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Karl Andraczek

@karlandraczek.bsky.social
226 followers 429 following 28 posts

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

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Reposted by Karl Andraczek
Jakob Runge @jakobrunge.bsky.social · 30/09/2026
Marina Höhne and I are hiring a postdoc in XAI × causal inference at Uni Potsdam (CRC 1294)! Strong ML background, experience in XAI or causality, curious about the other. Time series a plus. Full-time E13 TV-L, funded until 6/2029, no teaching. DM us & please share! #XAI #CausalInference
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Brian J. Enquist @bjenquist.bsky.social · 28/09/2026
Please pass along: I’m recruiting PhD students to join our Macroecology Lab. We study physical ecology, macroecology, and biodiversity — spanning scaling, trait-based ecology, theory, comparative biology & ecoinformatics. Several avenues for funding. Please reach out if interested 🧪🌐🌾
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Iva Vukušić @vukusiciva.bsky.social · 21/09/2026
This ridiculous number of applications is, in my view, the result of 2 nightmare developments happening concurrently 1.the precariousness of the job market for young PhD graduates which then fuels further: 2.the AI tools enabling overproduction of proposals. #Research #ERC #ResearchFunding #Academia
Just a screenshot with an EU logo saying that the 2026 call has attracted considerable interest from the research community with 21,627 applications submitted.
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Fons van der Plas @fonsvanderplas.bsky.social · 18/09/2026
New paper out, on a grassland experiment in which we manipulated plant alpha and beta diversity, and found that both affect plant productivity: esajournals.onlinelibrary.wiley.com/doi/10.1002/.... Thanks to @henneckejustus.bsky.social @agwirthweigelt.bsky.social Katie Barry and Lea von Sivers.
esajournals.onlinelibrary.wiley.com
Effects of biotic homogenization on community assembly and biomass production in an α × β‐diversity grassland experiment
Various studies have shown that local loss of plant species within patches (i.e., α-diversity loss) hampers plant biomass production, raising concerns about the consequences of biodiversity loss. How....
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Benjamin Delory @benjamindelory.bsky.social · 18/09/2026
New #PhD position at @niooknaw.bsky.social with @ciskaveen.bsky.social. Interested in studying how remote sensing can be used to quantify ecosystem functioning in grasslands and forests? You will be co-supervised by Prof. Stefan Dekker and me. Deadline: 18/10/2026. vacatures.knaw.nl/job/PhD-cand...
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Pablo Castro Sánchez-Bermejo @castretis.bsky.social · 11/09/2026
In our new preprint we propose a way to measure and partition diversity by working directly on the distributions. If you wanna try this with your own data, we created functions for calculating diversity, partitioning it and visualizing distributions 📈 Check the functions: doi.org/10.5281/zeno...
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ESIIL @cu-esiil.bsky.social · 12/08/2026
Please join us in welcoming our five new ESIIL postdocs: Dr. Brian Lee, Dr. Yu Peng, Dr. Karl Andraczek, Dr. Wyatt Million, and Dr. Sam Lapp. View their bios on our website here: esiil.org/about#team
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Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · 05/09/2026
Pretty cool that our article made it onto @botany.one’s list of most shared papers this week! www.botany.one/science-shar...
botany.one
Science Shared: September 5
This week: Oxygen developing leaves, oxygen burning leaves, GPT's problems for non-native English speakers and more.
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Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · 03/09/2026
Fantastic thread by Karl showing some of the things we have been working on with sUnderfoot @idiv-research.bsky.social Including our newly published database paper and concept paper! Check it out I’m excited for what’s left to come!
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Karl Andraczek @karlandraczek.bsky.social · 03/09/2026
🌱 1/3: Recap before 2 new #sUnderfoot papers 🔔 last year we proposed six Belowground Persistence Types (BPTs) to predict disturbance responses, led by @jitkaklimesova.bsky.social 💐 @cp-trendsplantsci.bsky.social www.cell.com/trends/plant...
Dichotomous key for determination of belowground persistence types is based on three hierarchical questions: Is the plant woody? Is the plant clonal? Is the plant a resprouter?
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New Phytologist @newphyt.bsky.social · 03/09/2026
✨ Paper spotlight ✨ (🧵1/4) Still standing: persistence traits capture belowground plant functions beyond resource exploration and acquisition nph.onlinelibrary.wiley.com/doi/10.1111/...
