USA National Phenology Network

Phenology is the study of seasonal changes in plants and animals from year to year. This network is a national-scale monitoring and research initiative focused on collecting, organizing, and delivering phenological data and forecasts to support natural resource management and decision-making. 

The network provides tools for citizen scientists to collect, store, and share information on plant and animal life cycle events such as leaf out, flowering, and migration. They offer standardized phenology monitoring protocols, training and education materials, and active communities of observers and researchers. Participants use mobile apps or a browser interface to submit data on over 1,000 species of plants and animals in the United States.

The USA-NPN researcher and manager communities are continually developing tools and techniques to help communities use these observations to support a wide range of decisions that can increase resilience.