Reconstruction of the late Pleistocene grassland of the Columbia basin, Washington, USA, based on phytolith records in loess

Blinnikov, Mikhail S.; Busacca, Alan J.; Whitlock, Cathy

doi:10.1016/s0031-0182(01)00353-4

Cited by 155 publications

(132 citation statements)

References 39 publications

Supporting

Mentioning

109

Contrasting

Unclassified

Order By: Relevance

“…steppe persisted in the northern part of the Great Basin and vicinity (Barnosky, 1985;Mehringer, 1985), where the anticyclonic easterly winds prevailed. Phytolith evidence from loess sections reveals the presence of altitudinally arranged steppe with sagebrush (Artemisia) and a variety of (Blinnikov et al, 2002). Treeline in the mountains of the Yellowstone region northeast of the Great Basin and in the Front Range of Colorado was about 500-600 m lower than present and alpine tundra was thus much more extensive than it is today (Baker, 1976;Legg and Baker, 1980).…”

Section: Ka Bpmentioning

confidence: 99%

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

Dyke

2007

gpq

113

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

Section: Ka Bpmentioning

confidence: 99%

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

Dyke

2007

gpq

113

118

View full text Add to dashboard Cite

show abstract

“…Although primarily found in the temperate zone, Poa is a very widely distributed grass genus [18]. Blinnikov et al [19] used Poa phytoliths alongside Stipa and Festuca in the identification of vegetation composition in the Columbia basin. Regarding the Poa genus, the Poa pratensis L. species group [P. alpigena (Fries) Lindman, P. pratensis L., P. angustifolia L.] [20] is one of the taxonomically most complicated groups in the world.…”

Section: Introductionmentioning

confidence: 99%

Quantifiable differences between phytolith assemblages detected at species level: analysis of the leaves of nine Poa species (Poaceae)

et al. 2015

View full text Add to dashboard Cite

The taxonomic value of phytolith assemblages and their degree of variability within different species of the same genus is still an undervalued issue in the botanical range of phytolith studies. However the understanding of grass phytolith variance and its implications to plant systematics is doubtless.In the present study phytoliths of the lateral shoots (leaves) of nine, globally distributed Poa species (Pooideae -Poaceae) are described. Phytoliths were recovered from Poa specimens by the dry ashing technique. Altogether 6223 disarticulated phytoliths were counted (approximately 500-700 phytoliths per species) in 54 plant samples, which cover six shoots of nine species. Not only the relative frequency of each morphotype was calculated, but measurements were conducted to determine the biogenic silica content of Poa lateral shoots. A phytolith reference collection for the nine selected species of a worldwide importance was also compiled. The description of the most significant phytolith morphotypes and their taxonomic relationships are given here.Results suggest that the biogenic silica content of the Poa lateral shoots was determined to be relatively high within all nine species. Phytolith assemblage data was subjected to multivariate statistical analyses (e.g., CA and PCA) in order to find differences and similarities among the nine Poa species. Results show that the two closely related Poa of the P. pratensis species group, namely the P. pratensis and P. angustifolia, only slightly differ from the other Poa species if we consider their rondel-trapeziform short cells (SC) phytolith frequencies.

show abstract

“…This diagnostic feature is widely applied to reconstruct the palaeovegetation. During the last decade many studies on vegetation dynamics during the Holocene and/or Pleistocene have been conducted based on the analysis of phytoliths extracted from buried soils, lake deposits, archaeological sediments, and recent soils (Fisher et al, 1995;Gol`yeva et al, 1995;Piperno and Becker, 1996;Blecker et al, 1997;Alexandre et al, 1999;Gol'eva and Aleksandrovskij, 1999;Horrocks et al, 2000;Blinnikov et al, 2002;Delhon et al, 2003;Piperno and Jones, 2003;Gallego et al, 2004;Piperno, 2006a,b, Barczi et al, 2009. In recent soils the procedure for reconstructing palaeovegetation commonly involves extracting phytoliths from different soil depths, the frequency counting of phytolith morphotypes in each depth, and interpreting the phytolith records by relating variations in phytolith morphology to past changes in the vegetation cover (Fisher et al, 1995;Gol`yeva et al, 1995;Piperno and Becker, 1996;Gallego et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Phytolith transport in soil: A field study using fluorescent labelling

et al. 2010

View full text Add to dashboard Cite

Reconstruction of the late Pleistocene grassland of the Columbia basin, Washington, USA, based on phytolith records in loess

Cited by 155 publications

References 39 publications

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

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

Quantifiable differences between phytolith assemblages detected at species level: analysis of the leaves of nine Poa species (Poaceae)

Phytolith transport in soil: A field study using fluorescent labelling

Contact Info

Product

Resources

About