 I arrived in Perth in 2015. You may wonder what makes me move to the most isolated and arid, populated environment continent. What makes me move in this Australian far west is not gold. It's another kind of richness, plant richness. Western Australia includes what is called a plant biodiversity hotspot. That means that it includes a lot of species. Curiously, current hypotheses explaining these extreme diversity in plants involves adverse conditions, such like aridity, bushfires, or moving dune system, such like the Lanceline dune presented in this slide. We currently think that these small scale disturbance are creating new space that allow species to colonize, that are awaiting plant colonization and promoting plant speciation. So we've recently discovered in Spain 100 million years old analog of the Western Australian hotspot. During that time in Spain, arid vegetation was around and was frequently disturbed by wildfire and moving dune. We describe different floral assemblages for different locations, and we've been able to describe an increase in diversity in different group of plants from the very small moses, relatively bigger fern, and conifers, and flowering plants. So it's a kind of a support of these previous hypotheses. The things, everything does not go all right, and eventually, the desert system gets flooded by sea level rise. It is something that should remind you the high title of current newspaper. That's a present concern. But everything is not black, either, because in Spain, as well as in Western Australia right now, we have the seed of the future vegetation that could come and should give the resources for the next generation. Thank you.