The population of three species of protected snails has declined significantly over the past ten years NOW



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This is the snail of the narrow basket, flat disc and sedge snail. In particular, the snail population has decreased significantly by more than half.

The decrease is due to the fact that, in recent years, work has been carried out on the restoration of dunes for partially protected flora and fauna. This has been detrimental to the habitat of the hive snail. The area of ​​the hive snail in the Netherlands is virtually limited to a number of dune coastal areas.

The distribution of hearings decreased to 84% from 2007. This applies to the distribution area in natural and agricultural areas. The flat disc lives mainly in nutrient-rich, unshaded and stagnant waters in peat moorlands with a varied underwater plantation.

Ten years ago it was thought that snails lived only in limestone and marshy Limburg forests. It is precisely here that the species is deteriorating as a result of drought and habitat degradation.

However, the sedative crab snail appears to occur in many more places in the Netherlands and has probably remained there for a long time. This mainly concerns undisturbed riparian vegetation in the plains areas of the western and northern Netherlands

For the known mite, also protected species, no measurement program has been set up. in place for the moment. Because the presence of the snail is reported in more and more places of which this species was not previously known, according to Statistics Netherlands, it is plausible that the population of the snail will be found in the area. snail is larger than size

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