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Roberta Dayrell

@robertadayrell.bsky.social

690 followers 330 following 16 posts

Researcher interested in using plant regeneration traits to understand species distribution and advance conservation and restoration practices. #SeedScience #FunctionalTraits #PlantScience #Ecology 🌿

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

🌱 Hello to everyone interested in extracting seed measurements from images! 🌱

I’ve released an experimental version of Traitor, featuring a new option requested by some users: ordered output to keep track of individual seeds during analysis.

Never heard of Traitor?👇🧵

github.com/rdayrell/tra...

GitHub - rdayrell/traitor_sorted-output: This VERY experimental modification introduces a ordered output for seed (and other object) segmentation in Traitor. This is an adaptation for grid-based analy...

This VERY experimental modification introduces a ordered output for seed (and other object) segmentation in Traitor. This is an adaptation for grid-based analyses, where tracking each object is imp...

github.com

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Reposted by Roberta Dayrell

International Society for Seed Science @intlsocseedsci.bsky.social · Feb 18

There are 10 days left to submit your abstract for the ISSS 2025! Don't miss the opportunity to send your work to one of the largest events devoted to #SeedScience 🫘🌱! #Botany #PlantScience 🧪

More information on the following link: isss2025.com.au

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Roberta Dayrell @robertadayrell.bsky.social · Jan 29

Excited to share our latest preprint! 🌱📸🤖

Pablo Gómez Barreiro @pagomba.bsky.social · Jan 28

New preprint just available. Can germination of highly variable tree #seeds be predicted using images? 🌱📸.
We analyzed thousands of individual colour & X-ray seed images from 5 UK tree species, using XGBoost & CNN models to find out.
with @robertadayrell.bsky.social
#plantSci 🌲🧪🌿 #SeedScience

Figure from preprint showing seed collection changes in germination when different models are applied to sort seeds using XGBoost and CNNs models on different images datasets

Reposted by Roberta Dayrell

Omid V. Ebrahimi @omidvebrahimi.bsky.social · Dec 18

Very interesting and accessible take on probability worth a read!

www.nature.com/articles/d41...

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Roberta Dayrell @robertadayrell.bsky.social · Dec 16

Last week, I attended the British Ecological Society meeting for the first time and enjoyed a range of fascinating talks. I also had the opportunity to present our project on the predicted impacts of climate change on the germination of UK tree populations. #kewscience @britishecolsoc.bsky.social

Roberta Dayrell @robertadayrell.bsky.social · Nov 28

Check out our recent blog post on tree seed germination under climate change, where we share insights from our current research. #SeedScience #ClimateChange 😴❄️🌱

www.kew.org/read-and-wat...

A rude awakening: the risks of climate change for sleeping seeds

What happens when seed dormancy meets climate change – and why it matters for our forests.

www.kew.org

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Roberta Dayrell @robertadayrell.bsky.social · Nov 25

It took months to grow seedlings from seeds of some species featured in these photos. Take the quiz by @pagomba.bsky.social and see if you can identify them!

Pablo Gómez Barreiro @pagomba.bsky.social · Nov 25

If you live in the UK, Happy #NationalTreeWeek! We've been working on a project to enhance the future resilience of UK forests, and along the way, we captured some cool pictures of seedlings. Here's a quiz—can you figure out which species is which? 🌲🌱🧪 👇

www.kew.org/read-and-wat...

Quiz: Can you identify the forests of the future, one seedling at a time?

Test your knowledge of trees with our seedling quiz!

www.kew.org

Roberta Dayrell @robertadayrell.bsky.social · Nov 11

OBS: The feature is helpful for analyses where tracking individual seeds or objects is essential. Otherwise, the original version is still recommended! I have not widely tested this update, so please keep an eye on the results and let me know how it works for you.

Roberta Dayrell @robertadayrell.bsky.social · Nov 11

With this new method, we hope to open new avenues for exploring the functional relevance of morphological traits and advancing new tools for seed identification. #SeedMorphology #TraitExtraction #ImageAnalysis #Automation #SeedEcology #OpenScience #highthroughputphenotyping (7/7)

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

We also show how the output can be used to build objective classification categories for shape with high visual interpretability. (6/7)

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

In the paper, we demonstrate how Traitor's output can be used to obtain representative seed colours for taxa and determine the phylogenetic signal of seed colour. (5/7)

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

You don't need to know Python to use Traitor! Once you've installed the required software, you just need to enter some basic commands in your computer's prompt or terminal to extract the traits. Check out our instructions here: github.com/TankredO/trait… this is the original version! (4/7)

https://github.com/TankredO/trait…

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

Traitor effortlessly separates seeds from high-contrast backgrounds. There is no need for training, manual fine-tuning, or thresholding. You can extract traits from hundreds of images from various taxa with just three simple commands! (3/7)

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

Our approach combines a simple image acquisition protocol with Traitor, an open-source software that 'exposes' seeds, revealing their size, shape and colour measurements. (2/7)

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

We introduced a method to automatically extract objective and interpretable seed morphological traits from images. doi.org/10.1111/2041-2… (1/7)

https://doi.org/10.1111/2041-2…

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Roberta Dayrell @robertadayrell.bsky.social · Nov 11

github.com

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Reposted by Roberta Dayrell

Jim Dalling @dallingjim.bsky.social · Nov 7

🧪 Happy to share a link to our Tansley Review on wood nutrients: underexplored functional traits. nph.onlinelibrary.wiley.com/doi/epdf/10.... We highlight the enormous variation in wood nutrient concentrations among species, links to masting, resprouting and ecosystem carbon via decomposition.

Sapwood phosphorus concentrations for temperate, subtropical and tropical trees

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Roberta Dayrell @robertadayrell.bsky.social · Sep 12

Check out the thread below for highlights from our latest paper! 👇 #SeedEcology

Annals of Botany @annbot.bsky.social · Sep 11

🌱 Check the newly published paper ‘Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis’ in @annbot.bsky.social by Carlos Ordóñez-Parra @caordonezparra.bsky.social and co-authors. 🧵(1/8)

👉 botany.fyi/h3t7l3

@robertadayrell.bsky.social

Roberta Dayrell @robertadayrell.bsky.social · Sep 10

Today, I presented our latest work on using image analysis to enhance the use of native seeds at the Congresso Brasileiro de Sementes. Thrilled to see image analysis solutions and the need for collaborative databases getting more attention at seed meetings!

@pagomba.bsky.social

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Roberta Dayrell @robertadayrell.bsky.social · Sep 10

Excited to share our latest paper in @annbot.bsky.social ! We provide a quantitative review of seed functional ecology in Brazilian rock outcrop vegetation. @caordonezparra.bsky.social
doi.org/10.1093/aob/...

Seed functional ecology in Brazilian rock outcrop vegetation: an integrative synthesis

AbstractBackground and Aims. Rock outcrop vegetation is distributed worldwide and hosts a diverse and unique flora that evolved under harsh environmental c

doi.org

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