Natural History: The dome mound of F. dakotensis consists mostly of small-fragment, vegetable thatch or detritus. In prairie systems, some soil is mounded up and forms the basal foundation for the outer thatch layer. The small queen of this species points to possible temporary social parasitism. I have yet to collect this ant in Missouri, but a photograph of ants on a mound readily identifiable as this species, from a public prairie in northwestern Missouri, was sent to me by a state conservation agent.
Found most commonly in these habitats: 1 times found in grassy area, 1 times found in rocky alpine ridge, 1 times found in alpine vegetation, 1 times found in clearcut conifer hillside, 1 times found in open rocky summit
Collected most commonly using these methods or in the following microhabitats: 2 times search
Elevations: collected from 700 - 2680 meters, 2201 meters average