Violeta Calleja
@violetacalleja.bsky.social
Postdoc @ebdonana.bsky.social
Exploring ecological interactions through the lens of Complex Systems 🌱
violetavivi.github.io
Exploring ecological interactions through the lens of Complex Systems 🌱
violetavivi.github.io
Reposted by Violeta Calleja
Our team just released a comprehensive and accessible review of Signed Networks — two years in the making! Theory, methods, applications, all in one place. Feedback welcome.
arxiv.org/abs/2511.17247
arxiv.org/abs/2511.17247
Signed Networks: theory, methods, and applications
Signed networks provide a principled framework for representing systems in which interactions are not merely present or absent but qualitatively distinct: friendly or antagonistic, supportive or confl...
arxiv.org
November 24, 2025 at 10:08 AM
Our team just released a comprehensive and accessible review of Signed Networks — two years in the making! Theory, methods, applications, all in one place. Feedback welcome.
arxiv.org/abs/2511.17247
arxiv.org/abs/2511.17247
Reposted by Violeta Calleja
🚨 Job alert 🚨 Postdoc position in ecological forecasting 📈 as part of the Horizon Europe OSCARS call. The postdoc will be based in lovely Sevilla (fantastic place to live) and will include working closely with several European forecasting projects. Apply by Dec 11! 🌎🧪 globalchangeeco.com/jobs
November 24, 2025 at 9:38 AM
🚨 Job alert 🚨 Postdoc position in ecological forecasting 📈 as part of the Horizon Europe OSCARS call. The postdoc will be based in lovely Sevilla (fantastic place to live) and will include working closely with several European forecasting projects. Apply by Dec 11! 🌎🧪 globalchangeeco.com/jobs
Reposted by Violeta Calleja
Join us for an @smtpb.bsky.social workshop on Modern Coexistence Theory. We'll cover mathematical foundations, the theory of partitioning, and data-based applications. Featuring @swatipatel.bsky.social, Nick Kortessis, & Lauren Shoemaker. Zoom link here: smtpb.org/event-6426026
November 19, 2025 at 6:57 PM
Join us for an @smtpb.bsky.social workshop on Modern Coexistence Theory. We'll cover mathematical foundations, the theory of partitioning, and data-based applications. Featuring @swatipatel.bsky.social, Nick Kortessis, & Lauren Shoemaker. Zoom link here: smtpb.org/event-6426026
Reposted by Violeta Calleja
🚨 El registro ya está ABIERTO
cs3.es/conference-2...
hasta el 19 de diciembre
📍 21-23 enero 2026, Sevilla
¡Esperamos veros a todos en Sevilla!
cs3.es/conference-2...
hasta el 19 de diciembre
📍 21-23 enero 2026, Sevilla
¡Esperamos veros a todos en Sevilla!
November 17, 2025 at 9:06 AM
🚨 El registro ya está ABIERTO
cs3.es/conference-2...
hasta el 19 de diciembre
📍 21-23 enero 2026, Sevilla
¡Esperamos veros a todos en Sevilla!
cs3.es/conference-2...
hasta el 19 de diciembre
📍 21-23 enero 2026, Sevilla
¡Esperamos veros a todos en Sevilla!
Reposted by Violeta Calleja
I haven't been very active here for several months, because I've been working on a new book. Soon I will be able to tell you about it. Is anyone out there interested?
November 17, 2025 at 8:57 AM
I haven't been very active here for several months, because I've been working on a new book. Soon I will be able to tell you about it. Is anyone out there interested?
Reposted by Violeta Calleja
📅Our speaker next week is Violeta Calleja-Solanas @violetacalleja.bsky.social (Estación Biológica de Doñana):
⭐The effect on stability of the temporal variability of species interactions⭐
Zoom Link: iite.info/seminar/
Global times: www.timeanddate.com/worldclock/f...
Open to all, see you there!
⭐The effect on stability of the temporal variability of species interactions⭐
Zoom Link: iite.info/seminar/
Global times: www.timeanddate.com/worldclock/f...
Open to all, see you there!
November 11, 2025 at 10:03 AM
📅Our speaker next week is Violeta Calleja-Solanas @violetacalleja.bsky.social (Estación Biológica de Doñana):
⭐The effect on stability of the temporal variability of species interactions⭐
Zoom Link: iite.info/seminar/
Global times: www.timeanddate.com/worldclock/f...
Open to all, see you there!
⭐The effect on stability of the temporal variability of species interactions⭐
Zoom Link: iite.info/seminar/
Global times: www.timeanddate.com/worldclock/f...
Open to all, see you there!
Reposted by Violeta Calleja
Cerramos nuestro cartel de invitados con 🥁...
