Estimating Grauer's gorilla distribution and population size in eastern Democratic Republic of the Congo
Data can be found in the
rastersfolder includes a GeoTIFF raster stack file called
environ.tifwith all the environmental variables used for the species distribution model.
gorillasfolder includes three .csv data files:
gorillas-erate-dens.csv: data for the density/e-rate relationship
gorillas-erate.csv: data to compute local densities and the weighted mean density
gorillas.csv: presence-absence data for the species distribution model
The R script
gorillas.R can be run to reproduce the results of the following study:
Plumptre A. J., S. Nixon, D. Kujirakwinja, G. Vieilledent, R. Critchlow, E. A. Williamson, R. Nishuli, A. Kirkby and J. S. Hall. 2016. Catastrophic Decline of World's Largest Primate: 80% Loss of Grauer's Gorilla (Gorilla beringei graueri) Population Justifies Critically Endangered Status. PLoS One.
To run the script, you can either execute the
gorillas.sh shellscript file or run the R script under a R GUI such as RStudio.
All results are saved in the
report folders. The
report.Rmd file is used to embed R computations and text and report briefly the main results of the study in the file
Data and R script are available under the GNU General Public License version 3 (see