Insights from the Global Ecological Modelling Conference (ISEM 2025), Japan
Why Ecological Modelling Conferences Matter
We operate within a strict regulatory framework — from OECD test guidelines to EFSA guidance documents — that shape how our studies, models, and risk assessments are developed and evaluated.
These frameworks blend fundamental science, practical implementation, and the precautionary principle, ensuring scientific rigour and regulatory confidence.
But science never stands still. New knowledge continually emerges, opening up opportunities to refine our understanding and improve how we model ecological systems. That’s why events like the International Society of Ecological Modelling (ISEM) Global Ecological Modelling Conference are so valuable.
Conference Overview: ISEM 2025 in Kashiwa, Japan
Having previously published and reviewed for the Journal of Ecological Modelling, I was keen to attend this biennial event to explore developments beyond my usual focus on modelling population responses to chemical exposure.
The ISEM Global Ecological Modelling Conference did not disappoint. It brought together scientists from across the world — all passionate about using models to better understand the complexity of ecological systems.
Highlights from the Ecological Modelling Conference 2025
1. Dynamic Energy Budget (DEB) Theory
The DEB workshop and sessions were among the standout moments. DEB theory, featured in the EFSA (2018) TKTD opinion, was once considered not yet ready for regulatory application (for example, when assessing sub-lethal effects on organisms).
However, it’s clear that this will change soon. Spending a full day in a practical DEB modelling workshop — exploring its implementation in Python and optimisation techniques for parameterisation — offered valuable insight into the future potential of this approach.
2. Bioacoustics and AI in Ecological Research
Another inspiring theme was the integration of bioacoustics and large language models (LLMs) in ecological studies. Presentations showcased how acoustic data can inform animal welfare, such as monitoring vocalisations in hens, and how it can enhance biodiversity monitoring in birds and other species.
Some talks even explored using acoustic data to estimate population abundance — a bold idea that, if feasible, could open up new opportunities for model validation. The creativity and interdisciplinarity of these approaches were a real highlight.
3. Mechanistic Modelling Across Disciplines
Mechanistic modelling featured heavily throughout the conference — from hydrological modelling to individual-based animal behaviour models. It was refreshing to be in an environment where deep understanding of ecological systems took precedence. There was always something new to learn and discuss.
Beyond the conference
Travelling to Japan was no small effort — my first long-haul trip in six years — and the jetlag was certainly a test! But it was absolutely worth it. Kashiwa and the wider Tokyo region offered a fascinating blend of tradition and modernity, from serene temples to breathtaking views of Mount Fuji, delicious food, and a welcoming atmosphere.
Looking Ahead: The Next ISEM Conference
I’m thrilled that the ISEM Global Ecological Modelling Conference will return to Europe in two years’ time. No official announcement has been made yet, but — whisper it quietly — it might even be in the UK.
If so, it would be wonderful to welcome international colleagues to our part of the world and continue these important discussions closer to home.