Fig. 5.

Percentage abundance of selected chironomid taxa in the SOS record, total accumulation rate of chironomid head capsules (Influx, HC cm⁻² yr⁻¹), sediment organic content expressed as percentage of organic carbon (C_org, % DW), total phosphorus concentration in sediments (P_tot, mg g⁻¹ DW), the chironomid-inferred mean July air temperature (T_July, °C; thick line represents unsmoothed data, and thin line – a LOESS smoother with a span of 0.05), statistically significant zones for chironomid assemblages (dotted lines), and mean summer (June–August) and winter (December–February) insolation at 47°N (Laskar et al., 2004). The asterisk indicates the age of the Neolithic Iceman “Ötzi” (5300–5050 cal yr BP) found in the Ötztaler Alps at 3210 m a.s.l., ca 25 km from SOS (Bonani et al., 1994).