Karl Andraczek
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karlandraczek.bsky.social
Karl Andraczek
@karlandraczek.bsky.social
200 followers 400 following 22 posts

Postdoctoral researcher @Synthesis centre sDiv. Studying BEF-relationships, feedbacks, climate extremes, belowground plant traits

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Environmental science 44%
Agriculture 19%
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karlandraczek.bsky.social
Karl Andraczek @karlandraczek.bsky.social · Oct 13
I had the honour to write a @newphyt.bsky.social commentary on this fantastic paper — summarizing its key insights and exploring exciting directions for future research. Hope it may spark new ideas and helps the community! ✨
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/...
Trajectories of alpine plant communities under climate change.

Reposted by Kris Inwood, Karl Andraczek

lauradee.bsky.social
Laura Dee @lauradee.bsky.social · 7d
Hi #causalsky - Has anyone done a dynamic DiD set up when we have accumulating treatments or multiple events with cumulative effects? Some units are true controls, some have one event, some have multiple at different points in time. @jmwooldridge.bsky.social @pedrosantanna.bsky.social please Repost!

Reposted by Ben Bond‐Lamberty, Michael T. Meyer, Maria Paniw , and 4 more

gsimpson.bsky.social
Gavin Simpson @gsimpson.bsky.social · 7d
🚨 GAMs have moved on—so it’s time for an update.

On March 3, 2026 (17:00–19:00 CET) I’ll be livestreaming an updated introduction to Generalized Additive Models in R

📺 YouTube livestream link: youtube.com/live/A9U8e1K...

#RStats #mgcv #GAMs #gratia #statistics 🧪
What's new in the world of Generalized Additive Models
YouTube video by Bottom of the Heap
youtube.com

Reposted by Laurent Bergé, Karl Andraczek

paulgp.com
Paul Goldsmith-Pinkham @paulgp.com · 11d
One of the most important statistical packages made in Econ in the last decade
paperposterbot.bsky.social ArXiv Paperboy (Stat.ME+Econ.EM) @paperposterbot.bsky.social · 11d
arXiv📈🤖
Fast and user-friendly econometrics estimations: The R package fixest
By Berg\'e, Butts, McDermott
fixest is an R package for fast and flexible econometric estimation, providing a comprehensive toolkit for applied researchers. The package particularly excels at fixed-effects estimation, supported by a novel fixed-point acceleration algorithm implemented in C++. This algorithm achieves rapid convergence across a broad class of data contexts and further enables estimation of complex models, including those with varying slopes, in a highly efficient manner. Beyond computational speed, fixest provides a unified syntax for a wide variety of models: ordinary least squares, instrumental variables, generalized linear models, maximum likelihood, and difference-in-differences estimators. An expressive formula interface enables multiple estimations, stepwise regressions, and variable interpolation in a single call, while users can make on-the-fly inference adjustments using a variety of built-in robust standard errors. Finally, fixest provides methods for publication-ready regression tables and coefficient plots. Benchmarks against leading alternatives in R, Python, and Julia demonstrate best-in-class performance, and the paper includes many worked examples illustrating the core functionality.

Reposted by Karl Andraczek

saocousins.bsky.social
SAOCousins @saocousins.bsky.social · 14d
New publication 🥳
I am very pleased to contribute with one of these dots, particularly as it is from an area overlooked for its many grassland habitats. #climate #biodiversity #grassland #carbon🌍🧪
@stockholm-uni.bsky.social
rdcu.be/e0YLg
The global extent of the grassland biome and implications for the terrestrial carbon sink
Nature Ecology & Evolution - By combining satellite observations with ground-based data and expert validation, this analysis demonstrates considerable misestimation of grassland extent and...
rdcu.be

Reposted by Brian J. Enquist, Monica G. Turner, Julie L. Lockwood , and 5 more

martin-nunez.bsky.social
Martin A. Nuñez @martin-nunez.bsky.social · 17d
Great postdoc opportunity in Sweden!! With the one and only David Wardle 🧪🌐
www.umu.se/en/work-with...
Post doctor (3 years) within mountain plant community and ecosystem processes across a globally distributed experiment
www.umu.se

Reposted by Karl Andraczek

bexplo.bsky.social
Biodiversity Exploratories @bexplo.bsky.social · 24d
Only 2 weeks left to submit abstracts #BE20Conference!
Deadline & early-bird registration: 31 Jan 2026

Biodiversity researchers from around the world are welcome.
Berlin, 8–12 June 2026

More info: www.biodiversity-exploratories.de/de/be20/

#Biodiversity #Ecology #ScienceCommunity #Berlin2026

Reposted by Brian J. Enquist, Ben Bond‐Lamberty, Jonathan Lenoir , and 8 more

tommaso-jucker.bsky.social
Tommaso Jucker @tommaso-jucker.bsky.social · 24d
Massive update to the Global Wood Density Database out today @newphyt.bsky.social led by the brilliant Fabian Fischer. What an amazing community resource!
🧪🍁🌐

nph.onlinelibrary.wiley.com/doi/10.1111/...

