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Publications Using USA-NPN Data


The USA-NPN has contributed to the development of over 100 peer-reviewed publications. Collectively the models, observational data, and gridded data have served to advance the science of phenology by increasing understanding of phenological patterns and climatic drivers of plants and animals at local to continental scales.

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Data Dashboard


Up-to-the-minute summary metrics of the data found in our National Phenology Database for the current year and past years.

 

Metric 2014 2015 2016 2017 2018 2019 2020 2021 2022 total
Registered Observers 3,948 4,433 4,482 5,713 5,256 6,715 5,594 5,252 5,638 61,628
Active Observers 1958 2740 3032 3640 3585 3579 3519 3660 3783 27722
Days Observed/Observer 13.22 12.38 16.23 14.71 16.24 14.28 10.09 10.92 10.77 17.41
Registered Sites 2,785 2,606 2,573 3,392 3,744 3,465 4,657 4,113 3,819 45,669
Active Sites 1,879 1,921 1,876 2,339 2,855 2,456 3,241 3,081 2,745 20,224
Observations 223633 266271 379992 455641 475449 489000 351830 487408 369250 4378296
Status Records 1746348 2098167 2936218 3649003 3648443 3800646 3124538 3835427 3352361 34667084
Observed Organisms 11986 12510 15049 18594 21597 20129 21792 22233 19378 101652
Observed Plants 9250 9761 12207 14912 17757 15987 16656 18064 15840 76511
Observed Animals 2736 2749 2842 3682 3840 4142 5136 4169 3538 25141
Species Observed/Observer 4.92 4.22 4.54 4.63 5.01 5.05 4.91 6.05 5.17 4.44
Plants Species Observed/Observer 3.57 3.24 3.61 3.66 4.08 3.9 3.81 5.1 4.21 3.55
Animals Species Observed/Observer 4.36 4.18 3.98 4.64 4.5 4.73 4.59 5.34 5.4 4.17
Mobile App Records 11.88 12.26 18.53 22.86 25.33 28.97 43.51 47.96 61.9 32.55
Active LPPs 113 141 155 169 181 197 176 169 201 477