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USA National Phenology Network @usa-npn.bsky.social · 2d

Thanks for alerting us to this bug, @drrambio.bsky.social! The Observed Day of Onset is correct, but it shouldn't show as "144 days late." We'll fix that. The 9 days early is correct for the basemap, which is the Spring Index Leaf Anomaly. More info on the basemap at usanpn.org/data/maps/sp...

Status of Spring | USA National Phenology Network

usanpn.org

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USA National Phenology Network @usa-npn.bsky.social · 23d

Applications now open for our Local Phenology Leader Certification Course, an interactive, online 10-week course on planning and implementing a long-term phenological monitoring program for your organization or community. Course runs Sep 29-Dec 5. Apply by Sep 21. www.usanpn.org/nn/LPLCertif...

A badge with people, a bird, leaves, and a flower with a banner that reads Nature's Notebook Certified Local Phenology Leader.

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Aug 14

The 2024 #BulletinAMS State of the Climate Assessment is out today. @usa-npn.bsky.social contributed data & info about how #phenology is changing in the U.S. The timing of plant and animal activity such as leaf-out is a strong indicator of species and ecosystem response to changing conditions.

2024 “first leaf” date anomalies across the United States relative to (a) 2023 and (c) the 2011–20 baseline, estimated using the USA National Phenological Network (USA NPN) extended Spring Index (SI-x) model (

Day of year of spring (green shades) and autumn (orange and yellow) vegetation phenology indicators for (a),(b) Harvard Forest, Massachusetts, derived from PhenoCam (PC), ground observations (GO) of red oak (Quercus rubra), and the USA National Phenology Network (USA NPN) regional-scale means of red oak observations (calculated across the northeastern states of Pennsylvania, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and Maine, with ±1 std. error shaded)

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Reposted by USA National Phenology Network

weathersullivan.bsky.social @weathersullivan.bsky.social · Aug 4

Every March I end up on the phone with Theresa Crimmins of the @usa-npn.bsky.social National Phenology Network talking about the advent of spring. So when she said she wrote a book, I had to get it and add it to my summer list of books by people I know: www.barnesandnoble.com/w/phenology-...

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Jun 20

Now, as always, getting outside is good for you and your mood. Thankful for the opportunity to write for Arizona Daily Sun. #phenology
azdailysun.com/opinion/colu...

Spotlight on Climate: Moments in nature can still soothe your climate-weary soul

And just like that, spring is behind us. The first day of summer will be here this weekend. But around the state, we are lacking some of the classic harbingers

azdailysun.com

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Jun 14

@jeremyclark.bsky.social helped the @usa-npn.bsky.social explore options for generating commercial revenue.

It's tough for programs exist to serve the public. I hope our experience can help other programs suddenly struggling with $ loss.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

agupubs.onlinelibrary.wiley.com

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Jun 12

It's not uncommon for spring to start out early and then slow down, or vice-versa... see where either of those sequences of events occurred in the L48 states this past spring:

www.climate.gov/news-feature...

#phenology @usa-npn.bsky.social @climate.noaa.gov

First blooms of the 2025 spring season were earlier than average across most of the United States

According to a long-term index of flower timing, most U.S. areas saw flowers emerge earlier than average, except for a few, mostly coastal areas.

www.climate.gov

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USA National Phenology Network @usa-npn.bsky.social · Jun 10

thank you for the support! 💚

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Apr 28

I invite you to track seasonal changes in plants and animals -- #phenology -- in your yard, to support science, and more importantly, because it is good FOR YOU.

Excited to share my #TEDxUofA talk from last October: youtu.be/3l0fMlv2-5Q

Observing the Outer World to Change Our Inner One | Theresa Crimmins | TEDxUofA

YouTube video by TEDx Talks

youtu.be

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USA National Phenology Network @usa-npn.bsky.social · Apr 24

Some updates from our Green Wave campaign! 🌱💚

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USA National Phenology Network @usa-npn.bsky.social · Apr 22

Blooms haven't changed too much since our last message, with the bottoms of Nebraska, Iowa, and Pennsylvania seeing blooms a few days earlier than average. The West is mostly seeing blooms earlier than average, but there is still some variability in this region.

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USA National Phenology Network @usa-npn.bsky.social · Apr 22

Here's a Status of Spring Update🪻

All states are now seeing signs of spring! Maine still has minimal activity, with some areas seeing leaves a few days later than expected. Signs of spring in the West are still variable, with some places seeing leaves earlier than average and some later.

