When minority language persistence is not enough: the decline of foraging knowledge in German- and Ladin-speaking Alpine communities of Northern Italy.

Local ecological knowledge is an essential element of the Alpine biocultural diversity and is often linked to minority languages. However, its continuity does not necessarily correspond to the persistence of these languages. This study investigates how knowledge of wild plants (and mushrooms) is transmitted and transformed among three minority-language communities in the Italian Alps: Cimbrian, Mòcheno, and Ladin speakers. Ethnobotanical data were collected through structured interviews between 2022 and 2025 and compared with historical records from the 1980s documenting the use of wild plants for food, medicinal purposes, and herbal teas. The results reveal a marked decline in traditional plant-related practices despite the continued use and institutional support of minority languages. Plants once central to household herbal repertoires, such as Achillea millefolium L., Artemisia absinthium L., and Sambucus nigra L. which are now marginal or abandoned. However, a limited set of herbal teas remains culturally significant. Conversely, mushroom foraging and the gathering of wild fruits remain comparatively resilient, supported mainly by communal land-use institutions (usi civici) that foster ecological engagement and intergenerational learning. Overall, the study highlights a paradox of biocultural resilience: linguistic vitality alone does not safeguard embodied ecological knowledge. Sustaining Alpine cultural and environmental heritage, therefore, requires integrated approaches that address language, environment, governance, and socio-economic change together.