TY - RPRT TI - Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future AU - John P. Severson AU - Heather E. Johnson AU - Stephen M. Arthur AU - William Leacock AU - Michael J. Suitor PY - 2021 DO - 10.1111/gcb.15682 UR - https://pubs.usgs.gov/publication/70223143 ID - 70223143 ER -