Reposted by Antonio J. Pérez‐Luque, Karl Andraczek

dudney-joan.bsky.social
Dr. Joan Dudney @dudney-joan.bsky.social · 27d
Come work with us in beautiful Santa Barbara!
dudney-joan.bsky.social Dr. Joan Dudney @dudney-joan.bsky.social · Dec 18
Please repost! The LOC Lab @UCSB is recruiting a #PostdoctoralScholar in forest ecology and data science to
develop data-driven models of forest resilience to compound disturbances (e.g., fire, drought, insects). 🌱🍁🌏🧪🌐

Applications due Feb 5
Apply here: www.landscapesofchangelab.com/were-hiring-1

Reposted by Ingolf Kühn, Nicolas Gross, Karl Andraczek

billurbektas.bsky.social
Billur Bektaş 🍃 @billurbektas.bsky.social · Jan 8
“Bektaş et al. (2026) offer a valuable template for future studies embracing the complexity of whole-plant strategies, inviting the scientific community to go beyond the traditionally used traits (Matthus et al., 2025).”
Thank you @karlandraczek.bsky.social & @newphyt.bsky.social 🙏🏽
newphyt.bsky.social New Phytologist @newphyt.bsky.social · Jan 8
Acclimation lags in alpine #grasslands reveal early warning signs of #ClimateChange

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue
Fig. 1 Trajectories of alpine plant communities under climate change.

Reposted by Karl Andraczek, Billur Bektaş

newphyt.bsky.social
New Phytologist @newphyt.bsky.social · Jan 8
Acclimation lags in alpine #grasslands reveal early warning signs of #ClimateChange

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue
Fig. 1 Trajectories of alpine plant communities under climate change.

Reposted by Ben Bond‐Lamberty, Darío Martin‐Benito, Joan Dudney , and 3 more

mixedforests.bsky.social
Florian Schnabel @mixedforests.bsky.social · Dec 22
Just before the Xmas break🎉

In @journalofecology.bsky.social and led by Anvar Sanaei, we provide insight into #trait coordination across 90 common and future European #tree species👇

doi.org/10.1111/1365...

@agwirthweigelt.bsky.social @unileipzig.bsky.social @uni-freiburg.de
Above‐ and below‐ground trait coordination across 90 angiosperm and gymnosperm tree species in a common garden experiment
This research highlights the significance of elucidating the mechanisms behind above-and below-ground organs. The varying trait coordination across clades indicates different resource acquisition str...
doi.org

Reposted by Julie L. Lockwood, Darío Martin‐Benito, Karl Andraczek , and 1 more

josephtumber.bsky.social
Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · Dec 20
Recruiting a postdoc through Dartmouth's Society of Fellows Program co-mentored with Michael Cox with specialization in forest carbon dynamics, climate policy, and nature-based solutions

Apply by January 4th!
apply.interfolio.com/176741

🌳🌎🧪

Reposted by Ben Bond‐Lamberty, Kevin J. Anchukaitis, Stephen D. Murphy , and 2 more

dudney-joan.bsky.social
Dr. Joan Dudney @dudney-joan.bsky.social · Dec 18
Please repost! The LOC Lab @UCSB is recruiting a #PostdoctoralScholar in forest ecology and data science to
develop data-driven models of forest resilience to compound disturbances (e.g., fire, drought, insects). 🌱🍁🌏🧪🌐

Applications due Feb 5
Apply here: www.landscapesofchangelab.com/were-hiring-1

Reposted by Stephen D. Murphy, Karl Andraczek, Benjamin Wildermuth

mixedforests.bsky.social
Florian Schnabel @mixedforests.bsky.social · Dec 12
🌳Interested in doing a PhD within the Excellence Cluster Future Forests @uni-freiburg.de?🌲

We are hiring a doctoral researcher for the project "Stand Density Management for #Forest Adaptation to #Drought“

Application link: uni-freiburg.de/en/job/00004...