Fig. 1 Conceptual linkages between traits and plant functioning lead to three dimensions of variation in the belowground functional space.
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Brian J. Enquist @bjenquist.bsky.social · 31/08/2026
Thrilled to announce that my department - Ecology and Evolutionary Biology - at the U of Arizona will likely be hiring for a tenure-track position in "Population and Community Ecology" this fall. Watch this space for more details and official announcements coming soon ... #Ecology #EcologyJobs 🌐🌾🧪
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Corrie Moreau @corriemoreau.bsky.social · 23/08/2026
📣 📣 📣 UPDATE: The 2026-2027 list of faculty and postdoc positions in ecology and evolutionary biology is out! Be sure to check out this active and helpful community run resource! docs.google.com/spreadsheets...
docs.google.com
ecoevojobs.net 2026-27
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Pablo Castro Sánchez-Bermejo @castretis.bsky.social · 12/08/2026
Species’ traits, climatic niches or home ranges are naturally described as distributions in continuous spaces. In this new preprint we present a framework for measuring and partitioning diversity in these spaces using equivalent numbers and probability density functions doi.org/10.64898/202...
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New Phytologist @newphyt.bsky.social · 14/07/2026
On the relationship between root economics and plant hydraulic traits Sanaei et al. @anvarsanaei.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...
Conceptual summary figure shows the results of the relationships between aboveground plant hydraulic strategies and root economics space traits.
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Katya Isabelle Bandow @botanykat.bsky.social · 06/07/2026
Leaf size is an important trait shaping species distributions globally. We looked at how climate and evolutionary history influence leaf size in conifers! Spoiler: lots of evolutionary conservatism! Check out our paper in @globalchangebio.bsky.social out now: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Leaf Size in Conifers: Global Associations With Climate and Evolutionary History
Global patterns in leaf size are linked to climatic trade-offs, so we explore these relationships in a major group of plants, the conifers. Using contemporary phylogenetic methods, we show that conif....
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Joey Bernhardt @joeybernhardt.bsky.social · 22/06/2026
🧪 New paper alert from our lab! 🔥🧪 Making predictions for competition in a warming world has been a challenge. We find that warming levels the playing field among species, altering competition, even in the benign portion of species niches Check it out here! onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
General Predictions for the Effects of Warming on Competition
We combined two major theories in ecology to investigate whether warming may have general effects on competition for shared resources. We found that species' niche and fitness differences both decrea...
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iDiv Biodiversity Research @idiv-research.bsky.social · 17/06/2026
⏳ 1 week left! Apply now for the iDiv Fellowship Programme and spend dedicated time advancing your research at iDiv. 📅 Deadline: 24 June 2026 🔗 www.idiv.de/research/fel...
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Wirth-Weigelt Research Group @agwirthweigelt.bsky.social · 11/06/2026
Last week #root #science went to Como 🌱🇮🇹 Srijna Saxena, Michelle ter Huurne and Dr Anvar Sanaei joined #WoodyRoots9 @woodyroots.bsky.social to share fresh work on root economics, drought responses and plant hydraulics.
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Biodiversity Exploratories @bexplo.bsky.social · 09/06/2026
📣#BE20conference: Day 2 Today's program featured inspiring keynote talks by Richard Bardgett, @ducciorocchini.bsky.social and Rachael Winfree as well as workshops. Another day full of insightful discussions and new perspectives on biodiversity and ecological research. ✨ #bexplo #Biodiversity
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Charles C. Lanfear @clanfear.bsky.social · 01/06/2026
For those interested: clanfear.github.io/CSSS_2026-04...
clanfear.github.io
Reciprocal relationships, reverse causality, and temporal ordering
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iDiv Biodiversity Research @idiv-research.bsky.social · 21/05/2026
⏳ 1 week left! Submit your pre‑proposal for the iDiv Synthesis Centre Working Group Call. 📅 Deadline: 28 May 2026 🔗 www.idiv.de/research/sdi...
