“…4-5). These data can be related to a humid phase described for the western Mediterranean ~ 4350-4150 cal BP, during which rainfall increased considerably (Magny, 2004;Magny et al, 2006;López-Sáez et al, 2017). In the case of the DNP, such rainfall increase would mean a greater contribution of fresh water to the marshland, increasing the low marsh (40%) and decreasing the high marsh (7%), producing also an increase of algal populations (Botryococcus, Pediastrum, Zygnemataceae) and other NPPs (HdV-18, HdV-181, Gyratrix hermaphroditus); these taxa are signs of meso-eutrophic moist environments (López-Sáez et al, 1998;van Geel and Aptroot, 2006).…”