Data

To relate water levels in our study wetlands to temperature, precipitation, wetland water depth, and amphibian calling activity, we installed one pressure logger in the deepest spot we could find in each wetland. Soon after thawing conditions allowed, we drove a plastic pipe (anchor pipe) into the sediments at the deepest location and secured another pipe to it that contained one...

To describe calling activity of Pseudacris crucifer in relation to temperature, precipitation, and wetland water levels, we programmed an acoustic recorder (Wildlife Acoustics) to sample seasonal amphibian calls remotely at study site SC4DAI2 in the St. Croix National Scenic Riverway from 2008 to 2012. We programmed the recorder to sample for five minutes at the top of every hour of...

To help determine when winter conditions were changing to spring conditions annually in our four study areas, we determined the first eight-day interval (in accordance with the scale limitations of satellite data we used to assess the presence of snow) during which the first amphibian of the season called at each of our study wetlands in those areas. To do this, we examined contour plots...

To better understand relations of annual calling phenophases for Pseudacris crucifer, and of the first calls of the season for Hyla chrysoscelis/versicolor, to the timing of the start of the calling season, we compared these dynamics for six wetlands in the St. Croix National Scenic Riverway from 2008 to 2012. We installed an acoustic recorder at each site prior to the start of each...

Provides U.S. Geological Survey developed and published regression equations for estimating streamflow statistics such as mean annual and monthly mean flows, flow-duration percentiles, and peak and low flows.

Provides multiple water use resources, such as categories, source types, use types as well as watershed summary resource, which aggregate selected source time series by watershed location to provide a simple annual and monthly watershed summary; grouped by defined source, use, category, and month to watershed managers.

Provides a geostatistical variogram model for correlating ungaged locations to USGS gages for implemented locations.

Provides core StreamStats functionality, such as watershed delineation, basin characteristics and flow statistics.

Provides network connectivity for spatial datasets, such as stream trace, network path and flow path.

A series of linear regression models were developed and calibrated for the Minnesota and Mississippi Rivers. The linear regression models were calibrated using acoustic and suspended-sediment concentration data collected from March through November 2016 and 2017. The estimates of suspended-sediment concentrations from the linear regression were used to calculate loads. The calibrated...

This dataset was used to evaluate bigheaded carp movement (net and total) between the upper and lower Illinois River and to create a multistate model in Program MARK to estimate movement probabilities among river pools.

The environmental fate, persistence, and point-source discharge of traditional molluscicidal compounds led to the development of an alternative biomolluscicide, Zequanox. Previous studies evaluated the efficacy and non-target animal safety of Zequanox in laboratory, mesocosm, and field enclosure studies. One study indicated sensitivity of salmonid species and lake sturgeon (Acipenser...