Viral ecO-evOlutionary Dynamics of wild and domestic pOllinatOrs under global change – VOODOO
Pollinators and pollination underpin ecosystem and human health but they face multiple threats from global change. Anthropogenic modification of landscape floral resources by land-use and alien species may nutritionally stress pollinators and alter their abundance and species interactions. This can magnify disease risk, especially from RNA viruses that, due to high mutation and recombination rates, rapidly adapt to environmental changes and novel hosts, often leading to emerging infectious diseases. However, major knowledge gaps exist on the potential for global change to drive virus host shifts and emergent pandemic viruses that could lead to managed and wild pollinator losses. Recent evidence suggests viral co-infection across a spectrum of pollinators. Nevertheless how global change pressures shape pollinator disease risk by modifying host nutrition, viral adaptation to alternative hosts, the buffering effects of species diversity and the role of particular species or habitats as transmission hubs, remains poorly understood. VOODOO aims to discover how the eco-epidemiological dynamics of plant-pollinator-virus interactions from individual to community levels are modulated by changes to the availability and quality of nutritional (floral) resources driven by intensive agriculture, alien plant species, and urbanisation. Using ecological sampling and high-resolution molecular analyses (quantitative and strand-specific PCR), we will quantify tripartite (plant-pollinator-virus) networks in different landscapes and use network and eco-epidemiological modelling to reveal disease hubs and dynamics across organisms and habitats. We will couple this with semi-field experiments examining transmission pathways and laboratory selection experiments (incorporating NGS) testing viral fitness/ adaptation in known and alternative host species subjected to field-realistic nutritional stress treatments. We will engage with diverse societal actors to integrate complementary knowledge on decision-making for risk management and implementation to assure sustainable societal outcomes.
Monsieur Vanbergen Adam (AGROECOLOGIE - UMR 1347)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
AGROECO. AGROECOLOGIE - UMR 1347
Help of the ANR 299,993 euros
Beginning and duration of the scientific project: January 2020 - 36 Months