Data for the manuscript "Unveiling the ghosts of landscapes past: changes in landscape connectivity over the last decades are still shaping current woodland plant assemblages"

SA_Matrix.txt: matrix of species abundance (i.e. percent cover per species) for the six or eight quadrats performed in the 50 woodlands. STAw_Matrix.txt: matrix of the total abundance of each species (i.e. sum of the percent cover recorded in the six or eight quadrats per species) weighted by the number of quadrats for the 50 woodlands. AFH_matrix.txt = matrix of the species affinity to forest habitats (France, Atlantic region) with the following typology: "1" = specialist forest species (species that occur only in forests), "2" = generalist forest species (species that occur both in and outside forests) and "O" = species of open habitats. TD_Matrix.txt: taxonomic diversity [total species richness (richness) and Piélou's evenness (evenness)] matrix for the 50 woodlands. TD_GSFS_Matrix.txt: taxonomic diversity [total species richness (richness) and Piélou's evenness (evenness)] of specialist and generalist forest species for the 50 woodlands. CT_matrix.txt: species trait values matrix for each continuous trait considered [number of seeds per plant (NSPP), seed dry mass (SDM), and seed germination rate (SGR)]. T_matrix.txt: species trait values matrix for each trait considered [number of seeds per plant (NSPP), seed dry mass (SDM), seed germination rate (SGR) and type of reproduction (ToR)] following a MICE procedure to estimate missing continuous trait values. FS_Matrix.txt: functional structure [community-weighted mean (CWM) and Rao’s quadratic entropy (RaoQ)] matrix for each trait considered [number of seeds per plant (NSPP) seed dry mass (SDM), plant vegetative height (PHV), seed germination rate (SGR) and type of reproduction (ToR)] in the 50 woodlands. Connectivity_matrix.txt: matrix of the connectivity [Potential Dispersal Flux (PCflux)] for each time step (1952, 1974, 1985, 2000, 2006 and 2016)] for the 50 woodlands. Temporal_dynamics_connectivity_matrix.txt: matrix of the temporal dynamics of connectivity [the degree of connectivity (“potential Dispersal Flux” index obtained for 1952, PCflux_1952), the magnitude (the absolute value of the slope of OLS regression model, Abs_slope) and the variability (the residual standard error of OLS regression model RSE)] for the 50 woodlands and their associated trends (estimated from the value of the slope of OLS regression model, Slope). Data_REG.txt: data* to perform regression models (that systematically include the degree of connectivity or not) using model-averaging methodology *Coordinates (X and Y) of the centroids of the 50 woodlands, and merging of Temporal_dynamics_connectivity_matrix.txt, TD_Matrix.txt and FS_Matrix.txt. Script_TD.R: script to obtain the matrix of the total species richness (richness) and Piélou's evenness (evenness) for the 50 woodlands (TD_Matrix.txt) Script_TD_GSFS.R: script to obtain the matrix of the total species richness (richness) and Piélou’s evenness (evenness) of specialist and generalist forest species for the 50 woodlands. Script_CT.R: script to obtain species trait values matrix for each continuous trait considered [number of seeds per plant (NSPP), seed dry mass (SDM), plant vegetative height (PHV) and seed germination rates (SGR)] (CT_matrix.txt). Please, note that the data obtained following our request to the TRY global plant trait database cannot be made publicly available. Script_FS.R: script to obtain functional structure [community-weighted mean (CWM) and Rao’s quadratic entropy (RaoQ)] matrix for the 50 woodlands (FS_Matrix.txt) Script_REG.R: script to perform regression models using model-averaging methodology. Script_REG_DoC_included.R: script to perform regression models that systematically include the degree of connectivity using model-averaging methodology.