Table 2.
The percentages of size classes and sex distribution of nematodes collected from funnels filled with formaldehyde or water and placed within a natural environment or on the roof of Bielefeld University.
| Ground | Roof | ||||
|---|---|---|---|---|---|
| Formaldehyde | Water | Formaldehyde | Water | Control | |
| Nematodes found | 318 | 271 | 57 | 28 | 113 |
| Nenatodes identified | 303 | 219 | 45 | 27 | 108 |
| Number of species | 17 | 17 | 13 | 7 | 6 |
| Size classes (%) | |||||
| <0,25 mm | 7.2 | 2.6 | 10.5 | 3.6 | — |
| 0.25–0.5 mm | 28.3 | 34.3 | 47.4 | 10.7 | — |
| 0.5–0.75 mm | 27.7 | 21.0 | 29.8 | 50.0 | — |
| 0.75–1 mm | 33.3 | 38.0 | 10.5 | 17.9 | — |
| >1 mm | 3.5 | 4.1 | 1.8 | 17.9 | — |
| Sex distribution (%) | |||||
| juveniles | 56.1 | 61.2 | 73.8 | 70.4 | 80.6 |
| adults | 43.9 | 38.8 | 26.2 | 29.6 | 19.4 |
| adult males | 2.6 | 1.4 | 6.6 | 0.0 | 0.0 |
| adult females | 41.3 | 37.4 | 19.7 | 29.6 | 19.4 |
| gravid females | 2.3 | 4.6 | 0.0 | 3.7 | 0.9 |
Data from the control, nematodes collected from stones, organic material, or plants on the roof, are also provided. Nematode numbers in the different replicates and from the different sampling dates were summed for each treatment before further calculation. The percentage of size classes is based on the number of collected nematodes, and the sex distribution on the number of identified nematodes.