Document


Title

Mid-holocene environmental change at Black Ridge Brook, Dartmoor, SW England: a new appraisal based on fungal spore analysis
Document Type: Journal Article
Author(s): J. J. Blackford; J. B. Innes; J. J. Hatton; C. J. Caseldine
Publication Year: 2006

Cataloging Information

Keyword(s):
  • Betula
  • Calluna vulgaris
  • charcoal
  • charcoal
  • Corylus
  • Corylus avellana
  • cover
  • Dartmoor
  • disturbance
  • England
  • Europe
  • fire frequency
  • fungal spores
  • fungi
  • grasslands
  • grazing
  • Great Britain
  • heathlands
  • histories
  • Mesolithic
  • NPPs
  • paleoecology
  • peat
  • pollen
  • pollen
  • prehistoric fires
  • radiocarbon dating
  • statistical analysis
Region(s):
  • International
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 48002
Tall Timbers Record Number: 24047
TTRS Location Status: In-file
TTRS Call Number: Fire File
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

Black Ridge Brook is an upland peat site in a high rainfall area of SW England. Pollen evidence has shown that it was once wooded, with Betula and Corylus dominant, before periods of change to more open ground and the spread of mire vegetation. Previous palaeoecological work at the site inferred a history of burning based on microscopic charcoal levels, with the burning periods reducing Betula cover. These changes occurred between 9000 and 6300 BP (radiocarbon years) during the Mesolithic archaeological period, and have been linked to the impacts of hunter-gatherers using fire, as suggested elsewhere in upland Britain.In this paper, hypotheses of deliberate burning, grazing and the reasons for using fire are tested using non-pollen palynomorphs in addition to the microcharcoal and pollen data. While indicators of dung are present, the frequencies are low, and not always in the levels expected on the basis of vegetation change, although some correlation of disturbance indicators is seen in the earlier Holocene before woodland cover reached a maximum. There is evidence for increased and sustained growth of Corylus following increases in inferred fire frequency. Statistical analysis of the combined data set shows the association of some non-pollen types with specific stages in the development, and then recession, of woodland. Other types show the presence of on-site burning or host plants, and help distinguish between local and regional vegetation changes. The nature of the depositional environment is both shown by, but also affects, the non-pollen microfossil record. © 2006 Elsevier B.V. All rights reserved.

Citation:
Blackford, J. J., J. B. Innes, J. J. Hatton, and C. J. Caseldine. 2006. Mid-holocene environmental change at Black Ridge Brook, Dartmoor, SW England: a new appraisal based on fungal spore analysis. Review of Palaeobotany and Palynology, v. 141, no. 1-2, p. 189-201. 1016/j.revpalbo.2006.03.009.