing, and relative timing based on gridded temperature data from 1961-1990 and to project...
Water management planners and researchers throughout the world rely on hydrological models to forecast and simulate streamflow hydrology and hydrological events. These simulations are used to inform water management, municipal planning, and ecosystem conservation decisions, as well as to investigate potential effects of climate and land-use change on hydrology.
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