News


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Phenology Week! March 18-22, 2024

Wed, Feb 07, 2024

March 18-22, 2024 is Phenology Week - a virtual celebration of the seasonal cycles of plants and animals! The purpose of Phenology Week is to celebrate YOU, our Nature's Notebook observers, Local Phenology Programs, and partners! We'll have webinars, awards, daily challenges, observer stories, and more!

Share Phenology Week Content on your social media! Our media kit contains daily activities to share with your community!

Phenology Week Media Kit


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30 million phenology records collected by Nature's Notebook observers

Tue, Aug 09, 2022

This week, we reached a significant new milestone - thirty million phenology records submitted to the National Phenology Database! The 30 millionth record was collected via Nature’s Notebook, the USA-NPN’s plant and animal phenology data collection platform, by Nika Gonzaga, a freshman in Desert View High School's Honors Biology Program in Tucson, Arizona. Nika observed young leaves on a desert willow tree. Nika said "as a freshman, this is my first time ever gathering research like this. It was enjoyable and a very simple task. I hope to do more research on other plants." 


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In Memory of Marjorie Helen Schwartz (1928-2021), faithful phenology observer

Wed, Jan 19, 2022

The USA National Phenology Network laments the passing of Marjorie Helen Schwartz, a long-time lilac observer and mother of USA-NPN co-founder Mark D. Schwartz. Marjorie died peacefully on December 21, 2021 at the age of 93. She lived all her life in the Thumb of Michigan’s Lower Peninsula, an area shaped like that digit on a mitten which juts into Lake Huron. After she married Mark’s father, Donald J. Schwartz, in 1954, they lived in Gagetown, a small village in Tuscola County, where sugar refining, ethanol processing, and growing grains and beans dominate the local economy.


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Additional rainfall data added to Buffelgrass Pheno Forecast

Wed, Jul 14, 2021

Each summer, we deliver a Buffelgrass Pheno Forecast to aid managers in knowing where and when invasive buffelgrass is green across Southern Arizona. The forecast is based on known precipitation thresholds for triggering green-up to a level where management actions are most effective. In 2021, we added weather station-based forecasts of buffelgrass green up to the gridded forecasts to provide managers with additional data about rainfall.


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USA-NPN Director featured on The Weather Channel

Sun, Jul 26, 2020

Spring leaf out is off to an early start this year in much of the Southeast. USA-NPN's Director Theresa Crimmins joined Jim Cantore and Stephanie Abrams on The Weather Channel on January 23, 2020 to talk about the implications of an early spring. Some locations are seeing spring leaf out three weeks ahead of normal (a long-term average of 1981-2010).


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2.5 million NEON records added to National Phenology Database

Thu, Nov 14, 2019

The National Ecological Observatory Network (NEON) uses USA-NPN observational protocols to track plant phenology. In October of 2019, we ingested over 2.5 million phenology data records collected on more than 5,000 individual plants observed at 78 NEON sites collected between 2013-2019 into the USA-NPN's National Phenology Database. These data are reflected in the map of observation records below and are available for visualization and download.


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First ever Local Phenology Leader Clinic and Rally, Oct 2019

Sat, Oct 05, 2019

On October 4-5, 2019, the USA-NPN's National Coordinating Office (NCO) hosted the first Clinic designed specifically for Local Phenology Leaders (LPLs) working on long-term Local Phenology Programs (LPP) using Nature's Notebook. The Clinic was inspired by the gathering for the 10-year anniversary of the USA-NPN in October 2018, where many Leaders said they would welcome the opportunity to get together again in person and share id


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USA-NPN 10 year Anniversary Event

Mon, Oct 22, 2018

In 2018, we commemorated 10 years of the USA National Phenology Network and data collection with Nature's Notebook

On October 19th, we brought together USA-NPN partners and Nature's Notebook leaders and observers at the home of the USA-NPN's National Coordinating Office in Tucson. There we reflected on the last 10 years of the USA-NPN and envisioned the next 10 years. 


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In loving memory of our dear friend and colleague Patty Guertin

Wed, May 23, 2018

It is with heavy hearts that we tell you of a great loss to the USA National Phenology Network. In May 2018 we lost Patty Guertin, our staff botanist who had been with us since the start of the USA-NPN. Taken from the world by cancer far too soon, she is sorely missed by her family, friends, and the coworkers who consider her family.