Gaëlle Aggeri, a landscape engineer, spent fifteen years as head of the Landscape Design Office of the Nature and Landscape Department of the City of Montpellier, followed by ten years as national training manager for public green spaces at the National Centre for the Civil Service. Since 2015, she has been head of the natural and agricultural public spaces department at the CNFPT. At the same time, as a research associate at the Landscape Research Laboratory of the École Nationale Supérieure de Paysage (ENSP) in Versailles, she wrote the book "Inventer les villes-natures de demain : gestion différenciée, gestion durable des espaces verts" (Inventing the nature-cities of tomorrow: differentiated management, sustainable management of green spaces) for Educagri Editions in 2010, and is currently writing publications on public policies on nature in cities and governance.
After studying modern literature, Laurence Baudelet turned to ethnology and specialised in urban anthropology. She devoted her master's degree to the study of a Parisian square. She continued her training with a master's degree in urban planning focusing on the integration of community gardens into urban spaces. At the same time, in 1997, she joined the informal collective that gave rise to the shared garden movement. As an urban planning consultant working on issues related to nature in the city, in 2001 she helped found the Graine de Jardins association, the Paris region head of the LE JARDIN DANS TOUS SES ÉTATS network. She became the project coordinator and worked on supporting shared garden projects, creating municipal programmes (Main Verte in Paris) and, today, on the link between gardens and health. She is a member of the Heritage Commission, Gardens section, of the Ministry of Culture and a member of the scientific council of the Plante & Cité association.
An engineer in nature management and geomatics at the City of Geneva's Parks and Gardens Department, he has been involved since 2016 in the analysis, evaluation and planning of projects dedicated to urban biodiversity. His expertise covers habitat ecology, differentiated management, the ecological functionality of public spaces and the operational implementation of the objectives of the Municipal Biodiversity Strategy. He also provides field expertise and contributes to the development of tools to facilitate decision-making in the field of ecological planning. Accustomed to multidisciplinary approaches involving architects, urban planners and engineers, he ensures the coherent and realistic integration of ecological issues into land use planning and the enhancement of urban natural heritage.
Nathalie Machon is a professor of ecology at the National Museum of Natural History (MNHN) in Paris, attached to the Centre for Ecology and Conservation Sciences (CESCO, UMR 7204) research unit. She heads the working group on urban biodiversity. Her current research focuses mainly on urban plant ecology and the dynamics of plant communities in cities, the study of factors that structure biodiversity in anthropised environments, and the conservation of rare plant species. She is the creator and scientific coordinator of participatory science projects related to botany, such as Sauvages de ma rue (Wild Plants on My Street) and Vigie-Flore (Flora Watch). She is the director of the DIVONA Doctoral School (MNHN – Sorbonne University) and co-director of a Master's programme dedicated to biodiversity and land use planning.