Table 1.
Mean number of individuals (Ind.) m−2 collected within 4 weeks (N = 14, 14 months of sampling) from funnels filled with formaldehyde (±SD), the mean percentage of the aeroplankton (N = 14), and the maximal dispersal rate (Ind. m−2 in 4 weeks) from the ground and roof treatments.
| Ground | Roof | ||
|---|---|---|---|
| Individuals found | N = 617 | N = 136 | |
| Nematodes | Mean no. Ind. | 726.8 (933.1) | 124.9 (129.3) |
| Mean percentage | 44.7 | 46.3 | |
| Max dispersal rate (Ind. m2 in 4 weeks) | 3021 | 445 | |
| Rotifers | Mean no. Ind. | 34.1 (47.3) | 18.2 (32.2) |
| Mean percentage | 8.0 | 2.0 | |
| Max dispersal rate (Ind. m2 in 4 weeks) | 95 | 64 | |
| Tardigrades | Mean no. Ind. | 38.6 (48.6) | 2.3 (8.5) |
| Mean percentage | 0.3 | 3.9 | |
| Max dispersal rate (Ind. m2 in 4 weeks) | 64 | 32 | |
| Mites | Mean no. Ind. | 84.0 (100.3) | 186.3 (215.6) |
| Mean percentage | 14.3 | 17.8 | |
| Max dispersal rate (Ind. m2 in 4 weeks) | 191 | 127 | |
| Collembolans | Mean no. Ind. | 159.0 (300.6) | 6.8 (18.4) |
| Mean percentage | 1.4 | 11.2 | |
| Max. dispersal rate (Ind. m2 in 4 weeks) | 382 | 64 | |
| Thrips | Mean no. Ind. | 274.8 (933.1) | 184.0 (337.7) |
| Mean percentage | 31.3 | 18.7 | |
| Max. dispersal rate (Ind. m2 in 4 weeks) | 636 | 350 |