Seminars with external speakers will be once or twice a month. On other weeks, seminars are held by the internal AMGC researchers, students, and guests.
For more information or to propose speakers, please contact Axel Cerón González, Charlotte Van Riet, Oriana Chiappa, Vendula Smolikova or Maxwell Thiemens who are in charge of the seminar organisation.
PROGRAM 2025-2026
THURSDAY 22 January 2026, 4 PM CET, Room 10G
Prof. Dr. Gabriele Macho
Professor in Bioarchaeology at the Vrije Universiteit Brussel
Introducing PLIODIS: Pliocene Hominin Dispersal to southern Africa - Choice or Chance?
PLIODIS is an ERC Advanced Grant project that addresses a key question in human evolution: did early hominins disperse into temperate southern Africa during the Pliocene through active adaptive choice, or were they passively driven by tectonic and climatic forces? Although hominins evolved in tropical Africa around six million years ago, evidence for their presence in southern Africa by ~3.7 million years ago raises important questions about the timing and nature of early hominin adaptability. PLIODIS applies a multidisciplinary framework integrating palaeoclimatology, geomorphology, paleoecology, functional morphology, biomechanics, (zoo)archaeology, and evolutionary theory to reconstruct environmental dynamics and population processes during the Pliocene. Focusing on key Plio-Pleistocene sites in southern and eastern Africa, the project investigates whether early hominin populations were environmentally constrained, geographically isolated, or already capable of colonizing more variable temperate environments. By doing so, PLIODIS seeks to identify when the adaptive flexibility that later enabled Homo to disperse beyond Africa first emerged, potentially predating the origin of the genus Homo.
Prof. Dr. Gabriele Macho is a biological anthropologist whose research focuses on early hominin evolution, adaptation, and dispersal. Trained at the University of Vienna, she has held research and faculty positions at leading institutions across Australia, South Africa, the United Kingdom, and Spain, including the University of Western Australia, the University of the Witwatersrand, the University of Oxford, and University College London. She is the holder of an ERC Advanced Grant for the project PLIODIS and leads an international, interdisciplinary research team investigating Pliocene hominin dispersal into southern Africa. In September 2025, she joined AMGC, bringing extensive expertise in functional morphology, paleoecology, and evolutionary theory to questions that have shaped paleoanthropological debate for over a century.
THURSDAY 5 February 2026, 4 PM CET, Room 10G
Prof. Dr. Ronny Schönberg
Professor for Isotope Geochemistry at the University of Tübingen
The mode and timing of the appearance of early Earth's atmospheric oxygen
In this talk I will present an overview of important advances made by the international science community and my own research group regarding the oxidation of Earth’s atmosphere-hydrosphere system from the Mesoarchaean to the Paleoproterozoic. This process has not only ultimately influenced and shaped the development of life on our planet, but it also led to Earth’s first low-latitude glaciations in the Paleoproterozoic, some probably being similar in extent to the Sturtian and Marinoan Snowball Earth Events of the Neoproterozoic. The Paleoproterozoic glaciation events eventually led to a rebound with increased marine bio-productivity during the 2.2 Ga Lomagundi Event with proposed atmospheric oxygen levels similar to today. I will discuss the timing and mode of this early atmospheric oxidation and point out problems and questions that so far elude our understanding.
Ronny Schönberg is currently Professor for Isotope Geochemistry at the Department of Geosciences, University of Tübingen, Germany. In his early career he investigated the formation of layered intrusions and their economically important chromium and platinum reefs with Re-Os isotopes and helped to unravel the timing of Earth’s core formation using the short-lived Hf-W isotope systematics. With the introduction of commercially available plasma-source multicollector mass spectrometers to Science in the early 2000s Ronny Schönberg shifted his main research tool to “non-traditional” stable isotopes and up to today uses the combination of major and trace element systematics with transition-metal stable isotopes (e.g. Cr, Fe, Zn, Se, Mo and more) to investigate sources of various mantle reservoirs and melts, processes during crust-mantle interaction and redox-changes in the atmosphere-hydrosphere system throughout Earth’s history.
PREVIOUS SEMINARS
THURSDAY 9 October 2025, 4 PM CET, Room 10G
Dr. Katharina Ameli
Lecturer at the Institue for Sociology and coordinator at the Interdisciplinary Center for Animal Welfare Research at Justus-Liebig-Universität Giessen
Multispecies ethnography in animal-assisted services
Following professor Tim Ingold’s thought-provoking seminar in March, our research group continues the conversation on more-than-human approaches with a focus on multispecies ethnography. Dr. Katharina Ameli will share with us insights from her work on animal-assisted services, inviting us to consider how non-human beings actively shape social worlds.
Multispecies ethnography offers an innovative methodological framework for researching animal-assisted services by understanding human-animal interactions not only as functional relationships, but as reciprocal, socially and materially embedded practices. Instead of viewing animals as objects of human care, this approach places their agency, perceptual worlds, and individual contributions at the center of analysis. The talk will address the inclusion of animals within multispecies ethnography in animal-assisted services.
THURSDAY 06 November 2025
Prof. Alison Beach
Professor in Medieval History at University of St. Andrews
Medieval Work as Embodied Experience: The Case of ELS215 from Bone to Biomolecule
Alison Beach is a professor in Medieval history at the School of History, University of St. Andrews, UK. In this seminar, Alison will present a historical osteobiography of a female individual (burial designation ELS215) buried in the medieval monastic cemetery of Elstow Abbey (Bedfordshire, UK) in the twelfth or thirteenth century. Combining burial topography, osteological analysis, dental calculus analysis, proteomics, and stable isotope analysis, I will venture an integrated story of a medieval woman who both performed manual work within her community and experienced extreme physical impairment from advanced tuberculosis myelitis (Pott’s disease). I will offer evidence of the type of manual work in ELS215 engaged, as well as her diet, oral health, and ingestion of medicinal materials. This case study is part of the AHRC-funded project Word of Mouth: Embodied Stories of Premodern Women at Work. The Word of Mouth project seeks to recover, contextualise, and synthesise women’s stories, providing an unprecedentedly fine-grained picture of women’s work and occupational health in monastic contexts.
THURSDAY 13 November 2025
Dr. Jonathan Goldenberg
Postdoctoral researcher at the University of Oslo
SHARKSense: Reading the ocean through the colors of sharks
Pollution is one of the most pervasive threats to biodiversity, yet assessing its ecological impact remains costly and complex. In the SHARKSense project, we explore an unconventional but promising bioindicator: skin darkness. Sharks, as meso-apex predators, accumulate heavy metals from both their environment and the food chain. Intriguingly, melanin - a pigment responsible for dark coloration - can bind and sequester these toxic compounds. Could pollution be driving the evolution of darker-skinned individuals?
SHARKSense investigates this question by integrating computer vision, evolutionary biology, biochemistry, and fieldwork to uncover correlations between melanin deposition, skin darkness, and pollution. By spanning taxa, geography, and time, we aim to determine whether integument color can serve as a reliable, non-invasive proxy for ecosystem health, beginning with a foundational framework that links pigmentation patterns to environmental stressors. This talk will introduce SHARKSense, present early findings, and discuss how pigmentation might offer a scalable tool for ecological monitoring, bridging molecular mechanisms with conservation strategy.