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Francisco Rodriguez-Sanchez @frodsan.bsky.social · 17/05/2026
#StatsPubs No matter how many times you read it, this paper on hierarchical GAMs keeps giving. Clear model explanations together with R code (mgcv). So useful! doi.org/10.7717/peer... Thanks for writing @ericjpedersen.bsky.social, D. Miller, @gsimpson.bsky.social @noamross.net
In this paper, we discuss an extension to two popular approaches to modeling complex structures in ecological data: the generalized additive model (GAM) and the hierarchical model (HGLM). The hierarchical GAM (HGAM), allows modeling of nonlinear functional relationships between covariates and outcomes where the shape of the function itself varies between different grouping levels. We describe the theoretical connection between HGAMs, HGLMs, and GAMs, explain how to model different assumptions about the degree of intergroup variability in functional response, and show how HGAMs can be readily fitted using existing GAM software, the mgcv package in R. We also discuss computational and statistical issues with fitting these models, and demonstrate how to fit HGAMs on example data. All code and data used to generate this paper are available at: github.com/eric-pedersen/mixed-effect-gams.
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Dylan Craven Moore @dylancraven.bsky.social · 10/05/2026
Happy to share a wonderful collaborative effort led by #ForestIsbell, showing how resistance and recovery predict stability www.nature.com/articles/s41...
nature.com
Predicting temporal stability and resilience from resistance and recovery - Nature
New predictions for how temporal stability and resilience depend on their resistance and recovery components are explored.
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Brian J. Enquist @bjenquist.bsky.social · 06/05/2026
Contrasting pathways to tree longevity in gymnosperms and angiosperms www.nature.com/articles/s41...
nature.com
Contrasting pathways to tree longevity in gymnosperms and angiosperms - Nature Communications
Tree longevity is thought to increase in harsh environments, but global evidence of drivers is lacking. Here, the authors find two different pathways for tree longevity: slow growth in resource limite...
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Akira S Mori @akkym.bsky.social · 07/05/2026
Paper published, led by Forest Isbell. We developed a new theoretical framework to predict how temporal stability and resilience emerge from the combined effects of resistance and recovery. www.nature.com/articles/s41...
nature.com
Predicting temporal stability and resilience from resistance and recovery - Nature
New predictions for how temporal stability and resilience depend on their resistance and recovery components are explored.
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Rob Salguero-Gómez @robsalgo.bsky.social · 02/05/2026
Hiring 3 postdocs in ecological resilience @biology.ox.ac.uk for my @erc.europa.eu CoG ResIntegrate project. Deadline May 29th. Details below. Pls share @salgoteam.bsky.social @evoldir.bsky.social @britishecologicalsociety.org @ecologicalsociety.bsky.social @ecolsocaus.bsky.social
jobs.ac.uk
Postdoctoral Research Associate in Ecology at University of Oxford
An academic position as a Postdoctoral Research Associate in Ecology is being advertised on jobs.ac.uk. Click now to find more details and explore additional academic job opportunities.
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Go Belowground! @exfumo.bsky.social · 28/04/2026
#GoBelowground is going international again! 🇧🇷 This time we go to Brazil. #Functional #morphology #course Go Belowground! will bring students together to explore #storage organs, #clonal plants, and the hidden half of #plant life. #ExFuMo #ecology @czechacademy.bsky.social @ibotcz.bsky.social
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Marten Winter @smartenwinter.bsky.social · 27/04/2026
🚨 Two major iDiv calls are now accepting applications! 🔹 iDiv Synthesis Centre Working Group Call 🔹 iDiv Fellowship Programme Call 🔗 More info, application criteria + deadlines: www.idiv.de
idiv.de
iDiv - Integrative Biodiversity Research
The German Centre for Integrative Biodiversity Research (iDiv) is a global leader in biodiversity science, dedicated to understanding the variety of life on Earth.
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iDiv Biodiversity Research @idiv-research.bsky.social · 24/04/2026
🚨 Two major iDiv calls are now accepting applications! 🔹 iDiv Synthesis Centre Working Group Call 🔹 iDiv Fellowship Programme Call 🔗 More info, application criteria + deadlines: www.idiv.de
This is a one-page summary of the iDiv Synthesis Centre Working Group Call.This is a one-page summary of the iDiv Fellowship Programme Call.
