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Etablissement public national du Mont Saint-Michel

Etablissement public national du Mont Saint-Michel

Monitoring threatened amphibians around Mont-Saint-Michel

With 200 €,
Etablissement public national du Mont Saint-Michel finances:
1 counting session(s) at one of the three sites around Mont-Saint-Michel


In Mont-Saint-Michel Bay, several amphibian species are particularly vulnerable, such as the Spotted Pelodyte.

Hinterlittoral wetlands provide habitats  for these species, in an unfavorable anthropized context. Since 2005, a number of environmental restoration projects have been carried out at various sites in the bay, with a particular focus on amphibian conservation.

With climate change, the functionality of wetlands, particularly the temporary environments favored by the Spotted Pelodyte, is being altered, adding to the pressure on the amphibian community.


This project to continue standardized monitoring of the Spotted Pelodyte and other amphibian species, all of which are protected and threatened to varying degrees, will make it possible to document population trends and implement appropriate measures to ensure their long-term survival (restoration of pools, improved hydraulic functioning...). By improving wetland functionality, these measures could benefit the entire freshwater ecosystem, which includes numerous heritage species: flora, birds, invertebrates... In addition, the results of the monitoring will help raise awareness of this threatened biodiversity among visitors to Mont-Saint-Michel.
Etablissement public national du Mont Saint-Michel primary
Etablissement public national du Mont Saint-Michel secondary

Recent result

The project has already enabled us to acquire over 10 years' worth of data on the species and to implement certain protection measures. The batrachological population has increased from one breeding species at a single site to 8 species at three sites, with numbers on the rise.

The money will be used for

The money raised will be used to cover expenses related to monitoring amphibians at the three sites, assessing their diversity, abundance, and reproductive success by species, as well as drawing up recommendations for improving habitats, to guarantee the sustainability of populations.


The Etablissement public du Mont Saint-Michel project aims to monitor 3 sites totalling 130 hectares in 2023 using a standardized protocol, i.e. through 9 day and night field sessions.
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