jvs1343-sup-0001-TableS1.docWord document34KTable S1. Location of the study plots and their main characteristics ordered by the classification of water availability level according to a K-means cluster analysis. The species present at each plot are QI, Quercus ilex; QF, Quercus faginea; PN, Pinus nigra and JT, Juniperus thurifera. The species code is followed by either -j for juveniles or -a for adults.
jvs1343-sup-0002-TableS2.docxWord document14KTable S2. Significant results obtained by the nearest neighbor contingency table analysis of spatial segregation (Dixon 2002) at each plot and level of water availability (high-water-availability plots and low-water-availability plots –HWA and LWA, respectively–). ‘Tree’ means the focal tree and ‘NN’ is the nearest neighbor (QI, Q. ilex; QF, Quercus faginea; PN, Pinus nigra; JT, Juniperus thurifera; followed by -a for adults or by -j for juveniles). ‘Obs’ is the observed frequency and ‘Exp’ is the expected frequency in the contingency table. ‘S’ is the segregation index. When ‘Tree’ and ‘NN’ are the same type of tree, it is Si; values of S> 0 indicate that these individuals are segregated (they are the nearest neighbors of themselves more often than expected from random labeling); Si < 0 indicate the opposite and values of Si close to 0 are consistent with random labeling of the neighbors of type i. When ‘Tree’ and ‘NN’ are different types of trees, it is Sij. Sij is larger than 0 when Nij (the frequency of neighbors of trees j around trees i) is larger than expected under random labeling; Sij < 0 indicates the opposite and values of Sij close to 0 are consistent with random labeling. The signification of the index is tested indirectly with the statistic Zij (column Z) which P-value, based on the asymptotic normal distribution ( of the Z statistic.
jvs1343-sup-0003-FigureS1.docxWord document13KFigure S1. Map of the Alto Tajo study area in Spain. Plot names (as in Table S1) are indicated according to the water-availability level: high water availability and low water availability (HWA and LWA, respectively).

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