Fascinating read.
http://www.nature.co...icles/srep29828
Edit: nature.com seems to be down, article here: https://www.ncbi.nlm...les/PMC4964563/
What this means as ant keepers, for species that are known to by polygyne within certain areas, the evolutionary pressure is that cofounding increases success of the founding stage, and successful founding + double or more reproduction capacity allows them to outcompete other ants
So the ants of a specific species that isn't always polygyne, that are likely to be polygyne, will live in areas with very high density of the same species.
Edited by soulsynapse, February 22 2017 - 10:12 AM.