Open Access

Table 2

Number of snails per square metre of habitat in 15 ditches colonised by a community with Anisus spirorbis and Galba truncatula, or a control population in mid-April 2023 and 2024.

Year and type of malacological stand Mean value (SD)

  Anisus spirorbis Galba truncatula
April 2023:    
Communities 9.3 (5.7) 4.7 (1.9)
Control populations 31.5 (11.6) 5.2 (1.1)
April 2024:    
Communities 11.8 (4.3) 4.5 (1.2)
Control populations 28.7 (8.3) 5.4 (0.9)

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