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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.

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Name	Format	Description	Link
	21		https://data-usfs.hub.arcgis.com/documents/usfs::terrestrial-condition-assessment-tca-feral-pig-density-map-service
	3		https://usfs.maps.arcgis.com/home/item.html?id=fefbe7c40ec2474dafb2d2e1805d9d2b
	55		https://www.arcgis.com/sharing/rest/content/items/970da92574d342a48e991a53468e3dc9/info/metadata/metadata.xml?format=iso19139

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

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