A Holocene lacustrine record of environmental change in northeastern Prince of Wales Island, Nunavut, Canada

Gajewski, Konrad; Frappier, Monique

doi:10.1111/j.1502-3885.2001.tb01047.x

Cited by 28 publications

(13 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9b; RS36 and RS29; Gajewski, 1995). Pollen data from a lake on Prince of Wales Island (Gajewski and Frappier, 2001) reveal warmest conditions between 7 and 4 ka, followed by cooling. Highest values of biogenic silica suggest higher diatom production in Lake PW02 and warmest conditions from 9.5 to 6.5 ka and cooling after 4 ka ( Fig.…”

Section: Central Canadian Arcticmentioning

confidence: 95%

“…Source of data in (a): KR02 (Peros and Gajewski, 2008;Fortin and Gajewski, 2010;Podritske and Gajewski, 2007), WB02 (Fortin and Gajewski, 2010), BC01 (Peros et al, 2010). Source of data in (b): JR01 (Zabenskie and Gajewski, 2007;LeBlanc et al, 2004), PW02 (Finklestein and , PW03 (Finkelstein and Gajewski, 2007), PWWL (Gajewski and Frappier, 2001), RS29 and RS36 (Gajewski, 1995). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)…”

Section: West and South Greenlandmentioning

confidence: 99%

See 1 more Smart Citation

Holocene climate change in Arctic Canada and Greenland

Briner

McKay

Axford

et al. 2016

Quaternary Science Reviews

Self Cite

200

176

View full text Add to dashboard Cite

This synthesis paper summarizes published proxy climate evidence showing the spatial and temporal pattern of climate change through the Holocene in Arctic Canada and Greenland. Our synthesis includes 47 records from a recently published database of highly resolved Holocene paleoclimate time series from the Arctic (Sundqvist et al., 2014). We analyze the temperature histories represented by the database and compare them with paleoclimate and environmental information from 54 additional published records, mostly from datasets that did not fit the selection criteria for the Arctic Holocene database. Combined, we review evidence from a variety of proxy archives including glaciers (ice cores and glacial geomorphology), lake sediments, peat sequences, and coastal and deep-marine sediments. The temperature-sensitive records indicate more consistent and earlier Holocene warmth in the north and east, and a more diffuse and later Holocene thermal maximum in the south and west. Principal components analysis reveals two dominant Holocene trends, one with early Holocene warmth followed by cooling in the middle Holocene, the other with a broader period of warmth in the middle Holocene followed by cooling in the late Holocene. The temperature decrease from the warmest to the coolest portions of the Holocene is 3.0 ± 1.0 C on average (n ¼ 11 sites). The Greenland Ice Sheet retracted to its minimum extent between 5 and 3 ka, consistent with many sites from around Greenland depicting a switch from warm to cool conditions around that time. The spatial pattern of temperature change through the Holocene was likely driven by the decrease in northern latitude summer insolation through the Holocene, the varied influence of waning ice sheets in the early Holocene, and the variable influx of Atlantic Water into the study region.

show abstract

Section: Central Canadian Arcticmentioning

confidence: 95%

Section: West and South Greenlandmentioning

confidence: 99%

Holocene climate change in Arctic Canada and Greenland

Briner

McKay

Axford

et al. 2016

Quaternary Science Reviews

Self Cite

200

176

View full text Add to dashboard Cite

show abstract

“…Similarly, the moss, Scorpidium scorpoides, which had extended north to Bathurst Island in the central High Arctic until 2.76 ka BP, was thought to have died out there sometime thereafter (Brassard and Steere, 1968;Blake, 1974). It has since been reported living on adjacent Prince of Wales Island (Gajewski and Frappier, 2001), but this occurrence may be a relict of range retraction. On Somerset and Prince of Wales islands, a general reduction of ground cover by plants in the last 3 ka is registered by reduced pollen production particularly by willow (Salix arctica), heather, sedge, and sorrel (Gajewski, 1995;Gajewski and Frappier, 2001).…”

