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21.04.26, 19:30, Norbert Peeters, ‘Invasieve’ exoten? Wie stopte de ‘invasie’ in invasie-ecologie

British biologist Charles Elton is often regarded as the founder of research into animals and plants that colonise new areas. His 1958 book The Ecology of Invasions by Animals and Plants is considered the official starting point for this field of study. However, naturalists had been observing life forms establishing themselves in unfamiliar environments long before that.

As early as the eighteenth century, the famous Swedish scholar Carolus Linnaeus observed that exotic plants sometimes spread on their own and take root in the wild. He was the first to map how these newcomers spread across the world. Humans in particular play a key role in this.

Unlike today, Linnaeus did not see these successful exotic species as a threat, but as an enrichment of the native nature. It was none other than Charles Darwin who was the first to label a successful exotic species as “invasive”.

During his voyage on the Beagle, he saw how a European garden plant was rapidly spreading across the pampas of South America, displacing typical pampas plants. Not long after, Europe was hit by its first real plant invasion: a seemingly innocent aquatic plant from North America captivated science, politics and the press.

In this lecture, botanical philosopher Norbert Peeters will talk more about this forgotten history of thinking about plants that establish themselves in new areas. He will base his talk on his recent doctoral research. After the lecture, Norbert Peeters will talk to Tim Adriaens, a landscape ecologist specialising in invasive species. Helen Weeres, Saïda Ragas and Malika Soudani will provide literary and cinematic interventions on the subject of being exotic.

  • Norbert Peeters is a botanical philosopher, writer and university teacher in Philosophy at Wageningen University & Research. Peeters studied Archaeology and Philosophy. At Leiden University, he is writing a dissertation on the conceptual history of invasion ecology, in which he writes about the earliest developments in thinking about invasive plants. As a botanical philosopher, he is interested in the extraordinary world of plants. Following Darwin's vision of the plant kingdom, Peeters argues for a different way of looking at and describing plants. In 2016, he made his debut with Botanical Revolution: The Plant Theory of Charles Darwin. He subsequently wrote Rumphius' Herbarium: Stories from the Ambonese Flora (2020) and Wilderness Varnish: A Philosopher in the Vondelpark (2021), among other works. In 2023, he co-edited the reissue of Flora Batava: the wild plants of the Netherlands.
  • Helen Weeres has a background in poetry, literary and cultural analysis, and gender studies, and works in the (research) arts alongside regenerative farmers, scientists, and other artists. Helen's practice is fuelled by poetry and a fascination with artefacts and instruments that inspire regenerative interactions between humans and a broader ecosystem. Themes such as human-inclusive ecosystems, lost (pagan) rituals and folklore, queer ecology, and human-soil relationships are often central to Helen's evocative poems, performances, installations, and (inter)active gatherings. Helen is co-organiser and coordinator of Queer miQ, an “open” stage that invites FLINTAQ* people to “queer” the microphone. In 2025-2026, Helen will develop new literary work outside the book in collaboration with TILT, made possible in part by the Dutch Foundation for Literature.
  • Saïda Ragas is an illustrator and comic strip artist. Her work is based on her idealistic, sex-positive and feminist ideas. Through playful and colourful images, she shares personal experiences, social footnotes and dream images. In 2024, Saïda was a finalist in the annual illustration competition De Stoute Stift (The Naughty Pencil) organised by deBuren. Together with Kato Kagenaar, Saïda is part of the sex-positive art collective HALFNAAKT.
  • Malika Soudani is an author and teacher of creative writing in primary and secondary education in the Netherlands. In 2021, she graduated in Creative Writing at ArtEZ Arnhem with the poetry collection Waar ik een slaapkamer heb gehad (Where I had a bedroom). She did an internship at production house SLAA and worked as a PR assistant for Read My World. In the summer of 2019, Malika took part in deBuren's annual writing residency in Paris.
  • Malika organises writing workshops and courses on themes such as spirituality, sexuality and (solo) intimacy. She recites her work at various venues and enjoys participating in panel discussions on social issues. In the summer, she is one of the writing workshop staff at Buitenkunst, where she also works as a cook.
  • Tim Adriaens started as a landscape ecologist at the Institute for Nature Conservation in 2000, working on area visions and ecological networks. He then started a project on invasive species at the institute. He coordinates research on invasive species and is very active in international projects on sustainable control, setting up surveillance and warning systems, citizen science, horizon scanning and risk analysis, impact research and human dimensions research of biological invasions. He has many international projects in his portfolio, such as LIFE, Interreg and Horizon projects, as well as assignments for the European Commission and the IUCN. Tim has been part of the INBO management team since 2024. He is responsible for the Species Diversity, Open Science Lab for Biodiversity, Wildlife Management and Invasive Species teams. Tim is very active in the public debate on invasive species and their management. He often comments in the media on invasive species such as raccoons, Asian hornets, African clawed frogs and plant invasions, and their impact on nature conservation and management.

This lecture will take place in the Botanical Garden of the GUM. More information about the accessibility of the venue can be found on their website. A sign language interpreter will be provided for this lecture. If you have any further questions about accessibility facilities, please contact the organisation: anais.vanertvelde@hogent.be. Questions can be asked at the reception desk on site.


free for students and staff of HOGENT, Howest, Ghent University, and KASK & Conservatorium
Plantentuin GUM
Ledeganckstraat 35
9000 Gent