A 12,000-year perspective of fire and vegetation history in Northern Cape Breton, Nova Scotia, Canada
Datos Bibliográficos
| ID | 7170441 |
|---|---|
| Autores | Kathleen R Laird (0000-0001-7014-8201, Queen's University, autor de correspondencia), Anne-Claude Pépin (Cape Breton Highlands National Park), Katherine E Moir (0000-0001-8109-3904, Queen's University), Brian F Cummings (0000-0001-7254-3248, Queen's University) |
| Año | 2025 |
| Volumen | 35 |
| Número | 6-7 |
| Páginas | 624-636 |
| Fecha de publicación | 2025-07-01 |
| Peer Reviewed | Sí |
| Open Access | Sí |
| Tipo | ARTICLE |
| Revista | The Holocene (JOURNAL) |
| Identificadores de la revista | ISSN: 0959-6836 • E-ISSN: 1477-0911 |
| Editorial | SAGE Publications Inc (PUBLISHER) |
| DOI | 10.1177/09596836251327732 |
| OpenAlex | W4409392930 |
| Idioma | EN |
| Referencias citadas | 82 |
Fire has influenced age stands and forest composition in boreal ecosystems over millennia. The Cape Breton Highlands National Park in northern Nova Scotia encompasses a unique mixture of Boreal, Taiga and Acadian ecosystems. A sediment record from Paquette Lake within the park spans the initial development of the lake to the early 20 th century and is the first well-dated Holocene record of vegetation and fire history from this region. Vegetation history based on analysis of pollen grains, and fire history based on accumulation of macrocharcoal particles (>125 μm) and identification of charcoal morphotypes, provides information on millennial-scale changes in forest composition and on the frequency and size of local to regional fires. Forest composition follows the inferred fire regime zones over the Holocene, supporting the strong interconnections between climate, vegetation, and fire. The early Holocene fire regime (ca. 11,000–7000 cal yr BP) was characterized by large and frequent fires under warming conditions and high fuel availability when Picea and Pinus were most abundant. The mid-Holocene (ca. 7000–5000 cal yr BP) was characterized by a lower frequency of smaller fires than in the early Holocene and some large local fires when Quercus and Tsuga reached their highest abundances. The lowest fire frequency over the Holocene occurred between ~5000 and 2000 cal yr BP when Fagus increased, and Pinus and Quercus declined. The early 20th century composition of forest and fire regime in Paquette Lake was established ca. 2000 cal yr BP. This period had a higher fire frequency and larger local fires than between ~5000 and 2000 cal yr BP but a lower magnitude in comparison to the early Holocene. Records of ecosystem change over millennia provide critical baselines for modeling future scenarios of vegetation and climate change
Archaeology · Boreal · Ecosystem · Fire ecology · Fire regime · Geography · Holocene · Physical geography · Taiga · Tsuga · Fire effects on ecosystems · Geology and Paleoclimatology Research · Landslides and related hazards · Ecology · Forestry · Geology · Oceanography
Comparing fire-history interpretations based on area, number and estimated volume of macroscopic charcoal in lake sediments
Tracking recorded fires using charcoal morphology from the sedimentary sequence of Prosser Lake, British Columbia (Canada)
Human-ecosystem interactions in relation to Holocene environmental change in Port Joli Harbour, southwestern Nova Scotia, Canada
Short Paper
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Climate Change and Forest Disturbances
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Formal ratification of the subdivision of the Holocene Series/Epoch (Quaternary System/Period)
Mid- to Late Holocene climate change
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Loss on ignition as a method for estimating organic and carbonate content in sediments
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Coniss
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The reconstruction of burned area and fire severity using charcoal from boreal lake sediments
Interpretation of charcoal morphotypes in sediments from Ferry Lake, Wisconsin, USA
Long-distance transport of macroscopic charcoal by an intensive crown fire in the Swiss Alps - implications for fire history reconstruction
Determining the age of the mid-Holocene Tsuga cana densis (hemlock) decline, eastern North America
Mid to late-Holocene sea-surface temperature variability off north-eastern Newfoundland and its linkage to the North Atlantic Oscillation
Experimental production and analysis of microscopic charcoal from wood, leaves and grasses
Radiocarbon AMS Dating of Pollen Extracted from Peat Samples
| Velocidad de citación | historical |
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| Altamente citado | No |