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Today, our planet is undergoing major climatic changes. Particularly in the face of rising temperatures, it is not easy to predict how flora and fauna will react and adapt in disturbed ecosystems. International research, in which Professor Johan Yans' team (Department of Geology and ILEE Institute) is taking part, has found some answers in fossils, which have been the memory of Darwinian evolution for millions of years. Explanations.

At a time when misinformation, post-truths and conspiracies are undermining confidence in science, UNamur welcomes SPiN (Science & Philosophy in Namur), a new interdisciplinary research center that questions the place of science in society. Founded last September by Olivier Sartenaer, Professor of Philosophy of Science at UNamur, SPiN brings together philosophers and scientists around a common vision: to develop a critical and accessible reflection on science in all its diversity..

As part of its seminar, Centre Arcadie will be pleased to welcome Igor Krtolica for a session devoted to his book Romain Gary. De l'humanisme à l'écologie, Gallimard, 2025.Maître de conférences en philosophie à l'Université de Picardie Jules-Verne, junior member of the Institut universitaire de France, Igor Krtolica is the author (in addition to the work to be discussed) of Gilles Deleuze (PUF, coll. "Que sais-je? ", 2015), of Gilles Deleuze et Félix Guattari : Une philosophie des devenirs-révolutionnaires(Éditions Amsterdam, 2024) and of a commentary on an extract from Romain Gary's Les Racines du ciel entitled Antifascism, humanism and ecology (PUF, coll. "Classiques de l'écologie", 2025).After a presentation of the work, Igor Krtolica will be interviewed by Jean-Baptiste Vuillerod and Thibault De Meyer.Free admission. All welcome.Book presentation 1956: the Prix Goncourt is awarded to Racines du ciel, a novel whose hero, Morel, fights against the extermination of elephants in an Africa struggling for independence. Romain Gary described it as the first ecological novel. Ecology enabled him to resolve the unbearable political contradiction in which the post-war West finds itself: the impossibility of believing in man, the impossibility of giving up believing in man. How can we continue to give meaning to the idea of civilization? If we are to maintain the humanist ideal, we need to wage a battle in which man is no longer at the center. Such is the paradox explored here. This literary and philosophical essay reveals the complexity of Romain Gary's thought, his constant irony and humor, his contradictions, his rejection of dogmatism. And its modernity: ahead of his time, the novelist anticipated the controversies driving contemporary ecological thinking, where the human being is only a part of nature, but where nature itself becomes inseparable from history, society and politics. This previously unpublished synthesis of Romain Gary's work is an original analysis of the tension between humanist commitment and ecological cause.. Toutes les activités du Centre Arcadie

As part of its seminar, Centre Arcadie will be pleased to welcome Jeanne Etelain for a session devoted to her book Zones. Terre, sexes et science-fiction, Flammarion, 2025.Jeanne Etelain, PhD from New York University and Université Paris-Nanterre, teaches philosophy and contemporary theory at the École supérieure des Beaux-Arts de Montpellier.After a presentation of the book, Igor Krtolica will be interviewed by Jean-Baptiste Vuillerod and Thibault De Meyer.After a presentation of the book, Jeanne Etelain will be interviewed by Ludovic Dubois, Nathalie Grandjean and Sébastien Laoureux.Free admission. Welcome to all.Book presentation Zone: this ubiquitous term nevertheless remains elusive. In a stunning conceptual investigation at the crossroads of geography, psychoanalysis and science fiction, Jeanne Etelain explores how "zone" has become central to understanding space, in the contemporary context of a crisis in the planet's conditions of habitability. The zone thus emerges as a spatial modality that defies habitual categories, confronting us with space's power to act, whether it's nature, the Earth or the body. All Centre Arcadie activities