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Wirth-Weigelt Research Group @agwirthweigelt.bsky.social · 17/04/2026
🌳 New paper out! Congrats to our PhD researcher Analena Lenk 🎉 Drought, ash dieback & missing floods are reshaping floodplain forests in Leipzig. The study shows how targeted understorey thinning can support diverse regeneration. 🔗 www.sciencedirect.com/science/arti... #ForestEcology #ClimateChange
sciencedirect.com
Regeneration dynamics in response to an openness gradient caused by ash dieback, drought effects and understorey forest management in a meliorated European floodplain forest
Pathogens and droughts lead to increasingly thinned forests worldwide, shaping regeneration conditions. In Leipzig (Germany), we investigated the curr…
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Nadine Ruehr @nadineruehr.bsky.social · 16/04/2026
🌲🌳 PhD opportunity: Forest Vulnerability to Hotter Droughts Interested in forest ecosystems, climate extremes & tree stress resilience? 🎓 Dual PhD (KIT 🇩🇪 + Melbourne 🇦🇺) 🔬 Plant Ecophysiology Lab, Garmisch-Partenkirchen 🇩🇪 🌍 +1-year research stay 🇦🇺 👉 Apply here: t1p.de/g39co
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New Phytologist @newphyt.bsky.social · 11/04/2026
#TansleyInsight: Diversity affects microclimate temperature and humidity: an overview of the evidence and major unanswered questions Alexandra J. Wright, J. English & C. Guimaraes-Steinicke 👇 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... #LatestIssue #PlantScience
Fig. 1 We measured relative humidity every 5 min during the growing season in the Biodiversity, CO2, and Nitrogen (BioCON) experiment in central Minnesota in 2012 (Reich et al., 2001, Wright et al., 2015
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Ran Blekhman @blekhman.bsky.social · 05/04/2026
I wrote about why every lab should have AI use guidelines, and how to do it. open.substack.com/pub/blekhman...
open.substack.com
You need to make AI guidelines for your lab
Here's why you should, and how to start
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Vincent Arel-Bundock @vincentab.bsky.social · 04/04/2026
This looks like a great resource!
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Natalie Cooper @nhcooper123.bsky.social · 25/03/2026
Hi all. I am very excited that after 6 years I finally got my phylogenetic comparative methods book and online exercises online. Feel free to use and share. The book is here: nhcooper123.github.io/pcm-primer/. Note that it is not finished, we had to abandon it before the sunk costs fallacy broke us
nhcooper123.github.io
Phylogenetic Comparative Methods
Phylogenetic Comparative Methods
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Pete Manning @peteecology.bsky.social · 24/03/2026
Out now in Methods in Ecology and Evolution: Accounting for spatial interactions in the upscaling of ecosystem services. Led by Lari Boesing. A how to guide to upscaling ES, particularly those driven by the movement of matter and mobile organisms besjournals.onlinelibrary.wiley.com/doi/10.1111/...
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 22/03/2026
Statistical Rethinking 2026 is done: 20 new lectures emphasizing logical and critical statistical workflow, from basics of probability theory to causal inference to reliable computation to sensitivity. It's all free, made just for you. Lecture list and links: github.com/rmcelreath/s...
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Jitka Klimesova @jitkaklimesova.bsky.social · 27/02/2026
We are looking for a new PhD student: Parallel Evolution of Clonality in Angiosperms www.ibot.cas.cz/en/vacancies...
ibot.cas.cz
Graduate Student Position (M/F) 0204
Graduate Student Position (M/F) in Parallel Evolution of Clonality in Angiosperms...
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CBC Conference @cbc-conference.bsky.social · 26/02/2026
🌎 The 𝗻𝗲𝘅𝘁 𝗸𝗲𝘆𝗻𝗼𝘁𝗲 𝘀𝗽𝗲𝗮𝗸𝗲𝗿 that the 𝗖𝗕𝗖 𝗖𝗼𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 will have the honor of presenting is 𝗣𝗿𝗼𝗳. 𝗟𝗶𝗲𝘀𝗷𝗲 𝗠𝗼𝗺𝗺𝗲𝗿 (𝗕𝗲𝗹𝗼𝘄𝗴𝗿𝗼𝘂𝗻𝗱 𝗘𝗰𝗼𝗹𝗼𝗴𝘆, 𝗪𝗮𝗴𝗲𝗻𝗶𝗻𝗴𝗲𝗻 𝗨𝗻𝗶𝘃𝗲𝗿𝘀𝗶𝘁𝘆 @w-u-r.bsky.social)
A photo of Prof. Liesje Mommer and the text below:
"Keynote Speaker: Prof. Dr. Liesje Mommer is Professor of Belowground Ecology at Wageningen University & Research and a leading expert on plant-soil interactions and biodiversity. Her research focuses on how belowground processes - particularly root interactions, soil microbes, and pathogens - shape ecosystem functioning, productivity, and resilience.Poster for the CBC 2026:
Conference on Connecting Biodiversity, Climate and Human Behaviour
Sept 21-24, 2026
Leipzig, Germany
Organized by:
UFZ - Helmholtz Centre for Environmental Research
Universität Leipzig
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ESIIL @cu-esiil.bsky.social · 02/03/2026
How does combining trade, nutrient, and network analyses help inform strategies to increase nutrient retention, strengthen food security, and support resilience for Pacific Island countries? Learn more by visiting the Environmental Defense Fund’s blog post at: blogs.edf.org/edfish/2026/...
