Interview with a social insect scientist: Mariane Ronque

IS: Who are you and what do you do?

My name is Mariane Ronque and I recently finished my PhD. in Ecology at the University of Campinas (Brazil). Using a multidisciplinary approach, I investigated the natural history, behaviour, and associated bacterial community of five species of fungus-farming ants from the Atlantic rainforest, with a special interest in non-leafcutters: Mycocepurus smithii, Mycetarotes parallelus, Mycetophylax morschi, Sericomyrmex parvulus and Sericomyrmex saussurei.


(left) Nest of Mycetophylax morschi in Atlantic rainforest; (right) Fungus garden of Sericomyrmex parallelus.

IS: How did you develop an interest in your research?

I always had an interest in behavioural ecology and species interactions, beginning in my undergraduate studies. Ants became my interest because I wanted to study behavioural ecology and species interaction in a masters course, so I started to read a lot about these themes during my undergrad. When I was reading research about ant social organisation, how they participate in interactions with other arthropods and plants and acting on the dispersion of seeds, I became fascinated and recognised that they would be good models to study behavioural ecology and species interactions.

IS: What is your favourite social insect and why?

Ants, probably this answer is biased because I study ants! But I think ants are a good model to study social behaviour and ecological interactions. In addition, the variety of behaviours, ways of life and abundance in terrestrial environments fascinate me.

IS: What is the best moment/discovery in your research so far? What made it so memorable?

In my PhD when I observed in the field the behavior of cleptobiosis in fungus-farming ants (see the video below). It was very cool to watch Mycetarotes parallelus steal faeces pellets (probably to cultivate the symbiont fungus) from Mycetophylax morschi. I got very excited when I realized that probably this was the first record of cleptobiosis in fungus-farming ants. I reported this behavior in a recent paper at Insectes SociauxThievery in rainforest fungus-growing ants: interspecific assault on culturing material at nest entrance, (Ronque M.U.V., Migliorini G.H., Oliveira P.S., 2018).

IS: What do you think are some of the important current questions in social insect research and what’s important for future research?

A question that I am currently interested in is how the associated microorganisms (microbiota) shapes the social behavior in ants. There has been an increase in the interest in the microbiome associated with animals since microorganisms are very abundant and some can affect animal ecology, evolution, and behavior. There is research showing that microorganisms can shape some social behaviors in meerkats, chimpanzees, hyenas. I would like to see this area of research expanding in ants since they are social animals that live in colonies and microorganisms could have key functions in the ant’s societies.

IS: Outside of science, what are your favourite activities, hobbies or sports?

I like to cook, travel, be with my family and my partner.

IS: How do you keep going when things get tough?

I try to stop a while and give myself a time to relax. Talking to my partner and parents also help me to see the situation more clearly and think strategically to solve the problem.

IS: If you were to go live on an uninhabited island and could only bring three things, what would you bring? Why?

This is a difficult question! Based on what I see in survival TV shows, I think it would take a fishing net, a knife, and a pot to boil water. Cannot it be 4 things? Because I would also need someone to share the experience, so I would bring my partner that is an ecologist with expertise in the field and would help me to survive on this island.


Me and my partner collecting nests of fungus-farming ants (Brazilian Cerrado).

IS: Who do you think has had the greatest influence on your science career?

My graduate advisor Dr. Paulo S. Oliveira. It was in his laboratory and under his supervision that I started studying ants during my master course. He showed me the importance of natural history studies to understand the ecological role of the organism in the environment in which it lives, as well as being the first step in formulating more detailed questions about a species and the interactions in which it participates. I also cannot fail to mention my parents, who always encouraged me to continue in my science career.


Me and my advisor Dr. Paulo S. Oliveira during poster presentation at IUSSI 2018 – Guarujá.

IS: What advice would you give to a young person hoping to be a social insect researcher in the future?

Be passionate about your research and scientific career. Be kind to yourself, sometimes things do not go as expected and we should not charge ourselves so much. Try to know the maximum of the organism or the system you study (as field and lab observations), this will allow more in-depth questions. Also, I think it is very important to learn new technologies (especially molecular tools), experimental design and statistic.

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