Conference organized by Centre Arcadie and the Department of Philosophy as part of the "Philosophie du cinéma" course and the "Cultures et pensées cinématographiques" Specialization Master's degree.Dork Zabunyan is Professor of Film Studies at Université Paris 8 Vincennes-Saint-Denis. His publications include Les Cinémas de Gilles Deleuze (Bayard, 2011), L'Insistance des luttes - Images, soulèvements, contre-révolutions (De l'incidence éditeur, 2016), Foucault va au cinéma (Bayard, 2011) with Patrice Maniglier, Jacques Rancière et le monde des images(Mimesis, 2023).In 2020 he published Fictions of Trump. Puissances des images et exercices du pouvoir(Le point du jour). In this conference, the aim will be to take up this work in the context of Trump's second term.Presentation of the workDonald Trump's body is almost everywhere, outside us, on our screens, caught up in information channels that disseminate still and moving images of him. He is also present within us, more or less floating, in the minds of his detractors and supporters alike. The 45th President of the United States of America is not, however, the book's only subject. Based on his countless audiovisual representations, both before and after his election, the aim here is to explore the function of images in the exercise of power today, the stories they tell and the discourses they condition. Two questions run through this essay: what is this strange love of power, conveyed by images of an authoritarian leader, to which individuals who have no interest in voting for him adhere? What filmic counter-fires, real or imagined, are likely to mobilize the powers of images to evade this power, or even to thwart it? All Centre Arcadie activities

It's official: the University of Namur joins the Réseau d'Échanges et de Liaisons entre Institutions d'Enseignement Supérieur Francophones (RELIEF). It thus becomes the fourth partner in this network, alongside the Université du Québec à Trois-Rivières (UQTR), the Université Savoie Mont Blanc and the Haute École Spécialisée de Suisse Occidentale (HES-SO).

JuryProf. Eli THORÉ (UNamur), PresidentProf. Patrick KESTEMONT (UNamur), SecretaryProf. Ranjàna RANDRIANARIVO (Université d'Antananarivo)Dr. Valérie CORNET (UNamur)Dr. Omayma MISSAWI (UNamur)Prof. Catherine MOUNEYRAC (Université Catholique de l'Ouest)Prof. Gauthier EPPE (ULiège)SummaryThe widespread production and use of plastics have led to their continuous release into the environment. Microplastics (MPs) are now ubiquitous in aquatic ecosystems, where their bioavailability to organisms and potential entry into the food web raise serious environmental and public health concerns. Substantial progress has been made in understanding MP toxicity, and their hazardous potential is now widely acknowledged. However, MP toxicity studies remain complex, as multiple particle characteristics, such as size, shape, polymer type, and sorbed contaminants might influence both bioavailabilityTo bridge this gap, the present thesis adopted a dual, complementary approach: (i) characterizing the environmental occurrence and bioavailability of MPs, and (ii) assessing the ecological relevance of using environmentally derived MPs in in vivo toxicity experiments.Overall, this thesis provides insights into the reproductive and transgenerational effects of environmentally relevant MPs while underscoring the importance of considering particle-pollutant interactions. By combining in situ field data with in vivo laboratory experiments, it demonstrates that the use of environmentally derived MPs represents a more realistic and ecologically meaningful approach to hazard characterization. Further studies should be carried out in this same perspective to generate robust, exploitable data and contribute to establishing a comprehensive MP risk characterization.

South America is a subcontinent rich in natural and cultural resources. Between biodiversity preservation and development cooperation, UNamur maintains valuable partnerships to address the challenges of biodiversity loss and understand current socio-economic transformations. Immersion in Ecuador and Peru. 

JuryProf. Nicolas DENDONCKER (UNamur), PresidentProf. Sabine HENRY (UNamur), SecretaryDr. Sébastien DUJARDIN (UNamur)Prof. Pierre OZER (ULiège)Prof. Emmanuel TWARABAMENYE (University of Rwanda)Prof. Caroline MICHELLIER (MRAC and UCLouvain)AbstractThis research investigates community vulnerability to landslides and floods in Northwestern Rwanda, hazards that frequently interact to produce compound disasters. The research focused on understanding the institutional, social, and structural factors that shape vulnerability and adaptive capacity in this disaster-prone region. Using a mixed-methods approach at local-scale, including institutional analysis, household surveys (n = 904), and field observations, the research highlights how vulnerability is shaped by socio-economic conditions, weak institutional coordination, and limited adaptive capacity. A Contextualized Vulnerability Index (CoVI) was developed to map vulnerability patterns, revealing particularly high vulnerability in landslide-prone and dual-hazard zones. The analysis of adaptive capacity showed that while awareness of hazards is high due to lived experiences, financial constraints, and limited technical knowledge hinder communities' ability to adapt effectively. The study contributes to the literature on social vulnerability and disaster risk reduction by emphasizing the importance of locally grounded, evidence-based strategies to strengthen community resilience in hazard-prone regions.