Website: uni-freiburg.de/futureforest...

Reposted by Doerthe Tetzlaff, Ben Bond‐Lamberty, Tommaso Jucker , and 5 more

journalofecology.bsky.social
Journal of Ecology @journalofecology.bsky.social · Dec 11
🌱 Delve deeper into the ecology of soil with "The Ecology of Soil: From communities to ecosystems", a fascinating new book release from our Executive Editor Richard Bardgett!

🪱 Read more: buff.ly/6A4abeW

Reposted by Brian J. Enquist, Julia Koricheva, Carlos P. Carmona , and 7 more

castretis.bsky.social
Pablo Castro Sánchez-Bermejo @castretis.bsky.social · Dec 11
In trees, intraspecific and intraindividual leaf trait variability decrease along a gradient of tree species richness and are an important part of functional diversity in forest stands,
Our new paper is already out in @natcomms.nature.com

doi.org/10.1038/s414...

Want to know more about it? 🧵
Intraspecific and intraindividual trait variability decrease with tree richness in a subtropical tree biodiversity experiment - Nature Communications
In forests, trait expression is influenced by tree-tree interactions. Castro Sánchez-Bermejo et al. show how phenotypic variability of tree species decreases with tree diversity and contributes import...
doi.org

Reposted by Helmut Hillebrand, Malte Jochum, Karl Andraczek

michalfilipiak.bsky.social
Michał Filipiak @michalfilipiak.bsky.social · Dec 9
🧵1/5
🌍🔬 Our new paper is out! We identify the global mechanisms shaping the elemental composition of organisms — and the results overturn long-standing assumptions in ecology.

👇 Thread ↓
doi.org/10.1038/s414...
Nitrogen deposition reveals global patterns in plant and animal stoichiometry - Nature Communications
Organisms vary in their nitrogen and phosphorus content, shaping ecological and evolutionary processes. This study shows that nitrogen deposition is a consistent global factor associated with plant an...
doi.org

Reposted by Joan Dudney, Karl Andraczek

jebyrnes.bsky.social
Jarrett Byrnes @jebyrnes.bsky.social · Dec 2
Nice preprint for eco evo folk to check out from @sfwalmsley.bsky.social and colleagues - Towards a causal understanding of bidirectional effects in ecology and evolution - ecoevorxiv.org/repository/v... #causalinference 🌍
Towards a causal understanding of bidirectional effects in ecology and evolution
ecoevorxiv.org

Reposted by Ben Bond‐Lamberty, Karl Andraczek

josephtumber.bsky.social
Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · Nov 24
Postdoctoral Fellowship at the Dartmouth College Society of Fellows – Environmental Studies

Come join myself and Michael Cox, as we recruit a postdoc with specialization in forest carbon dynamics, climate policy, and nature-based solutions!

www.esacareercenter.org/job/2002606/...
Postdoctoral Fellowship at the Society of Fellows – Environmental Studies - Hanover, New Hampshire job with Environmental Studies Program, Dartmouth College | 2002606
The Society of Fellows at Dartmouth College invites applications for a fellowship in the Department of Environmental Studies.
www.esacareercenter.org

Reposted by Ben Bond‐Lamberty, Tommaso Jucker, Ondřej Mottl , and 2 more

cfarrior.bsky.social
Caroline Farrior @cfarrior.bsky.social · Nov 17
Like math and plant community ecology?

I am recruiting one or two new Ph.D. students to work on theory and its integration with data in the areas of forest dynamics, species coexistence, or plant community ecology more generally.

Deadlines for the EEB and Plant Biology programs are Dec. 1.
Ecology, Evolution and Behavior
The Ecology, Evolution and Behavior graduate program at The University of Texas at Austin is top-10 ranked.
integrativebio.utexas.edu

Reposted by Johannes Quaas, John Parker, Karl Andraczek , and 1 more

idiv-research.bsky.social
iDiv Biodiversity Research @idiv-research.bsky.social · Nov 13
New study led by @lsachsenmaier.bsky.social @agwirthweigelt.bsky.social shows: forest stands made up of tree species with different water-use strategies (not just many species) grow better in drought years. #iDivResearch #Biodiversity
www.idiv.de/diverse-fore...
Diverse forests are more resistant to climate change
www.idiv.de

Reposted by Ingolf Kühn, Julie L. Lockwood, Karl Andraczek , and 1 more

urban-sci.bsky.social
Marc Cadotte @urban-sci.bsky.social · Nov 11
please share with your networks.

