iiinova — where your digital self keeps evolving

Reposted by Bert van der Veen

Rob Barber @ra-barber.bsky.social · 25/09/2026

Hi all, I've revived my BlueSky account to share info about our ecological monitoring survey (more below). I don't have many followers, but I'm hoping our survey could be really useful for the UK monitoring community. So please pass on to anyone that might find it interesting! arcg.is/1mn48e5

arcg.is

UK Terrestrial and Freshwater Monitoring Survey

103

Bert van der Veen @vdveenb.bsky.social · 20/09/2026

@bobohara.bsky.social I'm told this is rare. Unfortunately, it's Thundurus.

111

Bert van der Veen @vdveenb.bsky.social · 13/09/2026

By extension, you can concoct a method for constrained NMDS. It's lived in my head for a while, but now there's some code for it too github.com/jarioksa/nat....

github.com

natto/R/caxNMDS.R at master · jarioksa/natto

An extreme vegan package of random, experimental and alien code - jarioksa/natto

120

Bert van der Veen @vdveenb.bsky.social · 09/09/2026

For the record, this is how NMDS works. You choose a dissimilarity, and NMDS estimates the ordination scores in a chosen coordinate system (for vegan this is euclidean).

231

Reposted by Bert van der Veen

Bob O’Hara @bobohara.bsky.social · 09/09/2026

Your question seems to be predicated on the idea that dissimilarity indices are ecologically meaningful :-) The distances will be in Euclidean space, so we won’t need other indices. The ecological interpretation should be as good/bad as any other JSDM/GLLVM.

111

Bert van der Veen @vdveenb.bsky.social · 09/09/2026

Same richness, but different composition. That's the point of a multi-species model: richness and composition are connected, and should be analysed as such. Come to my ##NSOGFÖ2026 workshop next week if you want to learn how to do this with #gllvm! nordicsocietyoikos.glueup.com/event/joint-...

030

Bert van der Veen @vdveenb.bsky.social · 08/09/2026

Can vegetation science -please- stop doing regressions of community derived metrics? These kinds of analyses suffer from all kinds of problems, from violation of independence to assuming species respond the same way to the environment, and more.

110

Reposted by Bert van der Veen

American Statistical Association History of Statistics @hos-asa.bsky.social · 21/07/2026

Few statisticians know that Frank Yates, pioneer of experimental design, is responsible for the annoying practice of indicating 3 tiers of statistical significance by stars (*p ≤ 0.05, **p ≤0.01, ***p ≤ 0.001). He soon regretted it and “vehemently opposed its unthinking use”. And here we are.

112954

Bert van der Veen @vdveenb.bsky.social · 13/07/2026

I was told that my lunchtime workshop at #NSO2026 #NSO on predicting species richness from model-based ordination was sold out (which has not happened to me before). The organisation was kind enough to increase the number of participants, so it should be available again during registration. #gllvm

081

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 10/07/2026

Huge thanks to @vdveenb.bsky.social & everyone who joined us for the GLLVMs in R course! 🌿 Bert’s expertise & clarity made complex topics accessible & engaging. Thanks for the great learning experience! Want to join us for the next edition? www.physalia-courses.org/courses-work... #Rstats

041

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 08/07/2026

Day 2 of our #GLVMs in R course with @vdveenb.bsky.social is underway! Today we're exploring Joint Species Distribution Models for binary data, hierarchical environmental responses, species co-occurrence patterns, and predicting species richness and diversity from multispecies models📊 #RStats

031

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 02/07/2026

The #GLLVMs in R with @vdveenb.bsky.social is almost full - last chance to join us next week! Thanks for spreading the word! www.physalia-courses.org/courses-work...

physalia-courses.org

GLLVMs: Advanced multivariate analysis of ecological communities in R

7-10 July 2026

033

Bert van der Veen @vdveenb.bsky.social · 26/06/2026

First time to #IAVS was a great succes! Even though Audun and I are not vegetation scientists, the atmosphere was very welcoming.

130

Bert van der Veen @vdveenb.bsky.social · 25/06/2026

Probably one of the coolest presentation setups I've seen in a long time.