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USA National Phenology Network @usa-npn.bsky.social · Apr 10

oh no! we hope you start to see spring soon 💚💚

Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Apr 10

Spring didn't really start out very interesting (arriving later than average in much of the south & west), but is showing up early in the middle of the country and creeping into the NE early now! #phenology #statusofspring @usa-npn.bsky.social www.usanpn.org/data/maps/sp...

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USA National Phenology Network @usa-npn.bsky.social · Apr 8

As for blooms, they've been spotted as far north as MD and DE, also about a week earlier than average.

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USA National Phenology Network @usa-npn.bsky.social · Apr 8

The Northeast is finally seeing signs of Spring! Leaf-outs have been spotted as north as NY and MA about a week earlier than average.

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Reposted by USA National Phenology Network

Hubbard Brook Research Foundation @hubbardbrook.bsky.social · Apr 8

Phenology wheel of the view outside Hubbard Brook Research Foundation Program and Education Manager Brendan Leonardi's window in Lincoln, New Hampshire.

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USA National Phenology Network @usa-npn.bsky.social · Apr 3

Check your redbuds for blooms! 🌸
Some updates:
Looks like you're seeing a higher proportion of flowers so far this year than last year. You're also seeing open flowers and young leaves earlier than last year.

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USA National Phenology Network @usa-npn.bsky.social · Mar 25

As for blooms, most of the Southern U.S is now seeing blooms, and most states are seeing them on time with the 20 yr average or a bit earlier.

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USA National Phenology Network @usa-npn.bsky.social · Mar 25

Check out this Status of Spring update! Leaf out activity has expanded to more northern Midwest states like Nebraska and Iowa, with most of them seeing leaves earlier than the 20 yr average.

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USA National Phenology Network @usa-npn.bsky.social · Mar 20

We're so excited!! 💚

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Reposted by USA National Phenology Network

Ben R Lee, PhD @benrlee.com · Mar 20

Tomorrow at 2pm eastern! Come ask me questions about how to use @usa-npn.bsky.social data in phenological research!

#phenology #spring

Ben R Lee, PhD @benrlee.com · Mar 14

Come learn more about #phenology and how to work with @usa-npn.bsky.social data sets a week from today! Webinar is free and open to the public. The rest of phenology week looks great too!

USA National Phenology Network @usa-npn.bsky.social · Mar 14

Join our Researcher Q&A webinar next Friday March 21 at 11am PT / 2pm ET, our final #PhenologyWeek event! Three researchers will share what they learned from #NaturesNotebook data in the last year.

Register - arizona.zoom.us/meeting/regi...

More Phenology Week - www.usanpn.org/news/article...

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Reposted by USA National Phenology Network

Theresa Crimmins @theresacrimmins.bsky.social · Mar 20

First signs of spring make their way northward across the U.S.
www.climate.gov/news-feature... #phenology @usa-npn.bsky.social

First signs of spring make their way northward across the U.S.

While the first day of spring arrives on March 20, many places across the United States see their first signs of the season much sooner. The Spring First Leaf Index, provided by the USA National Pheno...

www.climate.gov

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USA National Phenology Network @usa-npn.bsky.social · Mar 19

Our 2024 Annual Report is here! Below, excerpts from the report including a Letter from our Director, @theresacrimmins.bsky.social, and highlights of #phenology
accomplishments made possible by our partners and observers!

Read the full 2024 Annual Report at usanpn.org/files/npn/re...

Letter from USA-NPN Director Theresa Crimmins as part of the USA-NPN 2024 Annual Report.

Accomplishments infographic from the USA-NPN 2024 Annual Report including number of observers, phenology records, and other statistics from 2024 and the history of the USA-NPN (2009-2024).

Informing Decisions feature from the USA-NPN 2024 Annual Report highlighting how USA-NPN data and products have been used in policy documents.

Creating an Equitable and Inclusive Network feature from the USA-NPN 2024 Annual Report highlighting the new Nature's Notebook app that is currently in development, and the Mobile App Working Group that is giving input on lowering barriers to entry and creating a more welcoming app.

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Reposted by USA National Phenology Network

Andrew Hipp @andrewlhipp.bsky.social · Mar 18

The @usa-npn.bsky.social #Phenology week webinar starts in 10 minutes... details here. Join us if you can!

arizona.zoom.us/webinar/regi...

Quercus laeta in flower; Puebla BUAP botanical garden, 13 March 2025

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