Dear colleagues , We are pleased to announce a new edition of the Jacques Monod Conference on the ecology and evolution of host-parasite interactions. The conference, entitled Ecology and evolution of host-parasite interactions in a changing world , will take place in Roscoff (Brittany , France ) , from 2- 6 November 2026. Contributions will be organised around three main themes: (1) Abiotic stressors and the evolution of host and parasite ecological niches , (2) Predicting disease emergence: Epidemics, connectivity and evolution , (3) Evolution in multi-species interactions and ecological networks. More information about the conference, invited speakers and instructions on how to apply can be found under this link : [ https://cjm.sb-roscoff.fr/en/conference/ecology-and-evolution-host-parasite-interactions-changing-world ] The registration site is open and the deadline for applications is 6 June, 2026 . There are 7 5 slots available for participants , who will either give a short talk or present a poster. Don't hesitate to contact us if you any questions (Oliver.kaltz@umontpellier.fr, bkoskella@berkeley.edu). Looking forward to seeing you in Roscoff! Britt Koskella & Oliver Kaltz oliver.kaltz@umontpellier.fr Oliver Kaltz Directeur de Recherche CNRS Institut des Sciences de l'Evolution (ISEM) UMR 5554 (CC065) Université de Montpellier Place Eugène Bataillon 34095 Montpellier Cedex 05 France Tel. 33 (0)4 67 14 40 63 Fax 33 (0)4 67 14 40 61