Western Arctic caribou herd winter lichen, snow depth, and mortality

This repository contains data and code to generate results and figures from 'Winter survival shaped by forage abundance and snow depth for a long-distance migratory ungulate.' The dataset includes winter lichen cover, snow depth, and mortality data for adult female caribou from the Western Arctic Herd in northwestern Alaska. Each row represents unique locations from 372 caribou collected between 2009 and 2024, including information on snow depth, lichen cover, and mortality. Environmental data were derived from GPS collar locations; however, the locations themselves have been excluded due to restrictions on sharing data from harvested wildlife in Alaska.