Sedimentary Ancient DNA Reveals Local Vegetation Changes Driven by Glacial Activity and Climate
Bibliographic Data
| ID | 15801896 |
|---|---|
| Authors | Lucas Elliott (0000-0002-0099-8005, corresponding author), Dilli P Rijal (0000-0002-6194-4414), Antony Brown (0000-0002-1990-4654), Jostein Bakke (0000-0001-6114-0400, Bjerknes Centre for Climate Research), Lasse Topstad (0000-0002-7162-6743), Peter D Heintzman (0000-0002-6449-0219, Stockholm University), Inger G Alsos (0000-0002-8610-1085, corresponding author) |
| Year | 2023 |
| Volume | 6 |
| Issue | 1 |
| Pages | 7-7 |
| Publication date | 2023-01-07 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Quaternary (JOURNAL) |
| Journal identifiers | ISSN: 2571-550X • E-ISSN: 2571-550X |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/quat6010007 |
| OpenAlex | W4313893927 |
| Language | EN |
| Citations received | 1 |
| References cited | 10 |
Disentangling the effects of glaciers and climate on vegetation is complicated by the confounding role that climate plays in both systems. We reconstructed changes in vegetation occurring over the Holocene at Jøkelvatnet, a lake located directly downstream from the Langfjordjøkel glacier in northern Norway. We used a sedimentary ancient DNA (sedaDNA) metabarcoding dataset of 38 samples from a lake sediment core spanning 10,400 years using primers targeting the P6 loop of the trnL (UAA) intron. A total of 193 plant taxa were identified revealing a pattern of continually increasing richness over the time period. Vegetation surveys conducted around Jøkelvatnet show a high concordance with the taxa identified through sedaDNA metabarcoding. We identified four distinct vegetation assemblage zones with transitions at ca. 9.7, 8.4 and 4.3 ka with the first and last mirroring climatic shifts recorded by the Langfjordjøkel glacier. Soil disturbance trait values of the vegetation increased with glacial activity, suggesting that the glacier had a direct impact on plants growing in the catchment. Temperature optimum and moisture trait values correlated with both glacial activity and reconstructed climatic variables showing direct and indirect effects of climate change on the vegetation. In contrast to other catchments without an active glacier, the vegetation at Jøkelvatnet has displayed an increased sensitivity to climate change throughout the Middle and Late Holocene. Beyond the direct impact of climate change on arctic and alpine vegetation, our results suggest the ongoing disappearance of glaciers will have an additional effect on plant communities
Biology · Climate change · Geography · Geomorphology · Glacial period · Glacier · Holocene · Physical geography · Vegetation (pathology · Environmental DNA in Biodiversity Studies · Genomics and Phylogenetic Studies · Microbial Community Ecology and Physiology · Ecology · Geology · Oceanography
Data Analysis
Future uses of pollen analysis must include plant macrofossils
Structure and origin of Holocene cold events
The last Eurasian ice sheets – a chronological database and time‐slice reconstruction, Dated‐1
Flexible paleoclimate age-depth models using an autoregressive gamma process
Sedimentary ancient DNA from Lake Skartjørna, Svalbard
IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP
| Citations per year | 1 |
|---|---|
| Citation span | 2027 - 2027 (1) |
| Highly cited | No |