TY - JOUR T1 - Environmental vulnerability of the global ocean plankton community interactome JF - bioRxiv DO - 10.1101/2020.11.09.375295 SP - 2020.11.09.375295 AU - S. Chaffron AU - E. Delage AU - M. Budinich AU - D. Vintache AU - N. Henry AU - C. Nef AU - M. Ardyna AU - A.A. Zayed AU - P.C. Junger AU - P.E. Galand AU - C. Lovejoy AU - A. Murray AU - H. Sarmento AU - Tara Oceans coordinators AU - S. Acinas AU - M. Babin AU - D. Iudicone AU - O. Jaillon AU - E. Karsenti AU - P. Wincker AU - L. Karp-Boss AU - M.B. Sullivan AU - C. Bowler AU - C. de Vargas AU - D. Eveillard Y1 - 2020/01/01 UR - http://biorxiv.org/content/early/2020/11/10/2020.11.09.375295.abstract N2 - Marine plankton form complex communities of interacting organisms at the base of the food web, which sustain oceanic biogeochemical cycles, and help regulate climate. Though global surveys are starting to reveal ecological drivers underlying planktonic community structure, and predicted climate change responses, it is unclear how community-scale species interactions will be affected by climate change. Here we leveraged Tara Oceans sampling to infer a global ocean cross-domain plankton co-occurrence network – the community interactome – and used niche modeling to assess its vulnerabilities to environmental change. Globally, this revealed a plankton interactome self-organized latitudinally into marine biomes (Trades, Westerlies, Polar), and more connected poleward. Integrated niche modeling revealed biome-specific community interactome responses to environmental change, and forecasted most affected lineages for each community. These results provide baseline approaches to assess community structure and organismal interactions under climate scenarios, while identifying plausible plankton bioindicators for ocean monitoring of climate change.Competing Interest StatementThe authors have declared no competing interest. ER -