051

Reposted by Bert van der Veen

Ondrej Mottl 🌿💻📈🌍⏳ @ondrejmottl.bsky.social · 25/06/2026

For those who missed my talk at #IAVS2026. Here it is all online: 🔗https://ondrejmottl.github.io/BIODYNAMICS-vegetation-cooccurrence/Documentation/Website/outputs.html Rendered slides: 🖼️https://ondrejmottl.github.io/BIODYNAMICS-vegetation-cooccurrence/Documentation/Presentations/IAVS_2026/_output

1102

Reposted by Bert van der Veen

Ondrej Mottl 🌿💻📈🌍⏳ @ondrejmottl.bsky.social · 23/06/2026

We are in Gijon for #IAVS2026 representing @sciencecharles.bsky.social and @cts.cuni.cz Research of our Lab. of Quantitative Ecology () can be seen as my talk (LT4) and poster by @natynamesna.bsky.social (P111). Come to talk to us! 🔗 bit.ly/CUNI_Quantit... #LoQE #conference

192

Bert van der Veen @vdveenb.bsky.social · 23/06/2026

Ik stel je verhalen eigenlijk altijd op prijs @chrisklomp.nl, maar zullen we autisme niet tot diskwalificatie degraderen?

110

Reposted by Bert van der Veen

Joel Pick @joelpick.bsky.social · 22/06/2026

What is the replication crisis? Is it a problem in Ecology and Evolution? Can journals help us fight it? I'll be answering all these questions and more later this week in a free and open @sortee.bsky.social webinar. Come along to find out more!!

01813

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 17/06/2026

Today we are running our AI-assisted Coding Workshop at Nord University in Bodø (Norway)! We couldn’t ask for a better setting: an amazing location, inspiring surroundings, and excellent infrastructure for learning and collaboration.

042

Reposted by Bert van der Veen

Nordic Society Oikos @nordicoikos.bsky.social · 15/06/2026

🌿 Early‑bird registration is now open! You can now register for the joint NSO–GfÖ 2026 conference at the early‑bird rate from 15 June-17 July. After this, the full fee applies until 16 Aug 2026. 🔗 Website: vist.ly/57ri8 #NSO2026 #GfOe2026 #NSO‑GfÖ‑conference

Informative flyer for the NSO-GfÖ conference in September 2026 featuring early-bird registration details. Background of serene coastal scenery.

178

Bert van der Veen @vdveenb.bsky.social · 13/06/2026

It hit me that we can con gllvm into facilitating gllvm::glmmVA with mixed response types, in a way that is akin to how to handle these things with INLA (look @bobohara.bsky.social, putting your wisdom to work!), which I think allows you to fit the random effect structure below?

120

Bert van der Veen @vdveenb.bsky.social · 04/06/2026

Apparently navigating the ordination minefield is easier than getting AI to reproduce my face.

020

Bert van der Veen @vdveenb.bsky.social · 03/06/2026

At #NSO2026 @nordicoikos.bsky.social I will give a workshop on improved prediction of species richness with #gllvm. I will present background theory to explain why this is better than your typical log-linear regression of richness, which will be accompanied by a paper later in the year.

231

Reposted by Bert van der Veen

Eric Pedersen @ericjpedersen.bsky.social · 08/09/2023

Hi #stats folks! Curious about how GAMs work behind the scenes? I've put together a shiny app to demonstrate how changing the coefficients for basis functions for a smooth affects the final fitted smooth and the penalty. Looking for any feedback on the UI! 206.12.100.5/gam-basis-de...

206.12.100.5

Demo: Basis functions, coefficients, and penalties

32913

Reposted by Bert van der Veen

Kevin Gannon (now a Moo Deng fan account) @thetattooedprof.bsky.social · 02/06/2026

This came across my IG feed and it's too good to not share here

A pie chart labeled "benefits of staying in academia after PhD" where the categories are salary, wellness, stable mental health, and confidence for your future. They are each associated with a different color. The pie chart has four pieces of different sizes and colors. But the colors in the pie chart do not match the colors Associated with the four items supposedly being visualized here.

16719168

Bert van der Veen @vdveenb.bsky.social · 02/06/2026

"Me: Which ordination method should ecologists use? ChatGPT: gestures broadly at the minefield"

072

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 29/05/2026

Closing the Generalised Linear Models in R course, with a look at powerful extensions of GLMs such as GAMs and GLMMs. A big thank you to @vdveenb.bsky.social for delivering another outstanding edition of the GLMs in R course! www.physalia-courses.org/courses-work...

262

Reposted by Bert van der Veen

Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 28/05/2026

Thinking about how this might go Listener: My chains aren't converging Andrew: Your model is bad Aki: Your parameterization is bad Richard: The Buddha teaches us that numerical integration is suffering

215725

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 25/05/2026

The 3rd edition of Generalized Linear Models in R, led by @vdveenb.bsky.social is now officially underway All the info here: www.physalia-courses.org/courses-work... #GLMs #Rstats

021

Reposted by Bert van der Veen

Ben Bolker @bbolker.bsky.social · 23/05/2026

FWIW this is for this: lme4.r-universe.dev/lme4/doc/glm... ; companion to Bates et al 2015 JSS lmer paper, which fell through the cracks for 10 years. Not too much new here (IMO), but it's the reference document for the implementation of glmer(). (Available as a vignette in dev version.)

lme4.r-universe.dev

181

Reposted by Bert van der Veen

Ashkaan K. Fahimipour @akfbio.bsky.social · 22/05/2026

Reptiles with longer Wikipedia pages tend to be bigger. The relationship is a power law with exponent = 0.85. I guess humans really like writing about big lizards? The longest article is the Komodo Dragon.

