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Table 1. Study sites where thermal infrared images of Solenopsis spp. ant mounds were obtained.
Site ID Approximate coordinates Land use Dominant vegetation Soils associations Ant species
Nobile 90° 32’ 47” W 33° 28’ 14” N Row crop (soy beans) Very sparse weeds Alligator S. invicta
Clay 88° 35’ 30” W 33° 40’ 17” N Grazed pasture (cattle) Bermudagrass, fescue Griffith, Leeper, Catalpa S. invicta S. invicta x
Levee 91° 05’ 25” W 33° 21’ 31” N Leased for grazing (cattle) Bermudagrass Leveea S. invicta

aLevee soils are anthropomorphic and include material from borrow pits. In this case, the soil was a light-colored silty clay loam. The soils associations at the Nobile and Clay sites are relatively high in clay content.
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