Miguel Ángel Muñoz, Universidad de Granada
Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Miguel Ángel Muñoz, Universidad de Granada
Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
November 12, 2025 at 8:45 AM
Cerramos nuestro cartel de invitados con 🥁...
Miguel Ángel Muñoz, Universidad de Granada
Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Miguel Ángel Muñoz, Universidad de Granada
Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Reposted by Violeta Calleja
Nos hace mucha ilusión anunciar a
Débora Zurro, Institución Milá y Fontanals de Investigación en Humanidades (CSIC)
como conferenciante invitada. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Débora Zurro, Institución Milá y Fontanals de Investigación en Humanidades (CSIC)
como conferenciante invitada. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
November 10, 2025 at 10:37 AM
Nos hace mucha ilusión anunciar a
Débora Zurro, Institución Milá y Fontanals de Investigación en Humanidades (CSIC)
como conferenciante invitada. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Débora Zurro, Institución Milá y Fontanals de Investigación en Humanidades (CSIC)
como conferenciante invitada. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Registro próximamente
🌐 cs3.es/conference-2026/
Reposted by Violeta Calleja
📅 Mark your calendar!
Join us next Monday, Nov 17 at 11 AM ET, for our next seminar with Dr. Violeta Calleja Solanas (Doñana Biological Station) on time-varying ecological interactions.
See you all there!✨
Join us next Monday, Nov 17 at 11 AM ET, for our next seminar with Dr. Violeta Calleja Solanas (Doñana Biological Station) on time-varying ecological interactions.
See you all there!✨
November 10, 2025 at 5:37 PM
📅 Mark your calendar!
Join us next Monday, Nov 17 at 11 AM ET, for our next seminar with Dr. Violeta Calleja Solanas (Doñana Biological Station) on time-varying ecological interactions.
See you all there!✨
Join us next Monday, Nov 17 at 11 AM ET, for our next seminar with Dr. Violeta Calleja Solanas (Doñana Biological Station) on time-varying ecological interactions.
See you all there!✨
Reposted by Violeta Calleja
So proud of this paper 🥳 Could not have done it without the amazing team along side me: Lauren Shoemaker, Lauren Hallett, Peter Vesk, @oscar-godoy.bsky.social and @mmayfieldecology.bsky.social
🆕 in "Ecological Monographs": Static models miss the mark—adding nonlinear, density-based facilitation helps predict coexistence, persistence, and realistic community dynamics
📄Neighbor density-dependent facilitation promotes coexistence and internal oscillation
doi.org/10.1002/ecm....
📄Neighbor density-dependent facilitation promotes coexistence and internal oscillation
doi.org/10.1002/ecm....
November 11, 2025 at 8:56 AM
So proud of this paper 🥳 Could not have done it without the amazing team along side me: Lauren Shoemaker, Lauren Hallett, Peter Vesk, @oscar-godoy.bsky.social and @mmayfieldecology.bsky.social
Reposted by Violeta Calleja
I am pleased to announce a new postdoctoral position in Theoretical Ecology. More info here: info.bc3research.org/2025/11/06/p...
Postdoctoral position in agroecology for TRANSFORM Project
The Basque Centre for Climate Change (BC3) is offering a full-time postdoctoral research position to support activities within a Horizon Europe project. The project focuses on developing innovative cr...
info.bc3research.org
November 6, 2025 at 3:40 PM
I am pleased to announce a new postdoctoral position in Theoretical Ecology. More info here: info.bc3research.org/2025/11/06/p...
Reposted by Violeta Calleja
Why do some cancers respond to immunotherapy while others don’t? A new paper by @guimaguade.bsky.social shows, using maths, that as tumors mutate, they face a trade-off: growing faster can also make them easier for the immune system to spot. @sandyanderson.bsky.social www.biorxiv.org/content/10.1...
October 31, 2025 at 11:30 PM
Why do some cancers respond to immunotherapy while others don’t? A new paper by @guimaguade.bsky.social shows, using maths, that as tumors mutate, they face a trade-off: growing faster can also make them easier for the immune system to spot. @sandyanderson.bsky.social www.biorxiv.org/content/10.1...
Reposted by Violeta Calleja
¡Continuamos con nuestros conferenciantes invitados!
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Maria Paniw, EBD-CSIC
@paniw.bsky.social
🚨 ¡Envía tu abstract hasta el 1 de noviembre!
🌐 cs3.es/conference-2026
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Maria Paniw, EBD-CSIC
@paniw.bsky.social
🚨 ¡Envía tu abstract hasta el 1 de noviembre!
🌐 cs3.es/conference-2026
October 31, 2025 at 8:53 AM
¡Continuamos con nuestros conferenciantes invitados!
