Jean-Michel Gaillard is currently a Research Director at the French National Centre for Scientific Research (CNRS) and he is based at the University Lyon 1. His research concentrates on understanding evolutionary processes in populations of large mammals from analyses of their dynamics and on identifying life history strategies of vertebrates from comparative studies. He has also worked on how vertebrate populations are responding to climate change. He is also interested in developing new management strategies to minimize conflicts between human activities and large game species in a changing environment, in close collaboration with the Office Français de la Biodiversité. He has published 380 scientific articles and currently is or have been Associate Editor of six scientific journals, including American Naturalist, Ecography, Ecology Letters, Plos Biology, and Oecologia. He is currently Senior Editor of Journal of Animal Ecology. His work is widely quoted in the scientific literature (> 20,000 citations).

Jean-François Lemaître is currently a Research Director at the French National Centre for Scientific Research (CNRS) and he is based at the Laboratory of Biometry and Evolutionary Biology (University Lyon 1). JF Lemaître obtained his PhD from the University of Liverpool in 2010 and after several post-docs (Geneva, Lyon) was recruited by the CNRS in 2014. For more than 10 years, he is studying the evolutionary causes of ageing among vertebrates through an integrative approach bridging evolutionary biology, comparative demography and ecophysiology and combining analyses performed at both inter- and intra-specific levels. He is currently focusing on identifying the biological and ecological factors shaping the diversity of reproductive ageing patterns observed in both males and females across mammals. He is associate editor at Functional Ecology and recommender at PCI Evolutionary Biology. JF Lemaître has published more than 120 scientific articles and book chapters. In 2024, he co-edited the book: ‘The Biodemography of Ageing and Longevity’ (Cambridge University Press).

Victor Ronget is a post-doc researcher in the University of Mainz (Germany). He is a biodemographer interested in understanding the diversity of life history tactics in animals. He did his PhD with Jean-Michel Gaillard and Jean-François Lemaître at the University of Lyon 1 where he started to compile age-specific data in MALDDABA to describe the different patterns of senescence. With the group of Hanna Kokko in Mainz, he is currently working on understanding the evolutionary causes behind the process of aging using both modelling and comparative approaches.