Karl Andraczek
@karlandraczek.bsky.social
170 followers 390 following 17 posts
Postdoctoral researcher @Synthesis centre sDiv. Studying BEF-relationships, feedbacks, climate extremes, belowground plant traits
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Reposted by Karl Andraczek
timcurran.bsky.social
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
Reposted by Karl Andraczek
rmcelreath.bsky.social
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...

tl;dr

    Collinearity is a form of lack of information that is appropriately reflected in the output of your statistical model.
    When collinearity is associated with interpretational difficulties, these difficulties aren’t caused by the collinearity itself. Rather, they reveal that the model was poorly specified (in that it answers a question different to the one of interest), that the analyst overly focuses on significance rather than estimates and the uncertainty about them or that the analyst took a mental shortcut in interpreting the model that could’ve also led them astray in the absence of collinearity.
    If you do decide to “deal with” collinearity, make sure you can still answer the question of interest.
Reposted by Karl Andraczek
thomasp85.com
And if you want to learn hands on about some of the new things, come to our ggplot2 workshop at posit::conf(2025) next week
thomasp85.com
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
Reposted by Karl Andraczek
hennhouse.bsky.social
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! 🔥🌿🐮
A grassland on a sunny day near Boulder, CO
Reposted by Karl Andraczek
peteecology.bsky.social
3 year Postdoctoral Research Fellow position in Landscape Multifunctionality here in beautiful Bergen jobbnorge.no/en/available... please repost
Reposted by Karl Andraczek
sandramduran.bsky.social
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
etiennelalechere.bsky.social
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.
Reposted by Karl Andraczek
jonlen.bsky.social
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 😉
etiennelalechere.bsky.social
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.
Reposted by Karl Andraczek
lauradee.bsky.social
interested in causal inference and ecology? join our Slack to exchange ideas, papers, get feedback, ask and answer questions - let's start a community #causalsky
jebyrnes.bsky.social
Chatting with @lauradee.bsky.social about how many different groups of #causality #ecology folk we have to share papers, code and discussions with, and wouldn't it be nice if we all had a place to interact..... so we made a Causal Ecology slack. So.... if you want to join, DM me and I'll add you! 🌍🧪
Reposted by Karl Andraczek
alettabonn.bsky.social
Artenfinder #citizenscience data set published 🦋🌼🦎
thanks to many volunteers, the #Artenfinder team and #NFDI4Biodiversity Living Atlas - Nature Germany team www.land.gbif.de
@gbif.org @idiv-research.bsky.social @ufz.de
bdj.pensoft.net
А quality-checked citizen science dataset published on @gbif.org with more than 1 million georeferenced species records with a geographic focus on the German federal states of Rhineland-Palatinate (Rheinland-Pfalz) and Berlin: doi.org/10.3897/BDJ....
Reposted by Karl Andraczek
w-joel-schneider.bsky.social
Now on CRAN, ggdiagram is a #ggplot2 extension that draws diagrams programmatically in #Rstats. Allows for precise control in how objects, labels, and equations are placed in relation to each other.
wjschne.github.io/ggdiagram/ar...
An arrow with a LaTeX equation Trigonometric functions and a unit circle A bivariate change model with structured residuals A hierarchical model of cognitive abilities
Reposted by Karl Andraczek
peteecology.bsky.social
Ot now in @natcomms.nature.com: 'Temporal complexity of terrestrial ecosystem functioning and its drivers'. Led by Marcos Fernandez- rdcu.be/eBqev
Reposted by Karl Andraczek
suzeveringham.bsky.social
PhD opportunity available at @westsyduhie.bsky.social with the brillant Dr Laura Williams - hyperspectral data and process-based modelling of tree diversity 🌳🌲 please share with your networks tinyurl.com/ms6mjz8y
Reposted by Karl Andraczek
Reposted by Karl Andraczek
lauradee.bsky.social
Very excited this is out! Also potentially useful for researchers thinking about biodiversity change attribution @jon-chase03.bsky.social @bio-diverse.bsky.social @nmouquet.bsky.social @frbiodiv.bsky.social
Reposted by Karl Andraczek
joeybernhardt.bsky.social
Please help us spread the word! Please amplify!

