North American Bat Monitoring Program (NABat) Master Sample and Grid-Based Sampling Frame: Continental United States at a 10x10km resolution

Colin Talbert Brian Reichert 201810 North American Bat Monitoring Program (NABat) Master Sample and Grid-Based Sampling Frame: Continental United States at a 10x10km resolution vector digital data Fort Collins, CO USGS Fort Collins Science Center https://doi.org/10.5066/P9O75YDV Patricia Stevens Brian Reichert 20180724 North American Bat Monitoring Program project Fort Collins, CO USGS Fort Collins Science Center https://nabatmonitoring.org/#/home/welcome The NABat sampling frame is a grid-based finite-area frame spanning Canada, the United States, and Mexico consisting of 10-km by 10-km (100-km2) grid cell sample units. This grain size is biologically appropriate given the scale of movement of most bat species, which routinely travel many kilometers each night between roosts and foraging areas and along foraging routes. A draw of sample units from a finite sampling frame using the GRTS design produces an ordered list of units such that any ordered subset of that list is also randomized and spatially balanced. This vector dataset is the individual grid-based sampling grid for Continental United States at a 10x10km resolution. The GRTS design provides solutions to several practical challenges faced by bat surveyors that are not provided by more familiar designs such as simple random, stratified, and systematic sampling. The GRTS design allows for sample site additions and deletions, supports unequal-probability selection of survey locations, and provides an approximately unbiased neighborhood-weighted variance estimator that takes advantage of the spatial structure present in the surveyed population. 2018 publication date Complete None planned -127.9449 -65.2626 51.5144 22.9170 Continental United States ISO 19115 Topic Category biota location USGS Thesaurus ecosystem monitoring USGS Metadata Identifier USGS:5b7753bde4b0f5d578820455 Common geographic areas United States None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Brian E Reichert U.S. Geological Survey, SOUTHWEST REGION Ecologist mailing address

2150 Centre Avenue Bldg C

Fort Collins CO 80526 US 970-226-9245 970-226-9230 breichert@usgs.gov Susan C. Loeb Thomas J. Rodhouse Laura E. Ellison Cori L. Lausen Jonathan D. Reichard Kathryn M. Irvine Thomas E. Ingersoll Jeremy T. H. Coleman Wayne E. Thogmartin John R. Sauer Charles M. Francis Mylea L. Bayless Thomas R. Stanley Douglas H. Johnson 201506 A Plan for the North American Bat Monitoring Program (NABat) publication https://www.srs.fs.usda.gov/pubs/gtr/gtr_srs208.pdf Patricia Stevens Brian Reichert Colin Talbert 201810 Attributed North American Bat Monitoring Program (NABat) Master Sample and Grid-Based Sampling Frame vector digital data Fort Collins, CO USGS Fort Collins Science Center https://doi.org/10.5066/P9RRWXL6 GRTS IDs were checked for consistent spatial distribution. Values were manually checked for minimum and maximum values within expected ranges. None Positional accuracy was manually checked in ArcMap NA Patricia Stevens Brian Reichert Colin Talbert 201807 North American Grid-Based Sampling Frame vector digital data Fort Collins, CO USGS Fort Collins Science Center https://doi.org/10.5066/P9M00P17 Digital and/or Hardcopy 2018 publication date NASamplingFrame The geometry and unique IDs for the 10km cells. The spsurvey package in R was used to generate a Generalized Random-Tessellation Stratified (GRTS) Survey Design draw on the 10km North American Grid-Based Sampling Frame. The 'grts' function was used with an equal design and a finite frame. 8675309 was used as the seed. withheld 201807 conus_mastersample_10km_GRTS.shp Table containing attribute information associated with the data set. Producer defined Feature Class 0 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry type. ESRI String description of feature geometry type. Shape Geometry 0 0 0 CONUS_10KM The unique ID of this 10x10km grid cell Producer defined 1 133807 CONUS_10KM Integer 4 0 0 lat The geographic WGS84 decimal degree latitude of the grid cell centroid. Producer defined 22.972633252879454 51.49812330117566 lat Double 8 0 0 long The geographic WGS84 decimal degree longitude of the grid cell centroid. Producer defined -65.34694505251443 -127.86039406892418 long Double 8 0 0 GRTS_ID Generalized Random-Tessellation Stratified (GRTS) Survey Design draw. Producer defined 1 133807 GRTS_ID Integer 4 0 0 No_PS No_PS Integer 4 0 0 caliginosus caliginosus Single 4 0 0 crotchii crotchii Single 4 0 0 occidentalis occidentalis Single 4 0 0 morrisoni morrisoni Single 4 0 0 kirbiellus kirbiellus Single 4 0 0 sonorus sonorus Single 4 0 0 mean_speciesRichness Mean speciesRichness Double 8 0 0 Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. U.S. Geological Survey GS ScienceBase mailing address

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Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9O75YDV None 20200911 Colin Talbert U.S. Geological Survey, Southwest Region IT SPEC (DATAMGT) mailing address

2150 Centre Avenue Bldg C

Fort Collins CO 80526 United States 970-226-9425 970-226-9230 talbertc@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999 Esri ArcGIS 13.6.0.59527 CABBA_LTM_SR_AB The NABat sampling frame is a grid-based finite-area frame spanning Canada, the United States, and Mexico consisting of 10-km by 10-km (100-km2) grid cell sample units. This grain size is biologically appropriate given the scale of movement of most bat species, which routinely travel many kilometers each night between roosts and foraging areas and along foraging routes. A draw of sample units from a finite sampling frame using the GRTS design produces an ordered list of units such that any ordered subset of that list is also randomized and spatially balanced. This vector dataset is the individual grid-based sampling grid for Continental United States at a 10x10km resolution.The GRTS design provides solutions to several practical challenges faced by bat surveyors that are not provided by more familiar designs such as simple random, stratified, and systematic sampling. The GRTS design allows for sample site additions and deletions, supports unequal-probability selection of survey locations, and provides an approximately unbiased neighborhood-weighted variance estimator that takes advantage of the spatial structure present in the surveyed population.biotalocationecosystem monitoringUSGS:5b7753bde4b0f5d578820455United States CABBA_LTM_SR_AB 002 https://www.arcgis.com/sharing/rest/content/items/227bfc79c37642edafce8edb1ffb96e1/info/thumbnail/ago_downloaded.png Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) Albers <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.6.0'><WKT>PROJCS["Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["false_easting",0.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-96.0],PARAMETER["standard_parallel_1",29.5],PARAMETER["standard_parallel_2",45.5],PARAMETER["latitude_of_origin",23.0],UNIT["Meter",1.0]]</WKT><XOrigin>-16901100</XOrigin><YOrigin>-6972200</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision></ProjectedCoordinateSystem> 20260106 08021300 20260106 08021300 File Geodatabase Feature Class dataset 0 Simple FALSE 0 TRUE FALSE 20260106 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