Figure 4. a) All untreated mounds that shared were within 5m of the treated mound. Plot includes status of an isotope tracer in untreated mounds by distance in meters to the treated mound.b) All untreated mounds that shared showed very low pairwiseF ST values with the treated mound. Plot includes status of an isotope tracer in untreated mounds by pairwiseF ST values compared to the treated mound. Results shown are from all six sites. Point and error bars represent mean ± SE. Mounds with \(\delta\)15N values greater than 20‰ indicated that untreated mounds exchanged workers and/or resources with the treated mound (“Shared with treated mound”), and the values of all other mounds indicated that untreated mounds did not exchange workers or resources with the treated mound (“Did not share with treated mound”).