Late Quaternary Vegetation History of Sulphur Lake, Southwest Yukon Territory, Canada

Paleoecological studies based on the analysis of pollen in lake sediments offer the potential for high resolution and well-dated independent records of past vegetation and climate. A 5 m sediment core was raised from the deepest section of Sulphur Lake, located in the southwest Yukon (60.95°N, 137.95°W; 847 m a.s.l.). The pollen spectra indicate that before 11250 yr BP, the vegetation was a herbaceous tundra marked by the presence of Artemisia. However, the date of the establishment of this initial vegetation cannot be secured because of problems with the basal radiocarbon date and the lack of a reliable chronology of regional deglaciation. A birch shrub tundra prevailed between 11250 and 10250 yr BP and was then replaced by a discontinuous poplar woodland. Juniperus populations expanded at 9500 yr BP, and by 8400 yr BP, Picea invaded the region. The white spruce forest that occupies the region today was established by approximately 8000 yr BP. Alnus crispa increased at 6000 yr BP, but the simultaneous increase in Picea mariana found at most sites in the Yukon was not present at Sulphur Lake. Black spruce was never a dominant component of the vegetation in the southwest Yukon, as it was in the south-central Yukon between 6100 and 4100 yr BP

Arctic · Black spruce · Chronology · Climate change · Deglaciation · Geography · Glacier · Holocene · Moraine · Physical geography · Pollen · Quaternary · Radiocarbon dating · Shrub · Taiga · Tree line · Tundra · Vegetation (pathology) · Woodland · Climate change and permafrost · Ecology · Forestry · Geology · Geology and Paleoclimatology Research · Oceanography · Paleontology · Tree-ring climate responses

• Regional atmospheric circulation change in the North Pacific during the Holocene inferred from lacustrine carbonate oxygen isotopes, Yukon Territory, Canada

  Open Access•Lesleigh Anderson, M Abbott et al.•Quaternary Research•2005

  Incluir item

• Late glacial and Holocene sedimentation, vegetation, and climate history from easternmost Beringia (northern Yukon Territory, Canada)

  Open Access•Michael Fritz, Ulrike Herzschuh et al.•Quaternary Research•2012

  Incluir item

• Regional atmospheric circulation change in the North Pacific during the Holocene inferred from lacustrine carbonate oxygen isotopes, Yukon Territory, Canada

  Open Access•Lesleigh Anderson, Mark B Abbott et al.•Quaternary Research•2005

  Incluir item

• Holocene paleoenvironmental changes inferred from diatom assemblages in sediments of Kusawa Lake, Yukon Territory, Canada

  Open Access•Krish Chakraborty, Sarah A Finkelstein et al.•Quaternary Research•2010

  Incluir item

• Tree-ring Analysis of Five Picea Glauca- Dominated Sites from the Interior Boreal Forest in the Shakwak Trench, Yukon Territory, Canada

  R Zalatan, Konrad Gajewski•Polar Geography•2005

  Incluir item

• Multidisciplinary Investigations of Alpine Ice Patches in Southwest Yukon, Canada

  Open Access•Richard Farnell, P Gregory Hare et al.•ARCTIC•2004

  Incluir item

• Holocene thermal maximum in the western Arctic (0–180°W)

  Open Access•D S Kaufman, Thomas A Ager et al.•Quaternary Science Reviews•2004

  Incluir item

• A Multiscalar Consideration of the Athabascan Migration

  Open Access•Briana Doering, Julie A Esdale et al.•American Antiquity•2020

  Incluir item

• Multi-proxy Holocene palaeoclimatic record from a saline lake in the Canadian Subarctic

  Open Access•Reinhard Pienitz, John P Smol et al.•The Holocene•2000

  Incluir item

• Lateglacial and Holocene paleoenvironmental changes recorded in lake sediments, Brock Plateau (Melville Hills), Northwest Territories, Canada

  Open Access•Kathleen M Rühland, Kathleen Rühland et al.•The Holocene•2009

  Incluir item

• Holocene migration of lodgepole pine ( Pinus contorta var. latifolia ) in southern Yukon, Canada

  Open Access•Wayne L Strong, Leonard V Hills•The Holocene•2013

  Incluir item

• Late Holocene Land Use in the Nutzotin Mountains

  J J Patterson•Arctic Anthropology•2008

  Incluir item

• Paleoenvironmental Studies in Southwestern Yukon

  Open Access•Konrad Gajewski, Joan Bunbury et al.•ARCTIC•2014

  Incluir item

• Late Quaternary Vegetation History of Sulphur Lake, Southwest Yukon Territory, Canada

  Open Access•Terri Lacourse, Konrad Gajewski•ARCTIC•2000

  Incluir item

• Science and the St Elias

  Open Access•Ryan K Danby, David S Hik et al.•Geographical Journal•2003

  Incluir item

• Global climates since the last glacial maximum

  H E Wright, T Webb et al.•Global climates since the last…•1993

  Incluir item

• The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory

  Open Access•Glenn S L Stuart, James W Helmer et al.•ARCTIC•1989

  Incluir item

• Late Quaternary Vegetation History of Sulphur Lake, Southwest Yukon Territory, Canada

  Open Access•Terri Lacourse, Konrad Gajewski•ARCTIC•2000

  Incluir item

• Post-Glacial Vegetation History of the Ittlemit Lake Basin, Southwest Yukon Territory

  Open Access•Xia-Cheng Wang, Xia‐Cheng Wang et al.•ARCTIC•1991

  Incluir item