I gave a talk at the fantastic ISBE Conference in New York this year, entitled Effects of heterogeneity on collective behaviour. My presentation focused on the role of the boldness and sociability personality traits on the collective movements, coordination, and leadership in pairs and small groups of three-spined sticklebacks. A pdf of the talk can be found here (link removed).
Author: Jolle Jolles
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Just another (cold, 12 hour) day in the lab

Often I wear a thick winter coat when working in my lab but today I forgot it.. Just on a day when I have to spent 12 hours in the lab.. Although most people will probably be enjoying another warm and sunny summer day (unless you live in Britain), I will be in my underground fish lab for 12 consecutive hours. It is about 11 degrees Celsius down here to keep the water housing the hundreds of sticklebacks nice and cool so they won’t get into breeding state and show the associated changes in territorial/mating behaviour. I am however feeling a bit chilly as well as I forgot my coat today.. By typing this I hope at least my hands and fingers will warm-up a bit.
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Start of a new scientific youtube channel
I have recently started a youtube channel (here) to showcase my research projects and interests. As a scientist I believe it is important (and fun!) to engage with the public and make your work understandable to scientists and non-scientists alike. Not only because most science is ultimately payed by the tax payer, but also because one of the main goals of science is to learn more about our world and share this knowledge.
Next to publishing papers it is important to make these papers understandable so that this new knowledge can be appreciated and potentially be used by the general public. The aim with a new youtube channel is to show videos of different aspects of my experiments and projects but also of interesting aspects of social life of both human and non-human animals that reflect my research interests.
Today I would like to share a short video from a recent experiment that shows the successful tracking of five three-spined stickleback fish to investigate the role of animal personality on leadership and group movements.
By tracking the fish we can accurately (mm scale) determine each fish average position in the tank and calculate individual characteristics as well as social parameters for the group, such as group cohesion and leadership. In this particular situation fish 2 was the leader of the group. -

“What’s your personality” song!
I am always looking for possibilities to combine my research interests with music, art or design. Luckily a couple months ago my two friends Jens Bouttery and Daan Milius, professional musician/composer and film makers, asked me to collaborate on a musical performance to explore the boundaries of music, science and art called “Triggers and Tresholds“.
We have had a couple very fruitful weekends in Cambridge during which we some great discussions about science and music and they filmed a couple shorts for the performance later this year. After their last visit here and seeing the sticklebacks and my research in my basement lab in Cambridge, Jens got very creative and within a day wrote a fantastic song about my research on animal personality! Listen to it below:
[soundcloud url=”https://api.soundcloud.com/tracks/144892230″ params=”auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&visual=true” width=”100%” height=”250″ iframe=”true” /]
It is great to work together with good friends and see how my research is translated in such a creative way!
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Animal personality and its role in collective behaviour
Everyone knows that our personality plays a large role in daily life, from our need for adventure and our desire to hang out with friends, to our discipline in work and our compassion with others. But when we talk about personalities in animals, or non-human animals as I like to say, many may feel it is different. Although most people use personality related terms when talking about our pets, the majority of people may still believe personality is a uniquely human characteristic. The interesting thing is, personalities exist throughout the animal kingdom!
Until about ten years ago researchers talked about the behaviour of animals in general terms, ignoring the behavioural variation between individuals because it was considered ‘noise around the mean’. However, during the last ten years, more and more researches have shown that personalities exist in a wide range of species. From birds to bees, all species so far investigated show that individuals often behave very different from one another and do so consistently throughout their lives in a similar way like we do ourselves. For example, some individuals might be bolder or more aggressive while others are more sociable and tend to follow others.
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Start of a scientific blog
This is the first blog post on my academic website JolleJolles.com. Although I have already been running my own nature and science blog Mudfooted.com for the past four years, I felt a need for a more personal view on science and the academic world and really like to increase the engage more with the public about my own research!
This blog will present my personal view of interesting new findings from the behavioural ecology literature and beyond, additional information, photos and videos about my own research, and my personal opinions and experiences of academia. If you like to be amazed by our wonderful natural world and read about the most recent fascinating scientific discoveries, please go and visit my other blog Mudfooted.com!
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Invited talk at ENP meeting, Lunteren
I was invited to give a talk about my work on animal personality and social behaviour on three-spined sticklebacks at the yearly ENP meeting in Lunteren, the Netherlands: Sociality and the role of personality in sticklebacks: relevant insights from a behavioural ecological perspective
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Talk at the Ecology & Behaviour Conference, Montpellier
Today I presented research I have recently conducted on sticklebacks to investigate the link between animal personality and leadership at the Ecology & Behaviour Conference in Montpellier: Leadership and collective behaviour in sticklebacks
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Organised the Clareity Research Symposium, Cambridge
This year I organised the “Clareity research Symposium”! It was a splendid day with a great variety of talks, ranging from conservation and quantum physics, politics and art, to history and medicine with a plenary by Professor Nicky Clayton. Read more about it here.
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New paper on species recognition in jackdaws
With colleagues from the wildcognition group at Madingley, University of Cambridge, we published a new paper that shows that jackdaw nestlings can discriminate between conspecific calls but do not beg specifically to their parents. Download the paper in Behavioral Ecology here.
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Talk at Departmental Seminar series, Cambridge
Today I gave a departmental talk about my PhD research entitled Individual differences, heterogeneity, and social decision-making.
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Talk at the IEC Behaviour Conference, Newcastle
I gave a talk at the international Behaviour Conference in Newcastle this year, entitled Role of previous social experience on leader and follower behaviour in sticklebacks
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New paper on dominance and boldness determining social foraging in rooks
My latest paper Dominance, pair bonds and boldness determine social foraging tactics in rooks (Corvus frugilegus) is out now in the journal Animal Behaviour! Download the pdf here.
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Prize for Best question, ASAB Conference Lincoln
This year at the annual ASAB Easter Conference I won the prize for “Best question”
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Poster at ASAB Conference, Lincoln
I presented a poster at the ASAB Conference “Heterogeneous structure in mixed-species corvid flocks in flight“, held at the University of Lincoln.
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Talk at the Clare Research Symposium, Cambridge
I gave a talk at the Clare Research Symposium: Social factors and animal personality affect social foraging tactics in rooks, at Clare College, Cambridge
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Elected Graduate Research Officer
I got elected as Graduate Research Officer of the Clare College Graduate Committee (MCR) for the year 2013-2014
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New paper on heterogeneity in corvid flocks
Our new paper “Heterogeneous structure in mixed-species corvid flocks in flight” is now out in Animal Behaviour! Download the pdf here.

