Juan G. Rubalcaba
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jgrubalcaba.bsky.social
Juan G. Rubalcaba
@jgrubalcaba.bsky.social
110 followers 240 following 7 posts
Macroecologist and modeller - now at UCM https://jrubalcaba.github.io/
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Reposted by Juan G. Rubalcaba
yodacomplex.bsky.social
And our paper is out! One curve to rule them all: a simple universal thermal performance curve for ectotherms that explains at least 2700 datasets across 39 phyla and myriad measures of performance. www.pnas.org/doi/10.1073/...
Biological performance across the tree of life collapses onto the Universal Thermal Performance Curve (UTPC). Shown are approx. 30,000 performance measurements derived from seven kingdoms, 39 phyla, and 2,710 experiments. Performance is represented by diverse rates including metabolism, individual growth, foraging intensity, voluntary activity, and population growth (see SI Appendix for data grouped by phylum and performance metric). Data are presented on both axes relative to the parameters (Topt, Tc and Pfmax ) estimated by fitting the UTPC equation to each of the 2,710 experiments; the UTPC is overlaid as a yellow line and fits the rescaled data extremely well. Data are colored by the relative density of neighboring points showing very high density of points close to the line and relatively few datapoints further from the line. Data collapse, and models converge, onto a Universal Thermal Performance Curve (UTPC), which only requires optimal and critical temperatures as parameters. Top panels show empirical data on thermal performance encompassing (A) specific growth rate of proteobacteria (), (B) biochemical rates of photosynthesis in plants (), (C) running speeds of lizards (), and (D) population growth in insects (). Lower panels (E–H) showcase the rescaled data from the processes exposed on top, along with their corresponding alignment to the Universal Thermal Performance Curve (UTPC) equation. Datasets are from Kontopoulos et al. (21) for proteobacteria and from Rezende and Bozinovic (6) for other groups. The upper panels of the raw data show substantial variation in the shape and location of the thermal performance curves. The lower row shows that rescaling the data using the simple model results in the data conforming to a single underlying curve with very little variation from the model.
October 23, 2025 at 10:01 AM
Reposted by Juan G. Rubalcaba
asn-amnat.bsky.social
Why we aren’t lizards: the evolution of endothermy through optimizing life history
Summary & Analysis by Kaleigh Remick of “The Evolution of Homeothermic Endothermy via Life History Optimization” by Rubalcaba
www.amnat.org/an/newpapers...
Why we aren’t lizards: the evolution of endothermy through optimizing life history
<p>Read about &ldquo;The Evolution of Homeothermic Endothermy via Life History Optimization&rdquo; by Juan G. Rubalcaba (August&nbsp;2025)</p><br/><br/><p><b>Why do endotherms spend so much energy? A ...
www.amnat.org
October 8, 2025 at 8:39 PM
Reposted by Juan G. Rubalcaba
ibartomeus.bsky.social
Five 3-year Postdoc positions open at @ebdonana.bsky.social. I am happy to sponsor and mentor good candidates working in my field, but note that these are quite independent positions aimed at helping stabilize new researchers in the system. www.dropbox.com/scl/fi/4nqkq...
www.dropbox.com
August 18, 2025 at 3:27 PM
Reposted by Juan G. Rubalcaba
peeer.bsky.social
Science deserves better than profit-driven publishing. Change starts from within the community — here’s how we can reclaim it: peeer.net/2025/08/18/r... #BetterPublishing
Rethinking Scientific Publishing: A Call for Change
Scientific publishing lies at the core of academic life. It is the main mechanism through which knowledge is shared, careers are built, and progress is evaluated. However, this system has evolved i…
peeer.net
August 19, 2025 at 12:30 PM
Reposted by Juan G. Rubalcaba
gorizaola.bsky.social
Lo que ocurre en USA no es un suicidio de la Ciencia, es un asesinato.

En un mundo sumido en múltiples crisis, necesitamos más que nunca que se hagan políticas desde el conocimiento, respaldadas por Ciencia básica, y no desde la ignorancia. Y no sólo en USA...

elpais.com/opinion/2025...
El suicidio de la ciencia en EE UU
Las agencias científicas más potentes del mundo están siendo desmanteladas por un Gobierno ignorante y fanatizado
elpais.com
August 11, 2025 at 7:12 AM
Reposted by Juan G. Rubalcaba
asn-amnat.bsky.social
Why do endotherms spend so much energy? Juan G. Rubalcaba describes a theoretical model that shows that species followed one of two possible evolutionary patches: live fast while spending a lot, or live slowly and keep your costs low. Read now!
www.journals.uchicago.edu/doi/10.1086/...
The Evolution of Homeothermic Endothermy via Life History Optimization | The American Naturalist
Abstract Endothermy is an energetically expensive trait, yet it has posed an evolutionary advantage across different lineages—a paradox that remains puzzling to biologists. Here, I investigate whether...
www.journals.uchicago.edu
July 14, 2025 at 3:53 PM
Reposted by Juan G. Rubalcaba
carlos-lara0.bsky.social
🎓 ¡Quedan plazas libres!

📊 Gestión y visualización de datos con R: Convirtiendo datos en historias
📍 Modalidad online | 🕒 Plazas limitadas

¿Quieres aprender a transformar datos en narrativas visuales impactantes usando R?

