Changes in vegetation and seasonal climate since the last full glacial at Lake Frome, South Australia

Singh, Gurdip; Luly, Jon

doi:10.1016/0031-0182(91)90036-q

Cited by 97 publications

(83 citation statements)

References 10 publications

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“…If they belong to Chenopodiaceae they might represent fossils of the earliest Australian chenopod lineage, Scleroblitum (Kadereit et al 2005). From the Pliocene onwards, larger quantities of the chenopod pollen type were found in central Australia (Benbow et al 1995, Martin 1998b, Singh & Luly 1991 which matches with the diversification of Camphorosmeae during this time. However, these large quantities of chenopod-like pollen could also be the result of the spread of Atriplex communities in central Australia.…”

Section: Drawbacks Of Diva and Age Estimatesmentioning

confidence: 92%

“…During the Late Miocene, central Australia became more and more arid and dry woodlands and chenopod shrublands became major vegetation types (Martin 2006). Large quantities of the chenopod pollen type have been found in central Australia from the Pliocene onwards (Benbow et al 1995, Martin 1998b, Singh & Luly 1991. After a slightly wetter and warmer period at the beginning of the Pliocene, the climate has become gradually drier.…”

Section: Introductionmentioning

confidence: 99%

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Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Cabrera¹

2011

Telopea

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Camphorosmeae (Chenopodiaceae, formerly Sclerolaeneae) are widespread across all states of Australia. Molecular data revealed that the Australian Camphorosmeae represent a monophyletic lineage comprising 147 currently recognised species, 145 of which are endemic to Australia. Like their Eurasian relatives most Australian Camphorosmeae are well-adapted to dry and saline environments, and most species are distributed in semi-arid or arid landscapes of the Eremaean area of central and western Australia. The historical biogeography of the Australian Camphorosmeae is analysed using an ETS phylogeny of the group and DIVA. We found that diversification of the tribe started at the end of the Miocene, and that radiation took place during the Pliocene, probably driven by the aridification of Australia during this time. Southern west Australia probably served as the ancestral area, and we hypothesise that the ancestors of Australian Camphorosmeae were already adapted to dry and saline conditions and might have been distributed in coastal or saline inland habitats. Successful dispersal and establishment of Camphorosmeae in the then newly developed arid regions was probably enhanced by niche pre-emption. Our timing of the radiation of this drought-adapted lineage and the directions of its dispersal support the hypothesis that the aridification of Australia started during the Late Miocene and arid areas expanded during the Pliocene from the west to the east and then north.

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Section: Drawbacks Of Diva and Age Estimatesmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Cabrera¹

2011

Telopea

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“…1a), indicating that it was 15-20 times the modern volume between 18 and 16 ka (Cohen et al, 2011(Cohen et al, , 2012, coincident with relatively high levels of charcoal and woodland taxa pollen present in the sediments of the lake floor (Singh and Luly, 1991;Luly, 2001). The shift to aridity at 15.8 ka in Mairs Cave is supported by significant reductions in Callitris sp.…”

Section: Regional Geomorphology Recordsmentioning

confidence: 95%

“…The shift to aridity at 15.8 ka in Mairs Cave is supported by significant reductions in Callitris sp. pollen and charcoal (Singh and Luly, 1991). Fluvial records for the Goulburn, Lachlan and Gwydir catchments also indicate a wetter LGM interval, although the timing is either variable between catchments or lacks precision (Bowler, 1978;Kemp and Rhodes, 2010;Pietsch et al, 2013).…”

Section: Regional Geomorphology Recordsmentioning

confidence: 99%

Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23–15 ka)

et al. 2017

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Abstract. Terrestrial data spanning the Last Glacial Maximum (LGM) and deglaciation from the southern Australian region are sparse and limited to discontinuous sedimentological and geomorphological records with relatively large chronological uncertainties. This dearth of records has hindered a critical assessment of the role of the Southern Hemisphere mid-latitude westerly winds on the region's climate during this time period. In this study, two precisely dated speleothem records for Mairs Cave, Flinders Ranges, are presented, providing for the first time a detailed terrestrial hydroclimatic record for the southern Australian drylands during 23-15 ka. Recharge to Mairs Cave is interpreted from the speleothem record by the activation of growth, physical flood layering, and δ 18 O and δ 13 C minima. Periods of lowered recharge are indicated by 18 O and 13 C enrichment, primarily affecting δ 18 O, argued to be driven by evaporation of shallow soil/epikarst water in this water-limited environment. A hydrological driver is supported by calcite fabric changes. These include the presence of laminae, visible organic colloids, and occasional dissolution features, related to recharge, as well as the presence of sediment bands representing cave floor flooding. A shift to slower-growing, more compact calcite and an absence of lamination is interpreted to represent reduced recharge.