JuryProf. Nicolas DENDONCKER (UNamur), ChairProf. Sabine HENRY (UNamur), SecretaryProf. Frédéric SILVESTRE (UNamur)Dr. Sébastien DUJARDIN (UNamur)Prof. Kara PELLOWE (Stockholm University)Prof. Romain GLELE KAKAI (University of Abomey Calavi)Prof. Patrick KESTEMONT (UNamur)Prof. Eli THORE (UNamur)AbstractMangroves play an important role in environmental conservation and livelihood provision yet remain one of the most threatened ecosystems on earth. This doctoral study assesses pathways to enhance coastal sustainability in the Anthropocene, by promoting the sustainable use of mangroves and strengthening their social-ecological resilience through an interdisciplinary approach. The thesis is structured into four specific objectives: assessing the role of traditional beliefs and local deities in promoting the sustainable use of mangroves, analyzing the synergies between legal frameworks and traditional beliefs in enhancing the social-ecological resilience of mangroves, developing a novel interdisciplinary framework to evaluate the social-ecological resilience of mangroves, and operationalizing the proposed framework in Benin's mangroves, West Africa.  We collected field data using ethnobiological surveys, drone image analysis and document review, in-depth interviews, focus group discussions, plant and fish inventories across three coastal communities in Benin. The study draws insights from the seven principles of resilience to analyze mangrove sustainability. The interdisciplinary methodology of this study links plant biology, fisheries sciences, and human geography to analyze mangroves as complex social-ecological systems. Findings of the thesis show that traditional beliefs and local deities play a significant role in regulating the use of mangrove resources, while the overlapping of formal and informal institutions offer opportunities to enhance their social-ecological resilience. The novel proposed framework called Mangrove Social Ecological Resilience Appraisal (MaSERA) outlines variables and indicators tailored to mangroves to assess their social-ecological resilience. Its application in Benin highlights its potential in identifying factors that enable or erode mangrove resilience, for informed decision making. The study argues that promoting the sustainable use of mangroves and enhancing their social-ecological resilience represent dual imperatives for achieving coastal sustainability in the Anthropocene. It contributes to the growing body of knowledge on mangrove conservation and provides actionable insights for integrated coastal zone management.

Brendan Reid has just joined the Environmental and Evolutionary Biology Research Unit (URBE) team in the Department of Biology, Faculty of Science. This unit functions as a collaborative ecosystem, bringing together skills and expertise to advance research on organisms and their dynamic interactions with the environment. Dive into aquatic and semi-aquatic research!

For its inaugural conference, the SPiN (Science & Philosophy in Namur) center will be joined by Claire Rommelaere, a lawyer and researcher at the Center for Bioethics at the University of Namur, and Aude Bandini, a philosopher of science at the University of Montreal, to take a critical look at the theme of "distrust of science." The urgency of addressing this issue is clear in our era, where, despite an overall stable level of trust in science, the parameters of public debate are frequently blurred by misinformation.Having had the opportunity to observe philosophers of science in their natural habitat for nearly fifteen years, Claire Rommelaere will share her thoughts on whether or not we should trust those who think about science.For her part, Aude Bandini will address a major problem that we all face at a time when the mass of available knowledge is such that it is impossible to acquire it on our own. Indeed, the socially distributed nature of knowledge generally leaves us no choice but to rely on the authority of experts, even on very important issues (such as health). However, when we rely on others in this way and follow recommendations that, due to our ignorance, we have no means of evaluating, we place ourselves in a relationship of "epistemic dependence" that conflicts with our aspirations for intellectual autonomy and forces us to ask ourselves a question whose answer may prove unbearable: is intellectual autonomy nothing more than a myth?Conference hosted by journalist Maïté Warland.Program:5:30-6:30 p.m. | Drinks at Quai 22 (Rue du Séminaire 22, 5000 Namur)6:30 p.m. | Claire RommelaereDistrust of philosophers of science7:00 p.m. | Aude Bandini Intellectualautonomy in the face of scientific authority: a headache for social epistemologyRegistration deadline: April 16.Free of charge. Register