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Map of the investigated area:1 — military range border,2 — forests,3 — roads,4 — local population of pear trees.Dendrochronological sequences in semi-logarithmic scale making up the wild pear chronology BIE from Biedrusko and pointer years: (+) positive, (–) negative pointer years.Results of correlation and response function analyses for wild pear chronology (BIE) and air temperature (T), precipitation (P) and insolation (IN); bars denote correlation coefficients; line represents the response function; significant values (α = 0.05) are marked as black squares and grey bars; “p” before month denotes previous year.Comparison of the wild pear indexes chronologies (BIE and GR) in time span 1963–2007.