Fig. 7: Regional climate record comparisons.
From: Both redox potential and climate control molecular proxies in Icelandic Holocene lake sediments
a Stóra and Litla Viðarvatn MST anomalies (°C, this study) where orange portion between 2900 and 1000 BP reflects a potential influence of suboxic conditions and SE indicates MST calibration standard error, b Stóra and Litla Viðarvatn sedaDNA species richness (this study), c Ytra-Áland pollen (%TLP, total land pollen, ref. 69), d Stóra Viðarvatn pyroPAHs (ng/g sed, ref. 14), e eastern North Iceland Shelf sea surface (HM107-05, ref. 73) and subsurface temperatures (JR51-GC35, ref. 72), and f North Iceland Shelf sea ice records based on the IP25 biomarker (ng/g sed) from sites MD99−2269 and JR51-GC35 (ref. 71). Vertical blue bars highlight peaks in Ericales and heathland inferred from Ytra-Áland pollen. Dashed blue line at 4000 BP marks the onset of local heathland expansion, and dashed gray line at 1500 BP indicates the onset of local soil erosion.
