Fig. 2
From: Autumn migration of the migrant hawker (Aeshna mixta) at the Baltic coast
(a) Relationship between δ2Hp and δ2Hn wingvalues and (b) the resulting European dragonfly wing isoscape. δ2Hn wing values of Aeshna cyanea (n = 34, black triangles) are from this study. Data on Aeshna interrupta (orange squares), Aeshna umbrosa (green circles) were taken from [11]. We used δ2Hp values of mean annual precipitation obtained using the ‘Online Isotopes in Precipitation Calculator’ [40,41,42]