
Jolle Jolles
Senior Research Scientist, CEAB-CSIC
am a behavioural ecologist studying how individual differences in behaviour scale up to shape collective behaviour, social dynamics, and ecological processes, particularly under environmental change.
My research sits at the interface of behavioural ecology, experimental biology, and environmental science. I am particularly interested in consistent individual differences in behaviour and the role of individual heterogeneity in collective animal behaviour, social organisation, and ecological processes across scales.
I obtained my PhD from the University of Cambridge and subsequently held research positions in the UK, Germany, and Spain, including fellowships at the Max Planck Institute of Animal Behaviour, the Zukunftskolleg at the University of Konstanz, and CREAF in Barcelona. These experiences shaped my strongly interdisciplinary approach, combining theory-driven questions with carefully controlled experiments and long-term field research.


I currently lead the ABEClab (Animal Behaviour and Environmental Change) at the CSIC Centre for Advanced Studies of Blanes (CEAB-CSIC) in Catalunya, Spain. My group studies how animals respond to environmental change, with a particular focus on freshwater fish coping with drought in intermittent rivers and streams.
Our work combines controlled laboratory experiments with long-term field monitoring in Catalonia, supported by a dedicated experimental facility and well-characterised field sites. A central aim of the lab is to bridge individual-level behavioural mechanisms with population- and ecosystem-level consequences.


Alongside my empirical research, I develop and apply novel methodological and technological approaches for studying animal behaviour. I am particularly interested in low-cost, open electronics and automated monitoring systems that enable scalable, reproducible, and accessible behavioural research. This work includes the development of experimental infrastructure, behavioural tracking and analysis tools, and detailed methodological resources, as well as contributions through workshops, tutorials, and open documentation.
In addition to my research, I am actively involved in academic service and leadership. I currently serve as Editor for Animal Behaviour and as Head of Animal Welfare and Experimentation at CEAB-CSIC, and I am involved in institutional initiatives related to research ethics and integrity. Beyond research, I am a keen naturalist and love spending time outdoors, including rock climbing, trail running, sea swimming, and hiking.


