Enhancing the biodiversity of old-growth forests

Partner RNPs: Baronies provençales, Chartreuse, Massif des Bauges, Vercors, Verdon

INRAE departments and units: ACT-Lessem

The aim of the TRAMES project is to gain a better understanding of the biodiversity of pastoral areas and old-growth forests and to study them over the long term in order to observe their evolution and draw up a programme of measures for the restoration or maintenance of these ecosystems.

The five Regional Nature Parks (RNPs) of the Baronnies Provençales, Bauges, Chartreuse, Vercors and Verdon in the Pre-Alps have joined forces to describe these two biotopes and the uses to which they are put. These ecosystems are linked to fundamental and strategic activities in rural areas, such as pastoralism and forestry. The ‘trame‘ or corridor of mature forests – which scientists from INRAE’s Ecodiv department are helping to describe – enables essential genetic exchanges between populations of species (fauna and flora), their migration and their resilience in a context of adapting biodiversity to climate change. The scientists are supporting the project in a number of ways: they are helping the parks define maturity criteria for Mediterranean woodlands, identify indicator species among the fauna, and are testing a number of methods to model the trame, in particular using LiDAR remote sensing and photogrammetry.

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