Priority sampling locations in the eastern U.S. for the Integrated Monarch Monitoring Program
Description
The sampling locations provided here were selected as a two-stage Generalized Random Tessellation Stratified (GRTS) sample (Stevens & Olsen 2004). The first stage of the GRTS draw used a master sample developed by the North American Bat Monitoring Program (Loeb et al. 2015) from a 10 x 10 km grid placed over the conterminous U.S., Canada, and Mexico. Each 10 x 10 km grid cell (hereafter, master cell) was assigned a GRTS rank by NABat. The rank represents the priority order in which master cells should ideally be sampled. For the second stage of the draw, sampling points within a master cell were selected. Each point was defined as a 30 x 30 m cell of the GIS raster that defined monarch-relevant habitat. Sampling points within each master cell were assigned to 5 land-use sectors of interest. For the western U.S., 3 categories of estimated milkweed habitat suitability were used instead of land-use sectors.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.5b61f872e4b006a11f6f787f.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9EMA1YI |
Tags
- sampling-design
- canada
- biota
- mexico
- monarch-butterfly
- united-states
- long-term-monitoring
- status-and-trends
- usgs-5b61f872e4b006a11f6f787f