Open Access
Table 2
Species of dragonfly larvae collected. N − number of specimens, D − dominance [%], F − frequency [%].
| Species | Total | Before dredging | After dredging | Fish ponds | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | D | F | N | D | F | N | D | F | N | D | F | |
| Calopteryx splendens (Harris) | 14 | 8.5 | 0.4 | 9 | 27.3 | 0.6 | 5 | 12.5 | 0.4 | – | – | – |
| C. virgo (Linnaeus) | 14 | 8.5 | 0.4 | 3 | 9.1 | 0.2 | 11 | 27.5 | 0.4 | – | – | – |
| Lestes sponsa (Hansemann) | 2 | 1.2 | 0.1 | – | – | – | – | – | – | 2 | 2.2 | 0.3 |
| Sympecma paedisca (Brauer) | 5 | 3.0 | 0.2 | – | – | – | – | – | – | 5 | 5.4 | 0.7 |
| Platycnemis pennipes (Pallas) | 7 | 4.2 | 0.2 | 3 | 9.1 | 0.2 | 4 | 10 | 0.3 | – | – | – |
| Ischnura elegans (Vander Linden) | 19 | 11.5 | 0.4 | 11 | 33.3 | 0.6 | 8 | 20 | 0.4 | – | – | – |
| Erythromma najas (Hansemann) | 2 | 1.2 | 0.1 | 1 | 3.0 | 0.1 | 1 | 2.5 | 0.1 | – | – | – |
| Aeshna cyanea (O.F. Müller) | 1 | 0.6 | 0.1 | – | – | – | 1 | 2.5 | 0.1 | – | – | – |
| A. mixta (Latreille) | 5 | 3.0 | 0.2 | – | – | – | 2 | 5 | 0.1 | 3 | 3.3 | 0.7 |
| Gomphus vulgatissimus (Linnaeus) | 10 | 6.1 | 0.2 | 4 | 12.1 | 0.3 | 6 | 15 | 0.3 | – | – | – |
| Somatochlora metallica (Vander Linden) | 1 | 0.6 | 0.1 | – | – | – | 1 | 2.5 | 0.1 | – | – | – |
| Sympetrum depressiusculum (Selys) | 78 | 47.3 | 0.1 | – | – | – | – | – | – | 78 | 84.8 | 0.3 |
| S. sanguineum (O.F. Müller) | 1 | 0.6 | 0.1 | – | – | – | – | – | – | 1 | 1.1 | 0.3 |
| S. vulgatum (Linnaeus) | 6 | 3.6 | 0.2 | 2 | 6.1 | 0.2 | 1 | 2.5 | 0.1 | 3 | 3.3 | 0.3 |
| Total | 165 | 33 | 40 | 92 | ||||||||
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