Towards a global understanding of tree mortality

Data and code for the paper "Towards a global understanding of tree mortality" currently under review with New Phtologist. The repository contains two files:

(1) itmn_survey_cleaned.csv

A cleaned version of the survey results. Cleaning included (i) correction of country names, (ii) removal of non-integer values (e.g. <5 instead of 5), (iii) removal of duplicated entires (i.e. one plot network entered by two people), and (iv) renaming of column names. The final dataset includes following columns:

timestamp = entry date of the plot network
firstname,surname = name of person entering the plot network
country = country code of the plot network
country_name = country name of the plot network
year_start = start year of the plot network
plot_n = number of plots
plot_size_min = minimum plot size (ha)
plot_size_max = maximum plot size (ha)
interval = remeasurement interval (years)
tracked = if and how trees are tracked across remeasurements 
treestatus = if and how often tree status is assessed
diameter = if and how often tree diameter is assessed
defoliation = if and how often tree defolition is assessed
mortalitycause = if and how often cause of mortality is assessed
harvest = if and how often harvest is assessed

(2) survey_stats_figures.R

R-scrpt to reproduce all statistics and figures included in the paper.