Data from: Incorporating sampling bias into ENM/SDM permutation tests: New methods and a case study on neotropical ants
Data files
Jun 09, 2026 version files 4.18 MB
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bias_models.zip
3.66 MB
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README.md
1.45 KB
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real_spp_pair_maps.pdf
493.92 KB
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real_spp_pt_data.zip
24.96 KB
Abstract
These data include models of spatial sampling bias for South American ants, occurrence data for individual species, and maps of species occurrences and polygon range estimates.
The models of spatial sampling bias include one based on kernel density from occurrences of all South American ants from the Global Ant Biodiversity Informatics (GABI) database as well as one built from GABI ant records using variables thought to predict relative sampling effort (e.g., roads, distance to cities).
The point data is also from GABI. It is saved as one species per csv file, with each csv file named for the species it represents. Coordinates are given in decimal degrees using WGS84.
The "real_species_pair_maps.pdf" file contains pairs of closely related species that were used for the background/similarity analysis portion of the study, with polygonal ranges drawn around each species' occurrence points to estimate range overlap.
Dataset DOI: 10.5061/dryad.5dv41nsmp
Description of the data and file structure
This data set contains data for real species of ants from South America, as well as estimates of spatial sampling bias.
Files and variables
File: bias_models.zip
Description: Raster files containing estimates of relative sampling effort for ants. Both are derived from GABI occurrence records. One estimate is based on kernel density from all ant points worldwide, while the other is restricted to South America and is based on a statistical model estimating relative sampling strength as a function of distance to and density of roads, distance to water, human modification of natural systems, and human population density.
File: real_spp_pair_maps.pdf
Description: Maps of the distributions of ant species pairs used in the real data analyses. Occurrence data are from GABI, with minimum convex polygons used to estimate each species' range for calculations of range overlap.
File: real_spp_pt_data.zip
Description: Point data for the real ant species used in this study. Data are from GABI, with one species per .csv file. Coordinates are given in decimal degrees using WGS84.
Access information
Data was derived from the following sources:
- GABI