Karl Andraczek
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karlandraczek.bsky.social
Karl Andraczek
@karlandraczek.bsky.social

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

Environmental science 44%
Agriculture 19%
Pinned
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/...
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
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
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
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

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.
"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

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
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

When researchers bring up confounders without ever having declared the actual analysis goal

Me too! Thanks a lot for putting this list together! 🌟
🧊 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
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🧪🌐🌾
Open Letter by scientists to the Council:
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
The latest DroughtNet paper is out in Science today! Using coordinated experiments across six continents and 74 sites, the International Drought Experiment found differences between the effects of extreme droughts and more typical droughts... (1/3) www.science.org/doi/10.1126/...
Drought intensity and duration interact to magnify losses in primary productivity
As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with cons...
www.science.org

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/...

Reposted by Karl Andraczek

This came as a beautiful surprise! What an amazing feeling reading a commentary on your paper, especially if you put soooo much work on it! Thank you @karlandraczek.bsky.social and @newphyt.bsky.social !

Many thanks to @newphyt.bsky.social for inviting me to write this commentary, and to @joanabergmann.bsky.social, and my colleagues at @agwirthweigelt.bsky.social, and @idiv-research.bsky.social for their feedback and support! 🙏🌿

Reposted by Billur Bektaş

Predicting how climate warming reshapes plant communities and their functioning is crucial. But how can we unearth its effects — especially in rapidly warming alpine systems? ⛰️🥵
👉 @billurbektas.bsky.social et al. shed light on this in an inspiring study: nph.onlinelibrary.wiley.com/doi/10.1111/...
Traits and functions of alpine plant communities respond strongly but not always sufficiently to in situ climate change
Increasing climate warming and summer droughts are known to affect mountain plant communities, their functional traits and life strategies. However, little is known about how strongly and efficientl...
nph.onlinelibrary.wiley.com
Our first paper from the Bug-Network (BugNet) is out! 🎉

BugNet is a global network studying how invertebrate herbivores and fungal pathogens shape plant diversity & ecosystem functioning worldwide. The paper reports on the methods of the experimental part:

📄 onlinelibrary.wiley.com/doi/10.1002/...
The Bug‐Network (BugNet): A Global Experimental Network Testing the Effects of Invertebrate Herbivores and Fungal Pathogens on Plant Communities and Ecosystem Function in Open Ecosystems
The Bug-Network (BugNet) is a novel global collaborative research network that implements standardized consumer-reduction experiments in herbaceous- or shrub-dominated ecosystems to assess the impact...
onlinelibrary.wiley.com
Great PhD opportunity with an excellent supervisor:

Quantify traits of tree species across the western US to determine how tree populations and forest communities will respond to drought and fire.

plant-traits.net/lab-openings/
Lab openings | Laughlin Research Lab
plant-traits.net
Was asked about collinearity again, so here's Vahove's 2019 post on why it isn't a problem that needs a solution. Design the model(s) to answer a formal question and free your mind janhove.github.io/posts/2019-0...
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN.

It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.

Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
We're recruiting!! Myself along with Nathan Gill, Dylan Schwilk @schwilk.org, and Katharine Suding are recruiting people for Master's, PhD, and postdoc positions in GrassFire, an NSF funded project examining fuels and fire risk in grassland ecosystems across the Southern Great Plains! 🔥🌿🐮

3 year Postdoctoral Research Fellow position in Landscape Multifunctionality here in beautiful Bergen jobbnorge.no/en/available... please repost
Looking for a #postdoct for a NSF project integrating ecosystem productivity, hyperspectral remote sensing and airborne LiDAR to test prominent hypothesis of the effect of #biodiversity on #forest #productivity @fluxnetecn.bsky.social @ngaps.bsky.social Apply at: jobs.colostate.edu/postings/165...

Reposted by Karl Andraczek

Biology, what are you doing? Follow the rules.
www.science.org/content/arti...
Ant queen lays eggs that hatch into two species
Bizarre discovery of interspecies cloning “almost impossible to believe,” biologists say
www.science.org
Very proud & glad to be part of this amazing work led by Étienne on the relevance of lagging dynamics in biotic responses to environmental conditions 🦉🦇🦔🦌🌱🌾🪻🍀🌳🌲

If you interested in modeling species ranges or biodiversity patters in space & time, our paradigm shift should be of interest to you 😉
Biodiversity doesn’t respond instantly to its driver, yet most assessments assume it does. 🚨

The paradigm shift we propose in considers multiple trajectories of long-term environmental changes and disturbance events that cumulate and push biodiversity into a quasi-permanent non-equilibrium state.
Biodiversity doesn’t respond instantly to its driver, yet most assessments assume it does. 🚨

The paradigm shift we propose in considers multiple trajectories of long-term environmental changes and disturbance events that cumulate and push biodiversity into a quasi-permanent non-equilibrium state.