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Ed Kroc

@edkroc.bsky.social

560 followers 210 following 94 posts

Statistician, gull lover. At UBC, Vancouver, Canada. I like math, statistics, science, and seabirds. Blog: https://edkroc.wordpress.com/ Salish Sea Urban Gull Monitoring Program: https://ekroc.weebly.com/salish-sea-urban-gull-monitoring-program.html

edkroc.wordpress.com

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Ed Kroc @edkroc.bsky.social · Aug 8

I have one but it's much more stats oriented than eco (a little of that too though). Also, I can get my hands on others but need to be discreet. Can I email you?

Ed Kroc @edkroc.bsky.social · Aug 7

To be fair, it's "lazy" because it's a theorem that requires a proof but often people just take it as definition. Casella and Berger were famously unhappy with the phrase LOTUS, taking a shot at Ross - who introduced the term - in their Statistical Inference text.

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Ed Kroc @edkroc.bsky.social · Jul 21

Would be interesting to formally quantify that though.

Ed Kroc @edkroc.bsky.social · Jul 21

Yes, Spearman is not immune. It is quite literally a Pearson correlation on the rank data. But the deleterious effects are undoubtedly greatly mitigated because transforming data into ranks makes everything look more uniform, and uniform marginals will span the full theoretical -1 to +1 range.

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Ed Kroc @edkroc.bsky.social · Jul 17

Look to the rooftops.

Ed Kroc @edkroc.bsky.social · Jul 16

It's been 10 years for me and I still can't bring myself to chuck them. Someday!

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Ed Kroc @edkroc.bsky.social · Jul 14

Lots of little gull floofs at the Tsawwassen ferry terminal this morning.

Ed Kroc @edkroc.bsky.social · Jul 10

Haha, yes, that happens to me too! 😆 I think serious statisticians can make good arguments for most paradigms. But when it comes to non-statistician scientists appropriately applying them, I think the Fisherian approach is the most foolproof.

Ed Kroc @edkroc.bsky.social · Jul 10

Science, unlike politics, is not about making binary decisions. It's about weighing available evidence and updating plausible beliefs. Those are continuous actions, not discrete.

Ed Kroc @edkroc.bsky.social · Jul 10

That's a good post. I still think the Neyman-Pearson framework completely misses how science is typically done. Rarely do we believe a hypothesis by default. We just have one that aligns best with the evidence or absence thereof.

Ed Kroc @edkroc.bsky.social · Jul 10

Building height continues to be the strongest predictor of nesting propensity for GWGUs.

Ed Kroc @edkroc.bsky.social · Jul 10

Hello, Sechelt. There are two rooftop GW Gull nests in this picture. Can you guess where? Answer below.

Reposted by Ed Kroc

Michelle Wille @duckswabber.bsky.social · Jul 10

In the UK, 2021-2023, 103,497 carcasses of 155 species tested for HPAI. Gannets, Black-headed Gulls, Barnacle Goose most affected. 7500 +ve for HPAI across 80 species. Mortality data to estimate impact.
👉 www.tandfonline.com/doi/full/10....

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Reposted by Ed Kroc

Michelle Wille @duckswabber.bsky.social · Jul 10

Across 13 European countries, only 3 dead Little Terns found in 2022-2023, amongst tens of thousands of breeding birds. Surprising given how other tern species have been impacted.
👉 www.tandfonline.com/doi/full/10....

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Ed Kroc @edkroc.bsky.social · Jul 10

Welcome! Looking forward to some gull content. 🌊🐥

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Reposted by Ed Kroc

BOU @bou.org.uk · Jul 4

Partial Niche Partitioning in Three Sympatric Gull Species Through Foraging Areas and Habitat Selection | doi.org/10.1002/ece3... | Ecology and Evolution | #ornithology #seabirds 🪶

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Reposted by Ed Kroc

Maudeux.creations 🎨🐦 @maudeuxcreations.bsky.social · Jun 21

the ivory gull, one of the most fascinating birds of the Far North!
It stays in the Arctic all winter and follows polar bears to feed on the leftovers of their kills — a brilliant and icy survival strategy ❄️🐻‍❄️
#birdart #wildlifeart #sketchbook #seabirds #natureillustration
🌿 #SciArt 🐡

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Reposted by Ed Kroc

Maudeux.creations 🎨🐦 @maudeuxcreations.bsky.social · Jun 14

More Arctic gulls! The Sabine’s gull is a beautiful bird I dream to see one day!
This watercolor is part of my “Arctic Larids” poster, available as a print in Maudeux Redbubble shop. #birdart #wildlifeart #sketchbook #sabinesgull #natureillustration #scientificillustration
🌿 #SciArt 🐡

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Reposted by Ed Kroc

Maudeux.creations 🎨🐦 @maudeuxcreations.bsky.social · Jun 11

Sketches of the Mediterranean gull... I quite like the one sunbathing 😎
These humorous drawings are based on real biology!
#birdart #characterdesign #natureillustration #sketchbook #wildlifeart #MediterraneanGull #funnybirds #nonbreedingplumage
🌿 #SciArt 🐡 #FieldworkSketches

Sketches of mediterranean gull characters. They are enjoying the sun with sunglasses and cocktail. The idea is to illustrate its wintering grounds—far from the cold of Northern Europe ❄️.
So the bird is shown in its non-breeding plumage (yes, the black head is just for summer!)

Sketches of mediterranean gull characters. One is flying, an other one on the water and an other one is taking off its sunglasses.

Sketches of mediterranean gull characters. One has a breeding plumage and try to seduce a partner and the other one is looking at it's tags on its legs...

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Reposted by Ed Kroc

Eldar Rakhimberdiev @eldarrak.bsky.social · Jun 13

New PhD position in our group! Join us to study gull foraging ecology at sea using GPS and accelerometry data! You will be working here Amsterdam Movement Ecology group under supervision of @judyshamounb.bsky.social, @rooskentie.bsky.social and me. Apply here werkenbij.uva.nl/en/vacancies...

Vacancy — PhD Position Gull Foraging Ecology in the North Sea - NO-REGRETS Project

Are you passionate about animal movement ecology? Interested in studying gull foraging ecology at sea? Apply for this unique PhD opportunity at the Department of Theoretical and Computational Ecology ...

werkenbij.uva.nl

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Ed Kroc @edkroc.bsky.social · Jun 14

I'm glad to see you and your family are all safe.

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Reposted by Ed Kroc

Common Tern Project @commonternproject.bsky.social · Jun 8

Weekend loveliness: retrapping a gull-billed tern carrying a GPS and getting to know a few of the newest colony members.

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Ed Kroc @edkroc.bsky.social · Jun 8

I always liked Maugham.

Ed Kroc @edkroc.bsky.social · Jun 7

Haha, yes, that is a great observation! 😂

Ed Kroc @edkroc.bsky.social · Jun 6

Haha, no worries! Yes, home base is Vancouver, but I'm always on the gulls up and down the N. American Pacific coast. Just starting to expand work into the Baja Peninsula!