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Julia M. Rohrer @dingdingpeng.the100.ci · 25/02/2026
You need to bring in the same toolkit as in studies that try to establish causality without randomization. I know it sounds unfair, but I don’t make the rules. These situations are instances of post-treatment bias, if you want to read up on it as a psychologist:
compass.onlinelibrary.wiley.com
Causal inference for psychologists who think that causal inference is not for them
Correlation does not imply causation and psychologists' causal inference training often focuses on the conclusion that therefore experiments are needed—without much consideration for the causal infer...
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Michael Parks @jurassicparks.bsky.social · 24/02/2026
One alarming thing abt working on a grasslands book is no one seems to know where they are. A couple of years ago, a special issue in Science said between 20 and 40% of Earth's landmass -- the space between those bounds is the size of Africa! These folks groundtruthed, w interesting results...
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Dr. Joan Dudney @dudney-joan.bsky.social · 24/02/2026
New #causalinference paper just dropped! As an ecologist, I was trained to ask: "What do the data tell me?" This paper: there are only specific instances when this question is appropriate—when you lack domain knowledge, which we often have! www.nature.com/articles/s41...
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Laura Dee @lauradee.bsky.social · 24/02/2026
And a nice accessible write up of the paper scienmag.com/from-correla...
scienmag.com
From Correlation to Causation: Ecological Research Tips
In the complex realm of ecological research, one of the most persistent challenges is distinguishing correlation from causation. While statistical correlations can reveal intriguing associations
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Dr Jess Williams @jjwilliams924.bsky.social · 23/02/2026
NEW PAPER🚨Ecological Feedbacks in the Earth System🌍We present an urgent call to the scientific community for the rapid development of understanding of ecological feedbacks and integrated ecosystem—Earth system research 🌐🧪 @imperiallifesci.bsky.social agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Ecological Feedbacks in the Earth System
The role of our planet's diverse ecological feedbacks in Earth system processes is a major knowledge gap We review current knowledge on ecological feedbacks within ecosystems, and between ecologi...
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Pete Manning @peteecology.bsky.social · 18/02/2026
Still time to submit an abstract to the BE20 meeting! Please share.
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Joana Bergmann @joanabergmann.bsky.social · 18/02/2026
The BE20 Conference in Berlin, June 8-12, invites biodiversity researchers from around the world to discuss challenges in long-term and large-scale biodiversity science, and foster interdisciplinary collaborations. www.biodiversity-exploratories.de/en/be20/
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Joana Bergmann @joanabergmann.bsky.social · 09/02/2026
We are searching for a PhD student! Are you curious and excited to unravel how #root #exudation varies between species, how this relates to the root economics space and if and how it explains ecosystem functioning and species distribution in #grasslands?
Conceptual graphic of the project aims. Depicted is a schematic of the root economics space (RES) with added exudation traits (Work Package 1: integrating exudates into the root economics space). The lower, brown-colored half of the background shows labels such as soil nutrients, soil pH, and soil moisture, with arrows (effects) pointing toward the RES (Work Package 2: environmental filtering of exudation strategies). The upper, green-colored half shows labels such as productivity, carbon cycling, greenhouse gas, and nutrient cycling, with arrows (effects) pointing from the RES toward this area (Work Package 3: effects of exudation strategies on ecosystem functions). Pictograms of a cow, a tractor, and a fertilizer bag signify land-use effects that mediate these interactions.
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Gavin Simpson @gsimpson.bsky.social · 03/02/2026
🚨 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 🧪
youtube.com
What's new in the world of Generalized Additive Models
YouTube video by Bottom of the Heap
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