Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Terrestrial Condition Assessment (TCA) Feral Pig Density (Map Service)

Metadata Updated: June 21, 2023

Data are derived from generalized linear models and model selection techniques using 129 estimates of population density of wild pigs (Sus scrofa) from 5 continents. Models were used to determine the strength of association among a diverse set of biotic and abiotic factors associated with wild pig population dynamics. The models and associated factors were used to predict the potential population density of wild pigs at the 1 km resolution. Predictions were then compared with available population estimates for wild pigs on their native range in North America indicating the predicted densities are within observed values. See Lewis et al (2017) and Lewis et al (2019) for more information.Lewis, Jesse S., Matthew L. Farnsworth, Chris L. Burdett, David M. Theobald, Miranda Gray, and Ryan S. Miller. 'Biotic and abiotic factors predicting the global distribution and population density of an invasive large mammal.' Scientific reports7 (2017): 44152.Lewis, Jesse S., Joseph L. Corn, John J. Mayer, Thomas R. Jordan, Matthew L. Farnsworth, Christopher L. Burdett, Kurt C. VerCauteren, Steven J. Sweeney, and Ryan S. Miller. 'Historical, current, and potential population size estimates of invasive wild pigs (Sus scrofa) in the United States.' Biological Invasions21, no. 7 (2019): 2373-2384.

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons Attribution

Downloads & Resources


Metadata Created Date November 3, 2022
Metadata Updated Date June 21, 2023

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date November 3, 2022
Metadata Updated Date June 21, 2023
Publisher U.S. Forest Service
Data First Published 2021-01-21
Data Last Modified 2022-08-29
Category geospatial
Public Access Level public
Bureau Code 005:96
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id 72ee641a-836c-4400-998a-23c70d123b4c
Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title USDA JSON
Homepage URL
Metadata Type geospatial
Old Spatial -131.3620,6.8980,-65.6380,72.6220
Program Code 005:059
Source Datajson Identifier True
Source Hash a50ef95a279b916b388343e10f38f9eff7b9b19b
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -131.3620, 6.8980, -131.3620, 72.6220, -65.6380, 72.6220, -65.6380, 6.8980, -131.3620, 6.8980}

Didn't find what you're looking for? Suggest a dataset here.