Decline in the number and size of populations of two Lymnaeidae living in central France over the last decade

Open Access

Fig. 3

Area of habitats colonized by the two Lymnaeidae in 2013–2014 and 2020–2021 in 56 farms investigated on acid soils: Galba truncatula (3a) and Omphiscola glabra (3b). Hill., hillside; tramp., trampled.

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