Vegetation changes with climate change in the Grandes Rousses mountain range

# Vegetation changes with climate change in the Grandes Rousses mountain range **Principal investigator (or person responsible for collecting the data):** Richard Michalet, University of Bordeaux, France, [[e-mail]](mailto:[e-mail]) **Date of data collection:** 1997, 2017, 2018 **Information about geographic location of data collection:** Isère department, France. **The file, created in 2024, includes 2 sheets :** 1. Vegetation composition : Vegetation plots data (Fig. 2 & 3). 2. Plant traits : CWM of plant traits (Fig. 4 & 5). **There are no restrictions on the data.** **Description of methods for data collection or generation**: Vegetation composition was sampled using quadrat sampling (Michalet et al. 2002, Arctic, Antarctic & Alpine Research). Plant traits measurements and CWM calculation are done following Michalet et al. (2023, Ecology). **Description of methods used for data processing:** We used CA for vegetation composition and PCA for plant traits, both followed by ANOVAs. **Variable list, units of measurement**: **Sheet 1 (vegetation composition):** N° (information): plot number. Year (effect variable): year of sampling. All other columns (species names): Species counts. **Sheet 2 (plant traits):** Species (information): species names. Height: extended height (cm). Width: lateral extension (cm). LDMC: Leaf Dry Mass content (percentage). SLA: Specific Leaf Area (cm2.g-1). LA: Leaf Area (cm2). **Definitions for codes or symbols used to record missing data:** n/a.