Termites are considered to be ecosystem engineers. Fungus-growing termites could play an important role in soil nutrient availability and dynamics in humid and subhumid tropical ecosystems, by building numerous mounds with differing properties compared to adjacent soils. However, far less is known about the nutrient variability within the mounds and the nutrient stocks in whole mounds.
source https://phys.org/news/2020-12-abandoned-termite-mounds-islands-fertility.html