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Table 2 Spearman Rank correlation matrix for variables describing the capercaillie’s habitat (Relationships statistically significant at α = 0.05 are indicated by the use of italics strong correlation (Spearman rank correlation, |rs| > 0.70) between two variables is indicated by the use of bold)

From: Mature stand developmental stage has ceased to constitute the most suitable habitat for the capercaillie in the Augustów Forest, Poland

Description variables TSS PSP CCUL CCSL PCS GVH PCB DFR PSE TN
TSS −0.122 − 0.265 0.973 0.082 −0.015 0.075 −0.052 0.066 0.023
PSP   0.032 −0.105 −0.145 − 0.123 0.080 0.014 0.012 0.029
CCUL    −0.254 −0.153 − 0.241 −0.295 − 0.044 −0.192 0.436
CCSL     0.088 −0.020 0.075 −0.060 0.057 0.038
PCS      0.272 0.308 −0.113 0.097 −0.176
GVH       0.323 0.042 0.158 −0.262
PCB        −0.029 0.184 −0.310
DFR         0.080 −0.014
PSE          −0.183
TN