Since the creation of the Lauvitel integral reserve in the heart of the National Park, staff and scientists have been taking annual inventories of the flora and fauna and studying the natural environments that evolve without human intervention. A general inventory of biodiversity (2019-2021) has improved knowledge of species that are little-known but essential to the functioning of ecosystems. 648 new species, including 485 insects and 110 fungi, have been observed. It is estimated that, depending on the group, between 10% and 80% of the species present in the valley remain to be discovered, as changes are observed over time. See the booklet Réserve intégrale du Lauvitel.

As part of the National Park’s charter, the communes in the accession area can also host an inventory of their natural habitats and biodiversity. 61 naturalist and scientific contributors explored Crots (05) over 3 days in 2022. See the booklet “Écrins de nature”, in search of the Écrins’ smallest inhabitants.