Comparison of incisor and bone δ<sup>18</sup>O<sub>CO3</sub> values from the individuals where both tissues were analysed (n = 5 in each species).

<p>1: <i>A</i>. <i>terrestris</i>, 2: <i>M</i>. <i>glareolus</i>, 3: <i>M</i>. <i>agrestis</i>, 4: <i>M</i>. <i>arvalis</i>, 5: <i>A</i>. <i>sylvaticus</i>, 6: <i>M</i>. <i>musculus</i>, 7: <i>R</i>. <i>norvegicus</i>. The dashed lines represent the deviation of incisor mean values from bone mean values in ‰ from the 1∶1 line (solid line).</p>