Open Access
Table 2.
Number of snail habitats colonized by Galba truncatula and Omphiscola glabra on the 162 farms before 1993 and in 2013–2016 in relation to their type.
| Type of snail habitat | Number of snail habitats (decline rate in %) |
|||
|---|---|---|---|---|
|
Galba truncatula
|
Omphiscola glabra
|
|||
| Before 1993 | From 2013 to 2016 | Before 1993 | From 2013 to 2016 | |
| Drainage furrows | 2032 | 1598 (21.3) | 707 | 655 (7.3) |
| Road ditches | 407 | 147 (63.8) | 169 | 77 (54.4) |
| Spring heads | 294 | 102 (65.3) | 117 | 34 (70.9) |
| Drainage ditches | 102 | 43 (57.9) | 56 | 47 (16.0) |
| Streams | 92 | 47 (48.9) | 41 | 28 (31.7) |
| Pools and ponds | 71 | 41 (42.2) | 32 | 23 (28.1) |
| Trampled areas | 17 | 11 (35.2) | 9 | 2 (77.7) |
| All types | 3015 | 1987 (34.0) | 1131 | 866 (23.4) |
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