Table 1. Abiotic factors measured inside 25 Paraponera clavata nests and within adjacent soil (mean ± SE). Paired t-tests compared nest and adjacent soil means, asterisks indicate significant differences.
| Abiotic factor | Nest | Soil | df | t | P |
| Temperature (°C) | 26 ± 1 | 26 ± 1 | 24 | 1.000 | 0.327 |
| Moisture (%) | 27 ± 2 | 37 ± 3 | 24 | 3.564 | 0.002* |
| pH | 6.1 ± 0.1 | 5.9 ± 0.1 | 24 | 3.110 | 0.005* |