Fernando Ojeda
Professor in the Department of Biology (Botany) at the University of Cádiz and head of the research group Function, Ecology and Biodiversity in Mediterranean Ecosystems at the Institute for Wine and Agri-Food Research (IVAGRO)
Over 3,000 hectares have been burnt, and that’s a massive amount. There have been bigger fires, but this covers a huge area. It’s not normal for fires of this scale to occur in Mediterranean landscapes. In most cases, with fires of this magnitude – for example, the one in Pedrógão Grande in Portugal in 2017, which claimed 64 lives, many of whom were trapped in their cars whilst trying to flee – what is actually happening? The local vegetation is burning with great intensity. Many areas of our landscape have been afforested to prevent desertification, creating a uniform landscape of pine trees at the expense of less visually striking vegetation, such as esparto grasslands or other scrubland. In the east, these are Pinus halepensis, a native species that has undergone significant artificial selection through domestication and is highly successful. They are veritable powder kegs. They burn with such intensity that they become unstoppable hotspots; moreover, their cones burst open like embers and spread the fire even further. Mega-fires are associated with forest plantations, as I explained in an article in The Conversation.