I'm aware of the fact that Prenolepis Imparis is a cold loving species, and tends to estivate in the deepest chambers of their nest during the warmer months, presumably because those chambers are cooler than the soil above. I'm also aware that, reportedly, no one has gotten a colony past year 2. I'm thinking there's probably a correlation, so I'm wondering if there's any information on estivating ants. There's tons of info on hibernating ants, but since P. Imparis is one of the few ants that actually remain dormant during the warmer months, I can't seem to find a lot of info on that. I have done some reasearch and some measuring. Apparently, P. Imparis chambers are never found above 60 cm in the soil, and nests can reach over 3 meters down. I know soil temperature has plenty to do with this, but if there's any other information on this subject, i'm open to suggestions.
I got most of the measurements and such here: https://antwiki.org/...nolepis_imparis
