A thermal trade?off between viral production and degradation drives virus?phytoplankton population dynamics

Marine viruses interact with microbial hosts in dynamic environments shaped by variation abiotic factors, including temperature. However, the impacts of temperature on viral infection phytoplankton are not well understood. Here we coupled mathematical modelling experiments to explore effect virus-phytoplankton interactions. Our model shows negative consequences high temperatures and suggests a temperature-dependent threshold between production degradation. Modelling long-term dynamics different average revealed potential for host-virus coexistence, epidemic free or habitat loss states. We generalised our global sea surface corresponding present future seas show that climate change may differentially influence virus-host depending pair. Temperature-dependent changes infectivity virus particles lead shifts habitats warmer oceans, analogous projected macro-, microorganisms pathogens.