In the north, colony populations of R. flavipes can reach up to 1-10 million. In addition, these termites may forage on territories up to several thousand square meters (Myles, 1998) Of the termites, only R. flavipes and its cousin, R. tibialis, build "shelter tubes" over foundations or through cracks in timber. They build these with soil particles, saliva, and feces. These tubes require constant moisture and soil contact to sustain the colony (Myles, 1998). The subterranean termites, themselves, must have contact with the soil in order to survive (Krishna, 1989). They may also live in giant termite mounds made of mud and ground mass. It is possible for termites to adjust the level of their nest to optimum moisture and stability levels.
Terrestrial Biomes: savanna or grassland ; forest