A great opportunity for a postdoc interested in working on synthesizing exotic tree benefits and risks into an integrated framework to address conflict-generating alien taxa. In beautiful Stellenbosch, South Africa.

Apply by November 28 at:
https://bit.ly/4p9K8dn

Reposted by Karl Andraczek

rmcelreath.bsky.social
Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · Nov 10
So many nonsense ad hoc pipelines could be prevented by requiring that they work on synthetic data.

I tend to think of experiments as special cases of inference, since most of the problems I work on cannot be studied in experiments. But I get that many researchers see experiments as base analogy.
adamjkucharski.bsky.social Adam Kucharski @adamjkucharski.bsky.social · Nov 9
"Validate With Simulated Truth: A first habit is to test whether an analytical pipeline can recover known conditions."

Very good advice below. So much COVID nonsense (e.g. 'immunological dark matter') basically came down to a non-identifiable model that hadn't been properly tested.
Modelling Like an Experimentalist
Dahlin et al. (2024) apply experimental thinking to a model of mosquito-borne disease transmissions.
onlinelibrary.wiley.com

Reposted by Karl Andraczek

exfumo.bsky.social
Go Belowground! @exfumo.bsky.social · Nov 10
When fire digs deeper 🔥🌹🌱 A new on our blog ▶️ 1url.cz/oJSXO Even in fire-adapted grasslands, too much fire can erode resilience! by @alinebombo.bsky.social
#GoBelowground #ExFuMo #Brazil #CamposRupestres #Resilience #buds #regeneration #rhizome #root
@ibotcz.bsky.social @czechacademy.bsky.social
When fire digs deeper: How changing fire frequency reshapes the belowground world of campos rupestres
New research by Aline Bertolosi Bombo at the Lab of Vegetation Ecology, São Paulo State University (UNESP). Above are views of the stunning campos rupestres in southeastern Brazil — ancie…
1url.cz

Reposted by Ben Bond‐Lamberty, Neil Pederson, Katherine Siegel , and 1 more

josephtumber.bsky.social
Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · Nov 6
The Tumber-Dávila Lab and Michael Cox are looking for a postdoctoral Fellow to join the Environmental Studies Department at Dartmouth through the Society of Fellows Program
🌎🧪🌳🍁

apply.interfolio.com/176741
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com

Reposted by Malte Jochum, Karl Andraczek

jebyrnes.bsky.social
Jarrett Byrnes @jebyrnes.bsky.social · Oct 31
Damn - this is really good. Modeling plant communities with Dirichlet regression. I use beta and ordered beta (thanks, @rmkubinec.bsky.social!) a lot, but this is very cool. Something I'd normally use gllvm for, but maybe... ecogambler.netlify.app/blog/plant-c...
Compositional modeling of plant communities with Dirichlet regression | GAMbler
Compositional data appears everywhere in scientific research, yet many analysts fall back on problematic approaches that ignore fundamental mathematical constraints. I demonstrate how Dirichlet regres...
ecogambler.netlify.app

Reposted by Karl Andraczek

dingdingpeng.the100.ci
Julia M. Rohrer @dingdingpeng.the100.ci · Oct 28
When researchers bring up confounders without ever having declared the actual analysis goal
Goose chase meme. Panel 1, goose says: confounder of what? Panel 2, goose chases person, yelling: CONFOUNDER OF WHAT

karlandraczek.bsky.social
Karl Andraczek @karlandraczek.bsky.social · Oct 28
Me too! Thanks a lot for putting this list together! 🌟

Reposted by Ben Bond‐Lamberty, Maria Paniw, Karl Andraczek

billurbektas.bsky.social
Billur Bektaş 🍃 @billurbektas.bsky.social · Oct 27
🧊 Did your model freeze in time? Let’s bring it back to life!
Join our hands-on workshop “Building Near-Term Iterative Forecasting Workflows” at #TIBS2026 – Aarhus, 6 Jan 2026 🌍
We’ll explore how to turn static predictions into dynamic, self-updating forecasts. @paniw.bsky.social

Reposted by Jens‐Christian Svenning, Oliver L. Phillips, Simon L. Lewis , and 19 more

bjenquist.bsky.social
Brian J. Enquist @bjenquist.bsky.social · Oct 21
Please pass along, I’m recruiting PhD students to join our Macroecology Lab @uofa-eeb.bsky.social We study phys ecology, macroecology, biodiversity - spanning scaling, trait-based ecology, theory, comparative biology & ecoinformatics. Several avenues for funding. Please reach out if interested🧪🌐🌾