Pollen-based vegetation reconstruction from IODP Hole 339-U1385A, drilled on the SW Iberian margin during IODP Expedition 339 (37°34.285′ N, 10°7.562′ W; 2578 m water depth). The studied interval spans the last 17.5 kyr, including the last deglaciation and the Holocene. The dataset contains percentages of all identified pollen and spore morphotypes, as well as the main ecological groups: Mediterranean forest (comprising Mediterranean taxa and all temperate trees and shrubs, excluding Pinus, Cedrus and Cupressaceae), Mediterranean taxa sensu stricto, and semi-desert plants.Pollen analysis: Thirty-eight levels were sampled from Holes E and D every 5-10 cm between 0.05 and 2.92 crmcd (corrected revised metres composite depth). Pollen preparation followed the standard protocol for marine sediments: coarse sieving at 150 µm, sequential cold HCl and HF treatments to remove carbonates and silicates, a final 25% HCl step to eliminate fluorosilicates, micro-sieving at 10 µm, and slide preparation in glycerol. Pollen analysis was carried out using a Nikon light microscope at ×500 and ×1000 (oil immersion) magnification.

Further fundings:* WarmClim, Award: French research program LEFE (INSU-CNRS)