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Maria Paniw, EBD-CSIC
@paniw.bsky.social
🚨 ¡Envía tu abstract hasta el 1 de noviembre!
🌐 cs3.es/conference-2026
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Maria Paniw, EBD-CSIC
@paniw.bsky.social
🚨 ¡Envía tu abstract hasta el 1 de noviembre!
🌐 cs3.es/conference-2026
Reposted by Violeta Calleja
Ecology faces an accumulation of models but not an accumulation of confidence. Our new paper w/ Jonathan Levine www.nature.com/articles/s41... in @natecoevo.nature.com introduces a rigorous test rooted in queueing theory to falsify inadequate models and build confidence in useful ones.
Rigorous validation of ecological models against empirical time series - Nature Ecology & Evolution
Validating theoretical models against empirical data presents challenges. Here the authors present an assumption-light method to validate ecological models against time series data, along with a dedic...
www.nature.com
October 27, 2025 at 1:49 PM
Ecology faces an accumulation of models but not an accumulation of confidence. Our new paper w/ Jonathan Levine www.nature.com/articles/s41... in @natecoevo.nature.com introduces a rigorous test rooted in queueing theory to falsify inadequate models and build confidence in useful ones.
Reposted by Violeta Calleja
Our new paper shows that bonobos and chimpanzees organize their relationships in human-like “circles of friends.” Also, bonobos spread their attention more evenly while chimps are more selective — and grow even more so with age, just like us.
Read more: doi.org/10.1016/j.is...
Read more: doi.org/10.1016/j.is...
Redirecting
doi.org
October 27, 2025 at 5:20 PM
Our new paper shows that bonobos and chimpanzees organize their relationships in human-like “circles of friends.” Also, bonobos spread their attention more evenly while chimps are more selective — and grow even more so with age, just like us.
Read more: doi.org/10.1016/j.is...
Read more: doi.org/10.1016/j.is...
Reposted by Violeta Calleja
3 días para el cierre de contribuciones!!
👉 cs3.es/conference-2...
👉 cs3.es/conference-2...
Kermit Typing GIF
ALT: Kermit Typing GIF
media.tenor.com
October 27, 2025 at 10:15 AM
3 días para el cierre de contribuciones!!
👉 cs3.es/conference-2...
👉 cs3.es/conference-2...
Reposted by Violeta Calleja
Are you a young researcher in Complex Systems?
Do you need financial support to present your research at a Complex Systems conference/Workshop?
Or to visit another researcher and collaborate on an innovative project?
Our grants are back!
Do you need financial support to present your research at a Complex Systems conference/Workshop?
Or to visit another researcher and collaborate on an innovative project?
Our grants are back!
October 27, 2025 at 12:25 PM
Are you a young researcher in Complex Systems?
Do you need financial support to present your research at a Complex Systems conference/Workshop?
Or to visit another researcher and collaborate on an innovative project?
Our grants are back!
Do you need financial support to present your research at a Complex Systems conference/Workshop?
Or to visit another researcher and collaborate on an innovative project?
Our grants are back!
Reposted by Violeta Calleja
Nos hace mucha ilusión anunciar a 🥁...
Luís F Seoane, Institute for Evolutionary Biology (UPF-CSIC)
@brigan.bsky.social
como conferenciante invitado. Os esperamos el 21-23 enero 2026 en Sevilla!
👉 Envía tu abstract hasta el 30 Oct 2025
cs3.es/conference-2...
Luís F Seoane, Institute for Evolutionary Biology (UPF-CSIC)
@brigan.bsky.social
como conferenciante invitado. Os esperamos el 21-23 enero 2026 en Sevilla!
👉 Envía tu abstract hasta el 30 Oct 2025
cs3.es/conference-2...
October 21, 2025 at 7:54 AM
Nos hace mucha ilusión anunciar a 🥁...
Luís F Seoane, Institute for Evolutionary Biology (UPF-CSIC)
@brigan.bsky.social
como conferenciante invitado. Os esperamos el 21-23 enero 2026 en Sevilla!
👉 Envía tu abstract hasta el 30 Oct 2025
cs3.es/conference-2...
Luís F Seoane, Institute for Evolutionary Biology (UPF-CSIC)
@brigan.bsky.social
como conferenciante invitado. Os esperamos el 21-23 enero 2026 en Sevilla!
👉 Envía tu abstract hasta el 30 Oct 2025
cs3.es/conference-2...
Reposted by Violeta Calleja
Today I will be giving a talk in the BioClub Tokio on synthetic ecosystems. Happy to share and discuss with this community again! You can follow on zoom if you are interested: bioclub.tokyo/en/events/sy...
