Was Aboriginal population recovery delayed after the Last Glacial Maximum? A synthesis of a terminal Pleistocene deposit from the Sydney Basin, New South Wales, Australia

Basal optically stimulated luminescence (OSL) ages of more than 50 000 years in loessic (parna) mantles on the Central Tablelands of New South Wales indicate significant aeolian silt (c. 30 μm mode) deposition commenced well before the onset of the last glacial maximum. Each mantle consists of >1 m of reddish silty clay loam–silty clay with an earthy fabric which sits atop manganese and iron pans and saprolite. Mixing of saprolite-derived material into the pans and also into the silty layer indicates a site history of steady accumulation of aeolian loess and continual pedogenesis. No palaeosols are found. The OSL chronology of both sites, while low resolution, indicates an almost constant mass accumulation rate from 50 000 years ago through the last glacial maximum and into the Holocene. Local factors affecting retention of deposited dust may be responsible for the apparent passivity of the sites.

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Phylogenetic placement of a recently discovered population of the threatened alpine she-oak skink Cyclodomorphus praealtus (Squamata: Scincidae) in Victoria

Memoirs of Museum Victoria ◽

10.24199/j.mmv.2021.80.07 ◽

2021 ◽

pp. 153-157

Author(s):

Joanna Sumner ◽

Margaret L. Haines ◽

Peter Lawrence ◽

Jenny Lawrence ◽

Nick Clemann

Keyword(s):

Phylogenetic Analysis ◽

National Park ◽

New South ◽

New South Wales ◽

Last Glacial ◽

Evolutionarily Significant Units ◽

Phylogenetic Placement ◽

South Wales ◽

Disjunct Populations ◽

The Last Glacial

The alpine she-oak skink Cyclodomorphus praealtus is a threatened alpine endemic lizard from the mainland of Australia. The species is previously known from disjunct populations in Kosciuszko National Park in New South Wales and three isolated localities in the Victorian Alps. The New South Wales and Victorian populations represent separate evolutionarily significant units. In 2011, a fourth Victorian population was discovered. We conducted a phylogenetic analysis and determined that the newly discovered population is discrete and may have been separated from other populations since the end of the last glacial maxima. This population requires separate management.

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Salt source for dryland salinity - evidence from an upland catchment on the Southern Tablelands of New South Wales

Soil Research ◽

10.1071/sr99120 ◽

2001 ◽

Vol 39 (1) ◽

pp. 39 ◽

Cited By ~ 19

Author(s):

R. I. Acworth ◽

J. Jankowski

Keyword(s):

New South ◽

New South Wales ◽

Dust Storms ◽

Dryland Salinity ◽

Heterogeneous Distribution ◽

Small Catchment ◽

South Wales ◽

Bedrock Weathering ◽

Salt Distribution ◽

The Last Glacial

A detailed study involving drilling, geophysics, hydrogeochemistry, and groundwater monitoring over a 10-year period has been carried out at a small catchment south-east of Yass on the Southern Tablelands of New South Wales to investigate the source of salt causing dryland salinity. The catchment is within 2 km of the top of a regional groundwater and surface water divide and remains substantially tree covered. The investigations have found a highly heterogeneous distribution of salt, most of which is associated with swelling clay. Dispersion of this clay causes the surface features commonly associated with dryland salinity. There is no hydrogeochemical evidence to suggest evaporative or transpirative concentration of salt in the groundwater. The short flow path from the top of the catchment cannot provide a significant source of salt from bedrock weathering. An alternative model of salt accumulation is proposed with the salt imported into the catchment with silt during dust storms in the arid and windy conditions during the last glacial. The management implications of this model of salt distribution and the associated dryland salinity development are discussed.

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Observations on the effectiveness of shooting feral pigs from helicopters.

Wildlife Research ◽

10.1071/wr9930771 ◽

1993 ◽

Vol 20 (6) ◽

pp. 771 ◽

Cited By ~ 12

Author(s):

G Saunders

Keyword(s):

New South ◽

New South Wales ◽

Reduction Rate ◽

Population Recovery ◽

Management Implications ◽

Feral Pigs ◽

Removal Method ◽

South Wales ◽

Population Reduction ◽

Rate Of Increase

The use of helicopters for the shooting of feral pigs in western New South Wales has become increasingly popular and widespread. Studies were conducted to evaluate the effectiveness of this practice in terms of population reduction, rate of population recovery and cost. The study site was an area of 120 km*2 on the southern edge of the Macquarie Marshes. Estimated population reductions, calculated by the index-removal method, over two consecutive years were 80 and 65%. The associated rate of increase (r) in the 12 months following the first population reduction was 1.34, which is equivalent to a recovery of 77% in numbers. Results and levels of control inputs were collated for an additional consecutive year and compared with other studies. Management implications from this study are also considered.

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X. Evidence of a large extinct lizard (notiosaurus dentatus, Owen) from pleistocene deposit, new south wales, Australia

Philosophical Transactions of the Royal Society of London ◽

10.1098/rstl.1884.0011 ◽

1884 ◽

Vol 175 ◽

pp. 249-251 ◽

Cited By ~ 2

Keyword(s):

New South ◽

New South Wales ◽

South Wales ◽

The Subject ◽

Pleistocene Deposit

On the 19th November, 1883, I received from Robt. Etheridge, Jun., Esq., the subject of the present Paper, with the following memorandum which accompanied the specimen transmitted to him by Ch. S. Wilkinson, Esq., F. L. S., F. G. S., of the Department of Mines, Sydney. “Portion of jaw and teeth from Cuddie Springs. These springs are in pleistocene deposits full of bones of Diprotodon , Sthenurus , Crocodile, &c., as far down as they have been sunk into—viz., 30 feet.”

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Comparison of Thermoluminescence and Radiocarbon Age-Determinations from Late-Pleistocene Alluvial Deposits Near Sydney, Australia

Quaternary Research ◽

10.1016/0033-5894(87)90082-2 ◽

1987 ◽

Vol 27 (3) ◽

pp. 263-269 ◽

Cited By ~ 27

Author(s):

G.C. Nanson ◽

R.W. Young

Keyword(s):

New South ◽

River System ◽

Main Body ◽

Alluvial Deposits ◽

Radiocarbon Age ◽

Fine Grained ◽

South Wales ◽

The Last Glacial Maximum ◽

Age Determinations ◽

The Last Glacial

AbstractRadiocarbon and thermoluminescence (TL) age-determinations have been obtained for a large Pleistocene alluvial terrace on the Nepean River near Sydney, New South Wales, Australia. The deposit was laid down by a braided river system prior to the last glacial maximum. Six thoroughly pretreated samples of charcoal and degraded wood buried within gravels at the base of the terrace yielded apparent 14C ages of ∼37,000–42,000 yr B.P. These compare favorably with four TL determinations that gave apparent ages of ∼41,000–47,000 yr B.P. for the same deposit. Adjustment of the 14C ages to take geomagnetic effects into account further improves the correlation between these two independent dating techniques. In addition, 14C and TL correctly identified a reworked portion of the fine-grained alluvial overburden as being substantially younger than the main body of the terrace. These results augur well for the usefulness of TL age determinations of certain alluvial deposits.

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