Christian Tchana Ngacheu  is a PhD candidate in Population Biology and Ecology at La Rochelle University and the Centre for Biological Studies of Chizé (CEBC–CNRS), France. His doctoral research examines how agricultural practices, particularly pesticide use and organic farming, influence host-parasite interactions, avian health, and the emergence of zoonotic disease risks in farmland specialist birds. By integrating field ecology, parasitology, ecotoxicology, and advanced statistical modelling, his work seeks to understand how agricultural intensification affects wildlife health and pathogen transmission, providing evidence to support biodiversity conservation and One Health approaches to disease prevention. Christian holds a Master’s degree in Biodiversity, Ecology and Evolution, specializing in Integrative Biology of Interactions, from the University of Montpellier (France), and a Master’s degree in Zoology from the University of Yaoundé I (Cameroon). His previous research has explored avian malaria, parasite-mediated effects on plumage coloration, conservation ecology, and bird phenology, reflecting a strong interdisciplinary background in wildlife biology and disease ecology. His research interests encompass disease ecology, zoonotic diseases, conservation biology, ecotoxicology, and the impacts of global environmental change on wildlife health and pathogen transmission dynamics. As Deputy Group Leader of the ZONES Research Group, Christian is committed to advancing interdisciplinary research that bridges ecology, epidemiology, and public health to strengthen integrated disease surveillance and promote evidence-based conservation and One Health solutions.