Fig. 1From: Site conditions influence the climate signal of intra-annual density fluctuations in tree rings of Q. ilex L.Microphotographs of Quercus ilex tree rings used for anatomical parameter measurements. Vessels are filled with chalk. White arrows point the boundary of tree rings; red arrows delimit the IADF. Measurement areas are shown by white rectangles; the red rectangle shows the measurement area of an IADF. a Years 2013–2015, core n.3b, SW; b Year 1968, core n.8a, SW. Bars = 200 μmBack to article page