The declining quality of late-Holocene ombrotrophic communities and the loss of Sphagnum austinii (Sull. ex Aust.) on raised bogs in Wales
Bibliographic Data
| ID | 12267665 |
|---|---|
| Authors | Paul Hughes (0000-0002-8447-382X, University of Southampton, corresponding author), P D M Hughes (University of Southampton), Sarah H Lomas-Clarke (University of Southampton), J Schulz (University of Southampton), P Jones (0000-0002-2158-1938, Countryside Council for Wales, Llys y Bont, Parc Menai, Bangor LL57 4BN, UK), P S Jones |
| Year | 2007 |
| Volume | 17 |
| Issue | 5 |
| Pages | 613-625 |
| Publication date | 2007-07-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | The Holocene (JOURNAL) |
| Journal identifiers | ISSN: 0959-6836 • E-ISSN: 1477-0911 |
| Publisher | SAGE Publishing (PUBLISHER • US) |
| DOI | 10.1177/0959683607078985 |
| OpenAlex | W2029866620 |
| Language | EN |
| Citations received | 2 |
| References cited | 28 |
The modern floristic composition of the principal raised bogs of Wales is significantly altered compared with their histories of development from the early to mid Holocene. This paper uses pollen and plant macrofossil records from two raised bogs together with previously published data from a further two sites to explore the key factors contributing to the present condition of Welsh ombrotrophic plant communities. Results show Betula and Molinia invasion is a recent feature of bog development in Wales. Previous Holocene `dry-phases' were characterized by Ericaceae and Pinus establishment, supporting recent experimental evidence that Betula and Molinia encroachment is primarily a response to nitrogen (N) loading rather than desiccation on intact bogs. Several of the bogs featured in this study also show severe signs of structural damage, not only from peat cutting but, in the case of Cors Caron, from channel processes in the adjacent River Teifi. Radiocarbon dating and inter-site comparisons of peat accumulation rates show that Rhos Goch Common in particular has been heavily impacted by peripheral peat cutting, leading to dewatering, significant subsidence of its peat dome and the spread of hummock and high dry ridge communities. Finally, the decline and local extinction of Sphagnum austinii in bogs across Europe represents one of the most significant changes in ombrotrophic community composition in the late Holocene. Co-registered pollen and macrofossil evidence from Cors Caron demonstrates that increases in landuse intensity over the last 2000 years are temporally associated with reductions in the abundance of S. austinii and ultimately its local disappearance from the palaeoecological record
Biology · Bog · Geography · Holocene · Macrofossil · Mire · Ombrotrophic · Peat · Physical geography · Sphagnum · Testate amoebae · Geology and Paleoclimatology Research · Lichen and fungal ecology · Peatlands and Wetlands Ecology · Ecology · Geology · Oceanography
Karakterisering af løse jordarter
Handbook of European Sphagna.
Mire-development pathways and palaeoclimatic records from a full Holocene peat archive at Walton Moss, Cumbria, England
A sensitive high-resolution record of late Holocene climatic change from a raised bog in northern England
Evidence for climatic deteriorations associated with the decline of Sphagnum imbricatum Hornsch. ex Russ. in six ombrotrophic mires from northern England and the Scottish Borders
Mid- and late-Holocene vegetation history and tephra studies at Fenton Cottage, Lancashire, U.K
Intcal04 Terrestrial Radiocarbon Age Calibration, 0–26 Cal Kyr BP
| Citations per year | 0.11 |
|---|---|
| Citation span | 2008 - 2017 (10) |
| Highly cited | No |