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“…A pollen record from Groote Eylandt indicates a marked decline in precipitation between 4,000 and 3,500 BP, with increased rainfall during the last thousand years (Schulmeister and Lees 1992). These general trends toward increased aridity in the mid-Holocene are supported by records of flood deposits in the Kimberley (Gillieson et al 1991) and by other indicators such as δ 18 O records extracted from coral, foraminifera, varve, lake and sea bottom sediments from sites in Australian and the circum-Pacific region (Brookfield and Allan 1989;Hope and Golson 1995;Kershaw 1995;Koutavas et al 2002;McCarthy and Head 2001;McGlone et al 1992;McPhail and Hope 1985;Rodbell et al 1999;Singh and Luly 1991).…”

Section: Climate Changementioning

confidence: 72%

Lithics in the land of the lightning brothers : The Archaeology of Wardaman Country, Northern Territory

Clarkson¹

2007

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terra australis 25Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia -lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present.Since the beginning of the series, the basic colour on the spine and cover has distinguished the regional distribution of topics as follows: ochre for Australia, green for New Guinea, red for South-East Asia and blue for the Pacific Islands. From 2001, issues with a gold spine will include conference proceedings, edited papers and monographs which in topic or desired format do not fit easily within the original arrangements. All volumes are numbered within the same series. List of volumes in Terra AustralisVolume 1: Burrill Lake and Currarong: Coastal Sites in Southern New South Wales. R.J. Lampert (1971) Volume 2: Ol Tumbuna: Archaeological Excavations in the Eastern Central Highlands, Papua New Guinea. J.P. White (1972) Volume 3 6.7. Cores found at quarries associated with lancet flakes. Note the large amounts of cortex on both cores, the cortical platform on one (A) and the single conchoidal scar on the platform of the other (B). 92 6.8. Conjoined quartzite cores and lancet flakes from A: a quarry near Wynbarr waterhole (Site 17), B and C: a quarry near Garnawala 2. Illustration C shows the actual conjoined core, while A and B show reconstructions of the original nodules and the series of flake removals taken as a slice through the centre of the platform. 93 6.9. Graphs showing the mean and standard deviations for changes in various aspects of scraper morphology as reduction intensity increases, as measured using Kuhn's GIUR or % perimeter retouched. A: mean retouched edge angle, B: % step terminated retouch, C: % perimeter retouched, D: curvature of the retouched edge, and E: % with notches. 96 6.10. Graphic depiction of changes to the frequency and evenness with which retouch is distributed across eight segments as retouch increases. 97 6.11. A reduction model for scrapers from Wardaman Country. A-C: increasing reduction. 98 6.12. Graphs showing the selection of a restricted range of flake shapes for scraper manufacture. A: marginal angle and elongation, and B: marginal angle and cross-section. 100 6.13. Changes in the morphology of points over the reduction sequence. A and B: changes in weight, and C: changes in the % of perimeter retouched. 103 6.14. Changes in point cross-section measured in two ways. A: lateral cross-section (width:thickness ratio), and B: longitudinal cross-section (length:thickness ratio). ForewordAlthough Chris Clarkson journeyed to the remote Victoria River region of the Northern Territory to investigate the prehistoric past, it is not the exotic location of the s...

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Changes in vegetation and seasonal climate since the last full glacial at Lake Frome, South Australia

Cited by 97 publications

References 10 publications

Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23–15 ka)

Lithics in the land of the lightning brothers : The Archaeology of Wardaman Country, Northern Territory

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Changes in vegetation and seasonal climate since the last full glacial at Lake Frome, South Australia

Cited by 97 publications

References 10 publications

Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Biogeography of Camphorosmeae (Chenopodiaceae): tracking the Tertiary history of Australian aridification

Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23–15 ka)

Lithics in the land of the lightning brothers : The Archaeology of Wardaman Country, Northern Territory

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Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23–15 ka)