We are searching for an associate or full professor (Canada Excellence Research Chair) in Biodiversity Genomics at the University of Guelph! 🐟🌿🦠🐜🐸🐝

Applications are due October 6 2025.

careers.uoguelph.ca/job/Guelph-C...

#AcademicJobs #EvoBio
Canada Excellence Research Chair in Biodiversity Genomics
Canada Excellence Research Chair in Biodiversity Genomics
careers.uoguelph.ca
Reposted by Karl Andraczek
science.org
Larry Richardson appeared to be an early-career mathematician with potential, racking up more than 130 citations in 4 years.

It would all be rather remarkable—if the studies weren’t complete gibberish. And if Larry wasn’t a cat. #InternationalCatDay scim.ag/4lg3wTp
How easy is it to fudge your scientific rank? Meet Larry, the world’s most cited cat
“Exercise in absurdity” reveals flaws in Google Scholar’s productivity metrics
scim.ag
Reposted by Karl Andraczek
vizscience.bsky.social
So happy this illustration was accepted into GNSI's annual exhibit! Learn about how trees lock away carbon for centuries—and competing economic interests—in these @seattletimes.com stories: bit.ly/4mwCOqV, bit.ly/4lUk9Fq

Exhibit:
www.gnsi.org/2025-gnsi-ju...

#evergreen #photosynthesis #sciart
Print version of graphic. Trees absorb carbon dioxide from the air and turn it into sugars, using the food to grow. This process, called photosynthesis, allows plants to make their own food, storing the carbon in their tissues as they grow roots, branches and leaves. In this way, trees help fight climate change by absorbing and storing carbon pollution that is heating the planet. Big trees store the most carbon because of their mass, and long-lived species such as Douglas fir and red cedar can lock carbon away for centuries. Trees absorb carbon dioxide gas through openings in leaves or needles called stomata. Chloroplasts within leaves and needles use the energy of the sun to split water molecules drawn up through tree roots into hydrogen and oxygen, released through their stomata. Trees and other green plants create the air we breathe, and shelter and nourish life as we know it. Mobile version of graphic. Trees absorb carbon dioxide from the air and turn it into sugars, using the food to grow. This process, called photosynthesis, allows plants to make their own food, storing the carbon in their tissues as they grow roots, branches and leaves. In this way, trees help fight climate change by absorbing and storing carbon pollution that is heating the planet. Big trees store the most carbon because of their mass, and long-lived species such as Douglas fir and red cedar can lock carbon away for centuries. Trees absorb carbon dioxide gas through openings in leaves or needles called stomata. Chloroplasts within leaves and needles use the energy of the sun to split water molecules drawn up through tree roots into hydrogen and oxygen, released through their stomata. Trees and other green plants create the air we breathe, and shelter and nourish life as we know it.
Reposted by Karl Andraczek
mrhelmus.bsky.social
We should broaden models, not narrow them. Models are tools to explore uncertainty, communicate scenarios, and test policy. Managers seek robust strategies, not perfect forecasts.

What a great paper from @cboettig.bsky.social onlinelibrary.wiley.com/doi/10.1111/... #Forecasting #Ecology 🌐
Reposted by Karl Andraczek
jacquelyngill.bsky.social
Are you an early-career biologist or ecologist who would benefit from an invited seminar? Would you like to come to UMaine next fall or spring to give a talk? Leave a brief comment with some info about what you do. I'm co-hosting our seminar series again, and am filling out our rosters.
Reposted by Karl Andraczek
craig-white.bsky.social
Two (!) ongoing Academic (Research and Teaching) positions in Ecology, here at Monash University in Melbourne. Closing in a little over a week! Please share widely! Both at Lecturer/Senior Lecturer level (similar to Assistant Professor) careers.pageuppeople.com/513/cw/en/jo...
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