SEARCH

SEARCH BY CITATION

FilenameFormatSizeDescription
pce12072-sup-0001-si.zip255K

Figure S1. Long-term climatic trends recorded in the study area. Above: mean annual temperatures (T): thin line, CRU dataset; bold line, data from Teruel meteorological station corrected for the altitude of Alcalá de la Selva (−0.65 °C every 100 m gained in elevation). Below: total annual precipitation (P): thin line, CRU dataset; bold line, data from Alcalá de la Selva meteorological station. CRU trends were smoothed by LOESS fitting (span = 0.5). Temperature trends from Teruel were fitted to a linear regression (slope = 0.025 °C yr−1). The grey bars highlight climatic conditions after the 2001–2002 dieback episode.

Figure S2. Trees affected by winter-drought induced dieback in the study area showing brown needles (the photograph was taken in February 2002).

Figure S3. Estimated rates of radial increment for declining (D) and non-declining (ND) trees based on manual band dendrometers recorded in 2008 (means ± SE) and related climatic conditions (T, mean monthly temperature; P, total monthly precipitation).

Figure S4. Frequencies of earlywood (EW) tracheids as a function of their transversal lumen diameter for declining (D, filled bars) and non-declining (ND, hatched bars) Scots pines. The frequencies between both types of trees were computed considering years of high (wide rings: 1976, 1984 and 1992) and low radial growth (small rings: 1974, 1987, 1998). Frequencies were compared among decline classes to test the null hypothesis that the lumen distributions of the two groups of trees did not differ using an adjusted G test (Gadj).

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.