Table 1.
Growth characteristics of the investigated Utricularia populations
| Water body | Dry weight (mg) | Total length (cm) | No. of buds | Leaf density (dm−1) | Trap density (dm−1) | Traps per leaf | N content (%) | C/N ratio (Utricularia) | C/N ratio (control plant) |
|---|---|---|---|---|---|---|---|---|---|
| Seetaler Lake (U. vulgaris) | 216 ± 89 | 50·2 ± 15·0 | 2·9 ± 1·5 | 11·7 ± 1·9 | 439·0 ± 99·3 | 37·9 ± 7·7 | 2·4 ± 0·5 | 17·9 ± 3·8 | 19·9 |
| Seetaler Lake (U. minor) | 21 ± 20 | 40,7 ± 15·9 | 2·8 ± 1·7 | 11·5 ± 1·6 | 138·6 ± 51·3 | 12·8 ± 6·2 | 2·4 ± 0·2 | 16·3 ± 1·2 | |
| Seetaler Lagg (U. minor) | 10 ± 5 | 35·9 ± 12·7 | 6·1 ± 3·0 | 22·0 ± 3·4 | 52·8 ± 21·3 | 2·5 ± 1·0 | 2·1 ± 0·4 | 19·6 ± 5·3 | 18·2 |
| Peat Bog Schrems (U. australis) | 72 ± 43 | 72 ± 42 | 8·3 ± 6·1 | 19·9 ± 3·4 | 163·6 ± 80·2 | 8·9 ± 5·5 | 2·7 ± 0·8 | 16·4 ± 3·8 | 14·3 |
| Winkelauer Pond (U. australis) | 2 ± 2 | 8·2 ± 3·2 | 1·3 ± 0·7 | 28·3 ± 7·7 | 63·3 ± 24·4 | 2·4 ± 1·1 | 5·2 ± 0·7 | 8·2 ± 0·9 | 24·8 |
| Peat Bog Hochstand (U. australis) | 59 ± 60 | 42·5 ± 23·7 | 3·2 ± 1·3 | 15·4 ± 2·7 | 367·6 ± 180·0 | 25·6 ± 15·6 | 2·0 ± 0·3 | 20·5 ± 2·9 | 25·3 |
| Peat Bog Brand (U. australis) | 38 ± 25 | 46·6 ± 28·4 | 4·0 ± 1·7 | 12·6 ± 2·5 | 202·6 ± 54·4 | 17·1 ± 4·4 | 4·2 ± 0·4 | 9·4 ± 0·7 | 21·0 |
| Postteich (U. australis) | 35 ± 25 | 49·4 ± 24·7 | 5·7 ± 3·7 | 23·0 ± 3·7 | 156·4 ± 51·1 | 7·2 ± 3·1 | 1·1 ± 0·1 | 32·6 ± 3·4 | 35·3 |
n = 8–12; data are shown as arithmetic mean ± s.d.