13348117

Bert van der Veen @vdveenb.bsky.social · 19/05/2026

I've had quite a few review requests on ordination come in lately; three this week alone. I decline not because I don't want to review, I actually do. I always feel guilty turning down perfectly reasonable requests. Except the ones that misspell my name. Reviewer 2 can deal with those.

140

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 18/05/2026

Struggling with GLMs or not sure where to start? Join our online course (25–29 May) with @vdveenb.bsky.social - Generalised Linear Models in R. Learn regression as a unified framework for Gaussian, binary & count data. www.physalia-courses.org/courses-work...

011

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 12/05/2026

Boost your multivariate data analysis skills! Join us for the GLLVMs in R (7–10 July) online course with @vdveenb.bsky.social Learn model-based multivariate analysis of ecological communities using GLMs, GLMMs, JSDMs & model-based ordination in R with gllvm www.physalia-courses.org/courses-work...

022

Bert van der Veen @vdveenb.bsky.social · 11/05/2026

When are classical ordination methods still useful for community ecologists in 2026? Asking for a friend. #gllvm

010

Reposted by Bert van der Veen

Anna-Liisa Laine @annaliisalaine.bsky.social · 07/05/2026

We’re hiring! We invite applications for an Ecological Statistician to join our team. Work at the interface of cutting-edge biodiversity science and statistics. DL 27 May @jarnovanhatalo.bsky.social @rececochange.bsky.social @erc.europa.eu jobs.helsinki.fi/job/Helsinki...

jobs.helsinki.fi

Ecological Statistician

02648

Bert van der Veen @vdveenb.bsky.social · 04/05/2026

Follow your course on multivariate analysis with @gsimpson.bsky.social up, with my course on advanced multivariate analysis. www.physalia-courses.org/courses-work...

physalia-courses.org

GLLVMs: Advanced multivariate analysis of ecological communities in R

7-10 July 2026

022

Bert van der Veen @vdveenb.bsky.social · 28/04/2026

In case it wasn't obvious from my previous post, we're also looking for a bunch of students interested in Ecological Forecasting. Please forward to any that may be interested. Details and application guide at www.uni-bayreuth.de/en/master/ec...

010

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 24/04/2026

2 - Generalized Linear Mixed Models (GLMMs) in R with @florianhartig.bsky.social This course extends GLMs to the mixed-effects framework, now a standard approach for analysing complex experimental and observational data. www.physalia-courses.org/courses-work...

physalia-courses.org

Generalized Linear Mixed Models (GLMMs) in R

21-24 September 2026 To foster international participation, this course will be held online

001

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 24/04/2026

We are pleased to announce two upcoming online courses in statistical modelling in R, focused on one of the most widely used frameworks in applied data analysis: generalised linear models and mixed models.🧵

231

Reposted by Bert van der Veen

Physalia-courses@ONLINE @physaliacourses.bsky.social · 24/04/2026

1 - Generalised Linear Models in R with @vdveenb.bsky.social This course introduces GLMs as a unified framework for statistical analysis, showing how many classical methods (t-tests, ANOVA, regression) are special cases of the same model family www.physalia-courses.org/courses-work...

physalia-courses.org

Generalised Linear Models in R

25-29 May 2026 To foster international participation, this course will be held online TOPIC: Generalized Linear Models as a unified framework for data analysis in R

111

Bert van der Veen @vdveenb.bsky.social · 14/04/2026

The new Master's programme in Ecological Forecasting at UBT and JMU Würzburg is looking to employ six lecturers and a program coordinator! For more information, please contact Prof. Steven Higgins (www.pfloek.uni-bayreuth.de/en/team/higg...).

21513

Bert van der Veen @vdveenb.bsky.social · 14/04/2026

I'd love to go, as per usual, but how do people pay for this sort of thing? $500 for the conference, a flight to Mexico and hotel.. I'm not exactly made of money. Are there perhaps travel grants for conferences in Germany? Beyond DAAD I haven't really found anything..

020

Bert van der Veen @vdveenb.bsky.social · 13/04/2026

Looks like I'm going to @iavs5.bsky.social this summer to tell people about model-based ordination: The One Method That Rules Them All. #IAVS2026 #gllvm

020