October 21, 2025 at 2:33 AM
Today I will be giving a talk in the BioClub Tokio on synthetic ecosystems. Happy to share and discuss with this community again! You can follow on zoom if you are interested: bioclub.tokyo/en/events/sy...
Being a tutor is such a fulfilling experience! I highly recommend it 👇👇👇
🥁 🥁 🥁 CALL FOR PROJECTS 🥁 🥁 🥁
We’re thrilled to announce that the call for tutors for Complexity72h 2026 in London is OPEN! 🚀
When & where: Northeastern University London · 22–26 June 2026
Big and bold idea? Submit your project at www.complexity72h.com/projects/ by Dec 22!
We’re thrilled to announce that the call for tutors for Complexity72h 2026 in London is OPEN! 🚀
When & where: Northeastern University London · 22–26 June 2026
Big and bold idea? Submit your project at www.complexity72h.com/projects/ by Dec 22!
two minions wearing goggles and overalls are waving their hands in the air .
ALT: two minions wearing goggles and overalls are waving their hands in the air .
media.tenor.com
October 17, 2025 at 6:20 PM
Being a tutor is such a fulfilling experience! I highly recommend it 👇👇👇
Reposted by Violeta Calleja
Continuamos con nuestros conferenciantes invitados!
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Carlos Gershenson, SUNY Binghamton
@cgershen.bsky.social
🗓️ 21-23 enero Sevilla 2026
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2026
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Carlos Gershenson, SUNY Binghamton
@cgershen.bsky.social
🗓️ 21-23 enero Sevilla 2026
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2026
October 15, 2025 at 2:52 PM
Continuamos con nuestros conferenciantes invitados!
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Carlos Gershenson, SUNY Binghamton
@cgershen.bsky.social
🗓️ 21-23 enero Sevilla 2026
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2026
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Carlos Gershenson, SUNY Binghamton
@cgershen.bsky.social
🗓️ 21-23 enero Sevilla 2026
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2026
Reposted by Violeta Calleja
Aprovecho para decir que estas ayudas son de las pocas maneras que tenemos los investigadores "jovenes" de dirigir proyectos aunque luego se nos vaya a penalizar en las evaluaciones por no haberlo hecho
#ProyectosAEET
Ya se ha resuelto la convocatoria 2025 de las ayudas a proyectos de investigación en Ecología @eco-aeet.bsky.social + @sibecol.bsky.social + Asociación Ibérica de Limnología
www.aeet.org/es/convocato...
Ya se ha resuelto la convocatoria 2025 de las ayudas a proyectos de investigación en Ecología @eco-aeet.bsky.social + @sibecol.bsky.social + Asociación Ibérica de Limnología
www.aeet.org/es/convocato...
October 16, 2025 at 9:54 AM
Aprovecho para decir que estas ayudas son de las pocas maneras que tenemos los investigadores "jovenes" de dirigir proyectos aunque luego se nos vaya a penalizar en las evaluaciones por no haberlo hecho
Reposted by Violeta Calleja
📢 Keynotes unlocked: 7/12. Thrilled to have Sandro Meloni @smelons.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #dynamics on #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
October 10, 2025 at 4:21 PM
📢 Keynotes unlocked: 7/12. Thrilled to have Sandro Meloni @smelons.bsky.social as a keynote speaker in Complenet’26! Join us to learn more about #dynamics on #networks!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
🌐 Info & registration: complenet.weeblysite.com
🚨 Call for contributions open – submit by Nov 15, 2025!
Reposted by Violeta Calleja
Really happy to see this out in PRX Life! There you can find an eco-evolutionary framework integrating the evolution of viral infectiousness and antigenic features. While the former determines contagion events among hosts, the latter tells us how quickly viruses can escape population immunity 1/4👇
October 3, 2025 at 8:03 AM
Really happy to see this out in PRX Life! There you can find an eco-evolutionary framework integrating the evolution of viral infectiousness and antigenic features. While the former determines contagion events among hosts, the latter tells us how quickly viruses can escape population immunity 1/4👇
Reposted by Violeta Calleja
Nos hace mucha ilusión anunciar a
David Soriano Paños, Universitat Rovira i Virgili
@sorianopanos.bsky.social
como conferenciante invitado. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2...
David Soriano Paños, Universitat Rovira i Virgili
@sorianopanos.bsky.social
como conferenciante invitado. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2...
October 8, 2025 at 12:57 PM
Nos hace mucha ilusión anunciar a
David Soriano Paños, Universitat Rovira i Virgili
@sorianopanos.bsky.social
como conferenciante invitado. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2...
David Soriano Paños, Universitat Rovira i Virgili
@sorianopanos.bsky.social
como conferenciante invitado. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2...