Observed plant species emergence dates on grazed and exclosed plots at the Kangerlussuaq, Greenland study site 2009 through 2017

This data set consists of annual observed first dates of emergence and leaf opening by plant species occurring at a study site near Kangerlussauq, Greenland on plots that were exclosed from herbivory by caribou and muskoxen and on plots that were exposed to herbivory by caribou and muskoxen. This is part of an ongoing effort to monitor the timing of plant emergence and species-level variation in emergence timing in relation to observed variation in herbivory, climate, and weather. Observations were recorded on a daily or near-daily basis on multiple, randomly distributed, permanently marked plots. The mean first date of emergence or leaf opening for each species observed on each plot was recorded as the day of year.