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. 2021 Mar 3;288(1946):20202955. doi: 10.1098/rspb.2020.2955

Table 2.

Results of bootstrapped Pearson correlations of associations, differences and regression coefficients between mean site-level population trends and demographic rates of resident bird species and co-occurring migratory bird species of differing status (arid-zone and humid-zone) on 13 859 PECBMS survey sites and 336 Euro-CE sites across Europe. (*Indicates significant differences from zero (or from unity, in the case of regression coefficients).)

demographic rate migratory status mean correlation coefficient (95% CIs) mean difference migrant – resident (95% CIs) mean regression coefficient (95% CIs)
population change arid 0.12 (0.10–0.15)* 0.010 (0.005 to 0.013)* 0.26 (0.21–0.32)*
humid 0.18 (0.15–0.20)* −0.007 (−0.010 to −0.004)* 0.30 (0.25–0.34)*
productivity arid 0.44 (0.35–0.52)* −0.17 (−0.20 to −0.15)* 0.60 (0.46–0.71)*
humid 0.48 (0.42–0.53)* −0.06 (−0.08 to −0.04)* 0.60 (0.51–0.69)*
adult survival arid 0.06 (−0.08–0.21)ns 0.14 (0.08 to 0.20)* 0.09 (−0.12–0.35)*
humid 0.14 (0.03–0.26)* 0.12 (0.07 to 0.16)* 0.19 (0.03–0.35)*