Vegetation history from archaeological charcoals in central Australia: The late Quaternary record from Puritjarra rock shelter

1995 ◽  
Vol 4 (3) ◽  
Author(s):  
M.A. Smith ◽  
Lins Vellen ◽  
Johanna Pask
Keyword(s):  
Vegetation History ◽  
Late Quaternary ◽  
Rock Shelter ◽  
Central Australia

scholarly journals Alluvial evidence for major climate and flow regime changes during the middle and late Quaternary in eastern central Australia

Geomorphology ◽  
2008 ◽  
Vol 101 (1-2) ◽  
pp. 109-129 ◽  
Author(s):  
Gerald C. Nanson ◽  
David M. Price ◽  
Brian G. Jones ◽  
Jerry C. Maroulis ◽  
Maria Coleman ◽  
...  
Keyword(s):  
Flow Regime ◽  
Late Quaternary ◽  
Regime Changes ◽  
Central Australia

Late Quaternary vegetation dynamics in a biodiversity hotspot, the Uluguru Mountains of Tanzania

2009 ◽  
Vol 72 (1) ◽  
pp. 111-122 ◽  
Author(s):  
Jemma Finch ◽  
Melanie J. Leng ◽  
Rob Marchant
Keyword(s):  
Environmental Changes ◽  
Vegetation History ◽  
Late Quaternary ◽  
Anthropogenic Activities ◽  
Significant Loss ◽  
Environmental Stability ◽  
Forest Composition ◽  
Eastern Arc ◽  
Uluguru Mountains

AbstractLate Quaternary vegetation history and environmental changes in a biodiverse tropical ecosystem are inferred from pollen, charcoal and carbon isotope evidence derived from a ∼ 48,000-yr sedimentary record from the Uluguru Mountains, a component of the Eastern Arc Mountains of Kenya and Tanzania. Results indicate that Eastern Arc forest composition has remained relatively stable during the past ∼ 48,000 yr. Long-term environmental stability of the Eastern Arc forests has been proposed as a mechanism for the accumulation and persistence of species during glacial periods, thus resulting in the diverse forests observed today. The pollen and isotope data presented here indicate some marked changes in abundance but no significant loss in moist forest taxa through the last glacial maximum, thereby providing support for the long-term environmental stability of the Eastern Arc. Anthropogenic activities, including burning and forest clearance, were found to play a moderate role in shaping the mosaic of forest patches and high-altitude grasslands that characterise the site today; however, this influence was tempered by the inaccessibility of the mountain.

Late Quaternary Water-Level Variations and Vegetation History at Crooked Pond, Southeastern Massachusetts

2001 ◽  
Vol 56 (3) ◽  
pp. 401-410 ◽  
Author(s):  
Bryan Shuman ◽  
Jennifer Bravo ◽  
Jonathan Kaye ◽  
Jason A. Lynch ◽  
Paige Newby ◽  
...  
Keyword(s):  
New England ◽  
Water Level ◽  
Vegetation History ◽  
Late Quaternary ◽  
Sediment Cores ◽  
Climatic Conditions ◽  
Water Levels ◽  
Eastern Canada ◽  
Southern New England ◽  
Dramatic Rise

AbstractSediment cores collected along a transect in Crooked Pond, southeastern Massachusetts, provide evidence of water-level changes between 15,000 cal yr B.P. and present. The extent of fine-grained, detrital, organic accumulation in the basin, inferred from sediment and pollen stratigraphies, varied over time and indicates low water levels between 11,200 and 8000 cal yr B.P. and from ca. 5300 to 3200 cal yr B.P. This history is consistent with the paleohydrology records from nearby Makepeace Cedar Swamp and other sites from New England and eastern Canada and with temporal patterns of regional changes in effective soil moisture inferred from pollen data. The similarities among these records indicate that (1) regional conditions were drier than today when white pine (Pinus strobus) grew abundantly in southern New England (11,200 to 9500 cal yr B.P.); (2) higher moisture levels existed between 8000 and 5500 cal yr B.P., possibly caused by increased meridonal circulation as the influence of the Laurentide ice sheet waned; and (3) drier conditions possibly contributed to the regional decline in hemlock (Tsuga) abundances at 5300 cal yr B.P. Although sea-level rise may have been an influence, moist climatic conditions during the late Holocene were the primary reason for a dramatic rise in water-table elevations.

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