I am a thermal ecologist, and have been investigated the seasonal ecology of a fruit fly pest during my PhD thesis. My work was integrated into a collaborative network with the common goal to design a reliable population dynamic model, where I aimed to provide the preliminary data, necessary to build up the model. More recently, I extended my skills to other insect taxa as I am currently working on the impact of heatwaves on male’s reproductive traits in multiple butterfly and bee species. Here I discovered a hidden passion for bees, a curious and fantastic insect taxa, that I wish to explore in more details. Despite Portuguese origins, my interest greatly focuses on cold ecophysiology (even if I stay open to hot, of course), thermal adaptive responses and population dynamic modelling and the mating system and thermal ecology of bees. My work is driven by a desire to understand how ectothermic organisms—whether vulnerable or invasive—can adapt in the context of climate change. I am always happy to share ideas, discuss about temperatures and collaborate, so please don’t hesitate to contact me.

Current Position

Since 2025: Postdoc position in Prof. Dr. Claudia Fricke’s lab, animal ecology group, Martin-Luther-Universität Halle-Wittenberg.

Main project: “Thermal effects on male reproduction and their relevance for predicting population and distributional responses to heat wave” with a focus on fertility potential of laboratory and field bees, butterflies and locusts.

Research interests

• Ecology and physiology of cold
• Metabolomics
• Phenological and spatial modelling
• Bee’s thermal ecology

My publications before iDiv

Raynaud-Berton, B., Deconninck, G., Boulembert, M., Chabrerie, O., Couty, A. … & Colinet, H. (2026). A roadmap to key traits of invasive Drosophilidae. Biological reviews. In press.

Colinet, H., Lehnhoff, C. & Raynaud-Berton, B. (2025). The critical impact of sub- and supra-optimal temperatures on male fertility potential of an invasive fruit fly. Ecology and Evolution. doi.org/10.1002/ece3.71515

Raynaud-Berton, B., Gibert, P. & Colinet, H. (2025). How does ageing affect life history traits and cold tolerance in summer- versus winter-acclimated fruit flies? Ecological entomology. doi.org/10.1111/een.13437

Raynaud-Berton, B., Gibert, P., Suppo, C., Pincebourde, S. & Colinet, H. (2024). Modelling thermal reaction norms for development and viability in Drosophila suzukii under constant, fluctuating and field conditions. Journal of Thermal Biology 123, 103891. doi.org/10.1016/j.jtherbio.2024.103891

Education

2021 – 2024: PhD in ecology and evolution entitled “Phenotypic and ecophysiological consequences of short-term to long-term thermal variations on the seasonal ecology of Drosophila suzukii” supervised by Prof. Dr. Hervé COLINET and Prof. Dr. Patricia GIBERT, University of Rennes, France

2019 – 2021: Master of science with a focus on insect evolutionary and behavioral ecology, University of Tours, France

Master 2 thesis: “Influence of urban heat islands on the thermal biology of field collected fire bugs (Pyrrhocoris apterus)” supervised by Prof. Dr. Sylvain PINCEBOURDE, University of Tours, France

Master 1 thesis: “The ability of repellents to effectively repel insect disease vectors: a review” supervised by Prof. Dr. Claudio LAZZARI, University of Tours, France

2016 – 2019: Bachelor of science with a focus on biology of marine systems, University of La Rochelle, France

Bachelor’s thesis: “Heavy metal contamination of mangrove mollusks (Spondylus squamosus) from Florès Island, Indonesia as biomarkers: a meta-analysis for risk assessment in human health” supervised by Prof. Dr. Gilles RADENAC, University of La Rochelle, France