🔗 Inscripciones: www.aeet.org/events/2025/...
July 3, 2025 at 2:49 PM
jgrubalcaba.bsky.social
Excited and honored to have my first solo paper out in Am Nat!! @asn-amnat.bsky.social doi.org/10.1086/736225
The Evolution of Homeothermic Endothermy via Life History Optimization | The American Naturalist
Abstract Endothermy is an energetically expensive trait, yet it has posed an evolutionary advantage across different lineages—a paradox that remains puzzling to biologists. Here, I investigate whether...
doi.org
June 23, 2025 at 8:57 AM
Reposted by Juan G. Rubalcaba
jsarmentocabral.bsky.social
Postdoc call in Mechanistic Biodiversity Modelling (up to 6 ya) at my lab @unibonn.bsky.social. We focus on modelling terrestrial plant communities, island biogeography, range dynamics, eco-evolutionary feedbacks, diversity gradients, tropical forests, vascular epiphytes. Pls rt! shorturl.at/CL1ny
Postdoc in Mechanistic Biodiversity Modelling with temporary civil servant status (“Akademische*r Rätin*Rat)
100%, A 13, Reference number: 2025/49
shorturl.at
May 29, 2025 at 8:09 AM
Reposted by Juan G. Rubalcaba
psmaldino.bsky.social
As grant money starts drying up, it's more important than ever not to waste it on paying publishers' open access "article processing fees" when we can host PDFs for free. Tom Morgan and I wrote a paper on this, forthcoming at Science and Public Policy. Accepted draft here: osf.io/preprints/os...
Author-Paid PublicationFees Corrupt Science and Should Be Abandoned Thomas J. H Morgan & Paul E. Smaldino
May 9, 2025 at 5:26 PM
Reposted by Juan G. Rubalcaba
seanmichaletz.bsky.social
Fully funded PhD in Plant Ecophysiology at UBC in Vancouver 🍁! Possible topics include leaf physiology, thermal ecology, microclimates, scaling, tree physiology, forest ecology & more. Start Jan/May/Sept 2026. michaletzlab.org
Please share!
#PlantEcoPhys #Ecology #Botany #PhDposition #GradSchool
March 13, 2025 at 9:04 PM
Reposted by Juan G. Rubalcaba
gfandos.bsky.social
📢 Título de experto en Aplicaciones bioinformáticas en biodiversidad, ecología y evolución
📅 26 mayo - 4 julio | ⏰ 15:00 - 20:00
📍 Facultad de Biología, Universidad Complutense de Madrid
💰 300€
🎯 Metodología 100% práctica con proyectos y tutorización experta
📌 Inscríbete ya! ucm.es/formacion-pe...
March 28, 2025 at 11:43 AM
jgrubalcaba.bsky.social
Next week (!!) we are presenting our workshop "integrating mechanisms into species distribution models" - don't miss it! Online 2-4 April www.biogeography.org/news/news/wo... @gfandos.bsky.social @biogeography.bsky.social
March 24, 2025 at 4:40 PM
Reposted by Juan G. Rubalcaba
juralde.bsky.social
Dato mata relato

#lobovivo
#loboprotegido
March 22, 2025 at 2:50 PM
Reposted by Juan G. Rubalcaba
llloredo.bsky.social
Se ha filtrado el borrador de ley de universidades que está preparando la CAM. Si se aprueba, será la muerte de la universidad pública madrileña. Es escandaloso. No exagero. Se vienen tiempos oscuros como no espabilemos. Explico algunos puntos críticos. Va hilo. 👇
March 14, 2025 at 8:49 PM
jgrubalcaba.bsky.social
Real breakthroughs come from long-term investment in public research and then exploited by big tech companies
erc.europa.eu European Research Council (ERC) @erc.europa.eu · Mar 4
It was researchers, predominantly working in public sector universities & laboratories, who developed many of the ideas & techniques that are now being used on a massive scale by the big tech companies.

Maria Leptin's (@marialep.bsky.social) speech @europarl.europa.eu erc.europa.eu/news-events/...
ERC President’s speech to the European Parliament's ITRE Committee
ERC President Professor Maria Leptin' gave a speech as part of an exchange of views with the European Parliament's ITRE Committee, Brussels.
erc.europa.eu
March 4, 2025 at 1:24 PM
Reposted by Juan G. Rubalcaba
natecoevo.nature.com
In our latest Editorial we discuss the continuing damage being done to US science, and its impact on researchers and the environment 👇

Deep cuts: www.nature.com/articles/s41...
Screenshot of text from a Nature Ecology & Evolution Editorial entitled "Deep cuts"
March 3, 2025 at 2:34 PM
Reposted by Juan G. Rubalcaba
biogeography.bsky.social
Join us this Wednesday for our monthly Funk lecture, presented by Dr. Sidney F. Gouveia! To register, please visit our website: www.biogeography.org/news/news/ne...
February 24, 2025 at 8:16 PM
jgrubalcaba.bsky.social
Interested in mechanistic & hybrid species distribution models? Don't miss our workshop! Online - 2-4 April @gfandos.bsky.social
REGISTER: www.biogeography.org/news/news/wo...
February 18, 2025 at 9:22 AM