The eDNAtlas is accessed via an interactive ArcGIS Online (AGOL) map that allows users to view and download sample site information and lab results of species occurrence for the U.S. The results are primarily based on samples analyzed at the National Genomics Center for Wildlife and Fish Conservation (NGC) and associated with geospatial attributes created by the Boise Spatial Streams Group (BSSG).
The AGOL map displays results for all species sampled within an 8-digit USGS hydrologic unit or series of units. The map initially opens to the project extent, but allows users to zoom to areas of interest. Symbols indicate whether a field sample has been collected and processed at a specific location, and if the latter, whether the target species was present. Each flowing-water site is assigned a unique identification code in the database to ensure that it can be tracked and matched to geospatial habitat descriptors or other attributes for subsequent analyses and reports. Because no comparable database has been built for standing water, results for those sites lack this additional information but still provide data on the sample and species detected.
Users also have the option to Download the entire ArcGIS GeoDatabase for local use. The GeoDatabase has more information than is available from the AGOL interactive map, and enables more detailed queries, analyses, and creation of custom maps. Please refer to the individual feature classe metadata in the GeoDatabase for more specific information.
If you have questions about the ArcGIS Online map, please contact Sharon (Parkes) Payne. Questions about the eDNA sampling results can be directed to Tommy Franklin. Questions about the eDNA sampling grid can be directed to Dave Nagel. Please see the contact page for more information.
If you use these data, please cite as: Young, Michael K.; Isaak, Daniel J.; Schwartz, Michael K.; McKelvey, Kevin S.; Nagel, David E.; Franklin, Thomas W.; Greaves, Samuel E.; Dysthe, J. Caleb; Pilgrim, Kristine L.; Chandler, Gwynne L.; Wollrab, Sherry P.; Carim, Kellie J.; Wilcox, Taylor M.; Parkes-Payne, Sharon L.; Horan, Dona L. 2018. Species occurrence data from the aquatic eDNAtlas database. Fort Collins, CO: Forest Service Research Data Archive. Updated 28 February 2019. https://doi.org/10.2737/RDS-2018-0010.