🦍 🇨🇩 Estimating Grauer's gorilla distribution and population size in eastern Democratic Republic of the Congo
Data can be found in the data
folder:
- The
rasters
folder includes a GeoTIFF raster stack file calledenviron.tif
with all the environmental variables used for the species distribution model. - The
gorillas
folder includes three .csv data files:gorillas-erate-dens.csv
: data for the density/e-rate relationshipgorillas-erate.csv
: data to compute local densities and the weighted mean densitygorillas.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. 11(10): e0162697. [doi:10.1371/journal.pone.0162697].
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 results
and 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 report/report.pdf
.
Data and R script are available under the GNU General Public License version 3 (see LICENSE
file).