This analysis is based on amphibians, birds, mammals, fish and reptiles species checklists for India's Western Ghats landscape. The checklists were gathered and contributed by Dr. Srinivas Vaidyanathan, and are available in the data/ folder.
We queried the IUCN Red List database for threat status assessment histories for each species, using the {rredlist} package. See the script downloadAssessmentHistory.R for this. The resulting table from this querying is in results/ folder.
The calculations of changes in number of endangered species from 2010 to present are in the R notebook findChangeInAssessmentStatus.Rmd. Its knitted output is findChangeInAssessmentStatus.html for downloading and viewing in a browser.