scholarly journals Geochemistry and Travertine Dating Provide New Insights into the Hydrogeology of the Great Artesian Basin, South Australia

2013 ◽  
Vol 7 ◽  
pp. 521-524 ◽  
Author(s):  
A.J. Love ◽  
P. Shand ◽  
K. Karlstrom ◽  
L. Crossey ◽  
P. Rousseau-Gueutin ◽  
...  
Keyword(s):  
South Australia ◽  
Artesian Basin ◽  
Great Artesian Basin

A molecular systematic overview of wolf spiders associated with Great Artesian Basin springs in South Australia: evolutionary affinities and an assessment of metapopulation structure in two species

2008 ◽  
Vol 22 (2) ◽  
pp. 151 ◽  
Author(s):  
Travis B. Gotch ◽  
Mark Adams ◽  
Nick P. Murphy ◽  
Andrew D. Austin
Keyword(s):  
Population Structure ◽  
South Australia ◽  
Species Boundaries ◽  
Molecular Systematic ◽  
Wolf Spiders ◽  
Widespread Species ◽  
Artesian Basin ◽  
Polymorphic Loci ◽  
Great Artesian Basin ◽  
Allozyme Loci

The molecular genetic techniques of allozyme electrophoresis and mitochondrial DNA sequencing were used to examine species boundaries, phylogenetic affinities, and population structure in wolf spiders associated with artesian springs of the Great Artesian Basin (GAB) in South Australia. These springs contain the only permanent water in this extremely arid region, and consequently are of great biological, economic, and sociological significance. Molecular diagnoses of species boundaries in nine lycosid species, involving 56 individuals genotyped at 37 putative allozyme loci and 21 individuals sequenced for a ~600-bp portion of nicotinamide adenine dinucleotide dehydrogenase 1 (NADH1), were largely concordant with those recently proposed on morphological criteria. They also identified a species not previously collected, and suggested that GAB and mesic forms of Venatrix arenaris (Hogg) may not be conspecific. As well as insights into the evolutionary relationships among species and genera, phylogenetic analysis demonstrated two distinct GAB lineages within Venatrix Roewer and Hogna Simon. Population structure analyses of the two most widespread species revealed contrasting patterns. For V. fontis Framenau & Vink, allozyme analyses of 300 individuals at 15 polymorphic loci plus NADH1 sequence analysis of 72 individuals revealed the presence of distinctive subpopulations at most sites, and a partial correlation with overall geographic proximity. In contrast, allozyme analysis of 191 V. arenaris specimens at 12 polymorphic loci demonstrated a comparative lack of both within-site variability and between-site differentiation in the GAB metapopulation.

Systematics of Haloniscus Chilton, 1920 (Isopoda: Oniscidea: Philosciidae), with description of four new species from threatened Great Artesian Basin springs in South Australia

2019 ◽  
Vol 39 (5) ◽  
pp. 651-668
Author(s):  
Danielle N Stringer ◽  
Rachael A King ◽  
Stefano Taiti ◽  
Michelle T Guzik ◽  
Steven J B Cooper ◽  
...  
Keyword(s):  
New Species ◽  
Species Delimitation ◽  
Arid Zone ◽  
South Australia ◽  
Distinct Species ◽  
Morphological Data ◽  
Molecular Evidence ◽  
Artesian Basin ◽  
Great Artesian Basin ◽  
The Family

Abstract Recent surveys of Australian arid-zone groundwater ecosystems have uncovered considerable species diversity and extreme endemism for the oniscidean isopod genus Haloniscus Chilton, 1920. Phylogenetic and species delimitation analyses have recognised several distinct species from the Great Artesian Basin springs in South Australia, inspiring a morphological reassessment of the genus and examination of specimens from the iconic Lake Eyre and Dalhousie Springs. We present a revised diagnosis of Haloniscus, transfer the genus from the family Scyphacidae to Philosciidae and describe four new species, H. fontanus Stringer, King & Taiti n. sp., H. microphthalmus Stringer, King & Taiti n. sp., H. rotundus Stringer, King & Taiti n. sp., and H. yardiyaensis Stringer, King & Taiti n. sp., based on combined morphological and molecular evidence. We compare the results of molecular-based species delimitation analyses with morphological data, provide distribution information, and present a key to the described species of Haloniscus. Two species presently included in Andricophiloscia Vandel, 1973, A. stepheni (Nicholls & Barnes, 1926) and A. pedisetosa Taiti & Humphreys, 2001, from Western Australia are also transferred to Haloniscus.

Analysis of subsurface mound spring connectivity in shale of the western margin of the Great Artesian Basin, South Australia

2013 ◽  
Vol 21 (7) ◽  
pp. 1605-1617 ◽  
Author(s):  
Todd Halihan ◽  
Andrew Love ◽  
Mark Keppel ◽  
Volmer Berens
Keyword(s):  
South Australia ◽  
Artesian Basin ◽  
Western Margin ◽  
Great Artesian Basin
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