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Table 2 Summary statistics for sample groups (Switzerland = CH; France = France; SFR = South-France; VIE = Vienna) including all (T) samples and only female specimens (♀): number of samples (N); number of alleles (Na); effective number of alleles (Ne); observed (Ho), expected (He) and unbiased expected heterozygosity (uHe)

From: Evidence for multiple introductions of an invasive wild bee species currently under rapid range expansion in Europe

Group   NT N♀ NaT Na♀ NeT Ne♀ HoT Ho♀ HeT He♀ uHeT uHe♀
CH Mean 21.717 11.804 2.804 2.783 2.133 2.092 0.148 0.272 0.478 0.469 0.489 0.490
  SE 0.157 0.080 0.127 0.124 0.094 0.093 0.014 0.026 0.029 0.028 0.029 0.029
FR Mean 35.196 19.587 3.326 3.283 2.132 2.127 0.074 0.104 0.483 0.482 0.490 0.494
  SE 0.328 0.180 0.146 0.138 0.09 0.091 0.006 0.009 0.027 0.027 0.027 0.028
SFR Mean 6.891 4.891 2.119 2.565 2.119 2.175 0.134 0.188 0.471 0.476 0.508 0.530
  SE 0.055 0.056 0.098 0.123 0.098 0.109 0.017 0.024 0.029 0.031 0.032 0.034
VIE Mean 8.826 4.957 1.456 1.761 1.456 1.413 0.282 0.321 0.251 0.242 0.266 0.269
  SE 0.072 0.030 0.069 0.094 0.069 0.056 0.037 0.041 0.031 0.029 0.033 0.032