Section: -1 Ka Bpmentioning

confidence: 98%

“…It has since been reported living on adjacent Prince of Wales Island (Gajewski and Frappier, 2001), but this occurrence may be a relict of range retraction. On Somerset and Prince of Wales islands, a general reduction of ground cover by plants in the last 3 ka is registered by reduced pollen production particularly by willow (Salix arctica), heather, sedge, and sorrel (Gajewski, 1995;Gajewski and Frappier, 2001). In the herb tundra of Banks Island, grasses expanded at the expense of sedges during the last 3 ka, which is also taken as a sign of cooling (Gajewski et al, 2000a).…”

Section: -1 Ka Bpmentioning

confidence: 99%

Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains*

Dyke

2007

gpq

114

118

View full text Add to dashboard Cite

AbstractBiome maps spanning the interval from the last glacial maximum to modern times are presented. The biome distributions at 18 ka BP were probably as nearly in equilibrium with climate as are the modern distributions, but deglacial biomes were probably in disequilibrium. Ice sheet configuration was a strong control of climate until 7 ka BP. Regional climate trends can be inferred from changing biome distributions, but during periods of disequilibrium, biome distributions under-represent summer warming. Because of summer cooling by 2-4 °C during the Holocene, largely in the last 3-5 ka, middle and certain early Holocene biome distributions and species compositions are reasonable analogues of future equilibrium displacements due to equivalent warming, at least in areas that were long-since deglaciated. Past biome migration rates in response to rapid regional warming during deglaciation were mainly in the range of 100-200 m per year. If these rates pertain in the future, biomes may shift 10-20 km in most regions over the next century. A major impediment to using former Holocene conditions as a guide to future conditions is that warmer Holocene summers were accompanied by colder winters, whereas warmer future summers will be accompanied by warmer winters.

show abstract

“…The Innuitian Ice Cap deglaciated from the northwest to the south, beginning~14,000 cal yr BP, and the western Canadian Arctic was mostly free of ice by 10,000 cal yr BP (Dyke, 2004). Pollen and diatom records from the central Arctic Islands indicate warmer conditions in the early Holocene and a late Holocene cooling (Gajewski, 1995;Gajewski and Frappier, 2001;Leblanc et al, 2004;Zabenskie and Gajewski, 2007;Finkelstein and Gajewski, 2007), but neither the timing nor the magnitude of late Holocene cooling is well constrained (Gajewski and Atkinson, 2003). Dyke andSavelle (2000, 2001) and Dyke et al (1996Dyke et al ( , 1997 reconstructed variations in inter-island ice and water mass extent through the analysis of frequency distributions of marine mammal bones found on raised beaches.…”

Section: Introductionmentioning

confidence: 99%

Multi-proxy record of postglacial environmental change, south-central Melville Island, Northwest Territories, Canada

et al. 2010

Self Cite

View full text Add to dashboard Cite

A sediment core from Lake BC01 (75"10.945?N, 111"55.181?W, 225"m asl) on south-central Melville Island, NWT, Canada, provides the first continuous postglacial environmental record for the region. Fossil pollen results indicate that the postglacial landscape was dominated by Poaceae andSalix, typical of a High Arctic plant community, whereas the Arctic herbOxyriaunderwent a gradual increase during the late Holocene. Pollen-based climate reconstructions suggests the presence of a cold and dry period ~12,000"cal yr BP, possibly representing the Younger Dryas, followed by warmer and wetter conditions from 11,000 to 5000"cal yr BP, likely reflective of the Holocene Thermal Maximum. The climate then underwent a gradual cooling and drying from 5000"cal yr BP to the present, suggesting a late Holocene neoglacial cooling. Diatom preservation was poor prior to 5000"cal yr BP, when conditions were warmest, suggesting that diatom dissolution may in part be climatically controlled. Diatom concentrations were highest ~4500"cal yr BP but then decreased substantially by 3500"cal yr BP and remained low before recovering slightly in the 20th century. An abrupt warming occurred during the past 70 yr at the site, although the magnitude of this warming did not exceed that of the early Holocene.

show abstract

A Holocene lacustrine record of environmental change in northeastern Prince of Wales Island, Nunavut, Canada

Cited by 28 publications

References 19 publications

Holocene climate change in Arctic Canada and Greenland

Holocene climate change in Arctic Canada and Greenland

Late Quaternary Vegetation History of Northern North America Based on Pollen, Macrofossil, and Faunal Remains*

Multi-proxy record of postglacial environmental change, south-central Melville Island, Northwest Territories, Canada

Contact Info

Product

Resources

About