Mechanisms of seed mass variation along resource gradients

All data and analyses of the manuscript are available here.
please download all files to the same working directory for running the R script. Below a brief description of each file
1. 'seed_mass_experiment_main_script.R' - this R script includes all the analyses presented in the paper. 2. 'slope_abundance.csv' - this dataset describes community abundance in southern slope along soil depth gradient in Beit Guvrin (described in Kadmon & Ron 2018) the data was collected in four soil depth categories 3. 'slope_seed_mass.csv' - this dataset include seed mass data (in mg) for all species in 'slope_abundance.csv'(mass of zero means no available data)4. 'valley_abundance.csv' - this dataset describes community abundance in northern slope and valley in Beit Guvrin (described in DeMalach et al. 2017) the data was collected in two habitats (northern slope and valley) and include also fertilization and removal manipulation (these manipulations were not analyzed in this manuscript)5. 'valley_seed_mass.csv' - this dataset includes seed mass data(in mg) for all species in 'valley_abundance.csv' (mass of zero means no available data)6. 'mesocosm_abundance.csv' - this dataset describes community abundance in mescosom experiment in Jerusalem (described in Kadmon & Ron 2018) the data was collected for four years in four soil depth categories7. 'mesocosm_seed_mass.csv' - this dataset include seed mass data (in mg) for all species in 'mesocosm_abundance.csv' (mass of zero means no available data)8. 'clipping_abundance.csv' - this dataset describes community abundance in clipping experiment in Beit Guvrin (described in Segre et al. 2016) The dataset include only the third year of the experiment9. 'clipping_seed_mass.csv' - this dataset include seed mass data (in mg) for all species in 'clipping_abundance.csv' (mass of zero means no available data)10.'greenhouse.csv' - this dataset include data on biomass (in mg) of the species in the greenhouse experiment. This include seed mass, shoot biomass after45 days and root and shoot biomass at the end of the experiment.

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