TY - RPRT TI - Climate change is advancing spring onset across the U.S. national park system AU - William B. Monahan AU - Alyssa Rosemartin AU - Katharine L. Gerst AU - Nicholas A. Fisichelli AU - Toby R. Ault AU - Mark D. Schwartz AU - John E. Gross AU - Jake F. Weltzin PY - 2016 DO - 10.1002/ecs2.1465 UR - https://pubs.usgs.gov/publication/70176844 ID - 70176844 ER -