Jake F. Weltzin United States Geological Survey USA National Phenology Network Integrating phenology data across spatial and temporal scales.
USA National Phenology Network’s Nature's Notebook A tool for educational programs: Teaching science literacy and climate change LoriAnne Barnett USA National.
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Jake F. Weltzin, Kathryn Thomas, Brian Haggerty, Theresa Crimmins, Ellen Denny, Abe Miller-Rushing, Alyssa Rosemartin The USA National Phenology.
