Lucas Medeiros

📢 We're seeking a postdoc to work on a project funded by HFSP @hfspo.bsky.social at the intersection of bacterial physiology, ecology and evolution. You can find more details about the project, the position, and how to apply here www.dalbellolab.com/hfsp-project! #bacteria #ecosky #MevoSky #microSky

Very nice commentary on our recent @pnas.org paper that came out yesterday!

www.pnas.org/doi/10.1073/...

This work resulted from a fantastic team effort and I owe many thanks to my collaborators, especially to Darian Sorenson and Steve Munch who did a lot of the heavy lifting.

A data-driven model to help avoid ecosystem collapse New study gives conservationists a simpler, general approach for predicting an ecosystem’s tipping point and what comes next

For a layperson summary of this work, check out this awesome @ucsantacruz.bsky.social press release by @collinblinder.bsky.social:
news.ucsc.edu/2025/06/ecos...

Super excited to share our new study, where we introduce and apply a data-driven modeling approach to predict dynamical regimes of ecosystems at unseen environmental conditions (e.g. beyond a tipping point):
www.pnas.org/doi/abs/10.1...

Awesome postdoc opportunity

Simons Graduate Fellowships in Ecology and Evolution The purpose of these awards is to provide support for students entering U.S.-based Ph.D. programs with a plan to perform research in ecology and evolution. While we will consider all projects in ecolo...

Get the word out far and wide. New opportunity from the Simons Foundation in the Eco-Evo space.

2026 Simons Graduate Fellowship in Ecology and Evolution Awards, due July 31, 2025, only for incoming PhD students who plan to start their PhDs in Fall 2026.

www.simonsfoundation.org/grant/simons...

PhD student in Ecology (up to 4 years) The position is funded by the Swiss National Science Foundation project “A mechanistic theory of functional responses: zooming into movement behaviour to understand and predict predator prey interacti...

Are you interested in predator-prey interactions and movement ecology?

I am looking for a PhD student to work on the project "A mechanistic theory of functional responses: zooming into movement behaviour to understand and predict predator-prey interactions"
euraxess.ec.europa.eu/jobs/342402.

It was fun to work on this project with Mike, Heidi, and Steve and I thank them for the great guidance and collaboration! 7/7

By relying only on a sequence of Jacobian matrices, these metrics can be computed from empirical data if we can accurately infer these matrices. Thus, our work creates new opportunities to analyze communities that are far from equilibrium using approaches such as Empirical Dynamic Modeling. 6/7

A key insight is that perturbation amplification depends on community state in the short term, but not in the long term. For example, for seasonal population cycles, the outcome after a few weeks would depend on when the disturbance occurred but the outcome after an entire year would not. 5/7

We performed several simulations to show that the metrics capture the entire range of perturbation amplification for different types of nonequilibrium dynamics (forced cycle, limit cycle, nonstationary cycle, and chaotic dynamics). The metrics work for both discrete- or continuous-time dynamics. 4/7

We followed a similar approach to derive analytical metrics of how perturbations amplify over time under nonequilibrium population dynamics. The metrics quantify the minimum, typical, and maximum amplification of a distribution of perturbations for any time scale (short or long term response). 3/7

Decades of research in ecology have led to a solid theory for responses to pulse perturbations for stable fixed points. In an important paper, Arnoldi et al (2018, JTB) have unified several metrics (e.g. resilience, reactivity) under a common framework. 2/7

How do ecological communities respond to pulse perturbations (e.g. storms, wildfires)? We have a solid theory for stable fixed points, but what about cycles, transients, or chaos? In this preprint, we introduce a unified framework for these nonequilibrium cases. 1/7
www.biorxiv.org/content/10.1...

We offer a 5-year research position in the #PlanktonEcology lab in Wilhelmshaven. Are you interested in empirically testing ecological concepts? We offer a stimulating scientific environment, experimental facilities & support to establish an independent research profile
uol.de/en/job/postd...

Rising Temperatures Are Scrambling the Base of the Ocean Food Web (Gift Article) Scientists are gaining new insights into how plankton supports life on Earth — just as climate change is changing everything.

Rising Temperatures Are Scrambling the Base of the Ocean Food Web.
Scientists are gaining new insights into how plankton supports life on Earth — just as climate change is changing everything.

🧑🏽‍🔬Hey #undergrad juniors and seniors! Seeking paid, hands-on experience in #marinescience + #engineering? Spend the #summer doing research with a WHOI #SummerStudentFellowship!

📲 Applications are due Feb. 5 - get the details: go.whoi.edu/ssf-program

Started a Theoretical Ecology starter pack. For from complete. Respond if you want to be added or removed.

go.bsky.app/PwpvZLb

I am looking for a PhD student to start in fall of 2025 at MSU. Potential topics include trait-based approaches to plankton community resilience, temperature effects on communities, harmful algal blooms and many others. Please get in touch if interested. More info: www.kl-lab.group.

Like ‘old Twitter’: The scientific community finds a new home on Bluesky After recent changes to Elon Musk’s X, a gradual migration turns into a stampede

www.science.org/content/arti...

Pretty excited to be joining Bluesky to interact with the scientific community here! Bye Twitter!

I tried to build a starter pack for researchers in ecology sensu lato. Who am I missing? go.bsky.app/2MdGeqi I can add more people and spread it around.

Sky Follower Bridge - Chrome Web Store Instantly find and follow the same users from your Twitter follows on Bluesky.

For those moving from X/Twitter, I just used this excellent tool to transfer 1000+ Followings in 5 min. chromewebstore.google.com/detail/sky-f...