Fig 1.

Methane uptake in incubations under conditions with high methane concentrations (12% [vol/vol]) in termite mounds 1 (A) and 2 (B). Sample positions through the vertical profiles are indicated by height (cm) above the ground (see the height for each sampling site in Table 1). The inset shows data for the first 5 days, demonstrating an earlier onset of methane uptake in the active nest material. Incubations for each profile were performed in triplicate, and the results are means ± standard deviations.