Within-colony relatedness of fire ants in the literature
We also compiled all published coefficients of within-colony relatedness between workers in the red imported fire ant to compare our results with those in the literature. We searched the Web of Science using the following search terms: β€œSolenopsis invicta ” OR β€œred imported fire ant” AND population AND microsatellite . Our search generated 87 records, but a large number of these studies focused on a different ant or social insect species. We excluded any study that contained only queen-queen relatedness coefficients, as well as, any study of a different species of ant or social insect. We reviewed each record and extracted within-colony relatedness coefficients between workers (means and standard error whenever available) and recorded the sampling location. In total, we extracted information from eight studies.