A new genus and six new species of the Parabathynellidae (Bathynellacea, Syncarida) from the Kimberley region, Western Australia

Cho, Joo‐Lae; Park, Jong‐Geun; Humphreys, W. F.

doi:10.1080/00222930400014148

Cited by 32 publications

(9 citation statements)

References 15 publications

(13 reference statements)

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“…Once again, previously unstudied aquifers have revealed new taxa of Bathynellidae, confirming the trend of diversification observed for many other stygofaunal groups in the Pilbara, including the Bathynellidae sister family Parabathynellidae (Cho et al, 2005;Hong & Cho, 2009;Cho & Humphreys, 2010;Abrams et al, 2012), the Tainisopidae and Phreatoicidae isopods (Knott & Halse, 1999;Wilson, 2003;Keable & Wilson, 2006;Finston et al, 2009), oligochaetes (Pinder, 2008;Brown et al, 2015) and the Paramelitidae amphipods (Finston et al, 2007(Finston et al, , 2008(Finston et al, , 2011.…”

Section: De Grey River Bathynellidae Diversitysupporting

confidence: 65%

The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment

et al. 2019

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The stygofaunal family of Bathynellidae, is an excellent group to study the processes that shape diversity and distribution, since they have unknown surface or marine relatives, high level of endemism, and limited dispersal abilities. Recent research on Bathynellidae in Western Australia (Pilbara) has uncovered new taxa with unexpected distributions and phylogenetic relationships, but the biogeographical processes that drive their diversification on the continent are still unclear. By exploring the diversity, distribution, and Downloaded from Brill.com07/04/2020 07:01:03PM via free access divergence time of Bathynellidae in a setting such as the perched and isolated aquifers of the Cleaverville Formation in the north of the De Grey River catchment (Pilbara), we aim to test the hypothesis that vicariance has shaped the distribution of this family, specifically if one or multiple vicariant events were involved. We analysed the specimens collected from perched water in different plateaus of the Cleaverville Formation, combining morphological and molecular data from mitochondrial and nuclear genes. We described two new species and genera (Anguillanella callawaensis gen. et sp. nov. and Muccanella cundalinensis gen. et sp. nov.), and two additional taxa are recognised using morphology and/or Automatic Barcode Gap Discovery and Poisson Tree Processes species delimitation methods. New genera and species result restricted to isolate perched aquifers on single plateaus and their distributions, phylogenetic relationships, and divergence time estimates support multiple vicariant events and ancient allopatric speciation.

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Section: De Grey River Bathynellidae Diversitysupporting

confidence: 65%

The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment

et al. 2019

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“…Darwinulid ostracods were identified only to family level but subsequent work showed that four species occur in the Pilbara (Schon et al 2010). Syncarids were mostly identifi ed only to genus but genera have been shown to consist of multiple species in the Kimberley and Yilgarn (Cho et al 2005;Guzik et al 2008) and this is also the case in the Pilbara. The four species of Atopobathynella illustrated in Figure 9 were not distinguished during the survey, despite possessing some distinctive characters, because of the poorly developed state of syncarid taxonomy in Western Australia at the time when survey samples were processed.…”

Section: Taxonomic Limitationsmentioning

confidence: 99%

“…Wilson and Ponder 1992;Karanovic, I. and Marmonier 2002;Cho et al 2005;Susac et al 2010) but, while there has been relatively little survey in the Kimberley and publications are mostly taxonomic, it appears to have a less well-developed fauna than the Pilbara and Yilgarn (Hancock and Bennison 2005;Bennelongia 2012c). Poorly developed stygofauna communities also occur in south-western Australia and the Nullarbor region.…”

Section: Global Signifi Cance Of Pilbara Faunamentioning

confidence: 99%

Pilbara stygofauna: deep groundwater of an arid landscape contains globally significant radiation of biodiversity

Halse¹,

Scanlon²,

Cocking³

et al. 2014

Rec West Aust Mus Sup

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-The Pilbara region was surveyed for stygofauna between 2002 and 2005 with the aims of setting nature conservation priorities in relation to stygofauna, improving the understanding of factors affecting invertebrate stygofauna distribution and sampling yields, and providing a framework for assessing stygofauna species and community signifi cance in the environmental impact assessment process.Approximately 350 species of stygofauna were collected during the survey and extrapolation suggests that 500-550 actually occur in the Pilbara, although taxonomic resolution among some groups of stygofauna is poor and species richness is likely to have been substantially underestimated. More than 50 species were found in a single bore. Even though species richness was underestimated, it is clear that the Pilbara is a globally important region for stygofauna, supporting species densities greater than anywhere other than the Dinaric karst of Europe. This is in part because of a remarkable radiation of candonid ostracods in the Pilbara. Ostracods are the dominant stygofaunal group in terms of both species richness and animal abundance. Together, ostracods, copepods, amphipods and oligochates comprised 77% of species and 96% of animals collected.Stygofauna were found in 72% of samples collected and 81% of wells sampled. The average sample (including those without stygofauna) contained 3.2 ± 0.1 species. A feature of the Pilbara is that stygofauna occur across most of the landscape, often where the depth to groundwater is considerable, although yields were low where depth to groundwater was >30 m. Another feature is high endemicity: on the basis of current taxonomy 98% of the stygobites and 83% of the other groundwater species occur only within the region. Few factors affecting stygofauna occurrence could be identifi ed, however. Numbers of specimens and species collected were positively related to well diameter and negatively related to depth to groundwater. Numbers of species declined in inland sub-regions, although variability within sub-regions was high.While a range of freshwater chemistries occurred, 79% of water samples were weakly saline and NaCl dominated. Profi ling and purging of wells suggested that water quality measurements refl ected aquifer conditions in most situations. Water chemistry appeared to have limited infl uence on stygofauna occurrence in the Pilbara. Geology also appeared to have little effect on stygofauna occurrence but this may have been the result of non-random siting of wells; there was a bias towards wells being in transmissive locations that were not necessarily typical of the geology in which each well occurred.No potential reserves for stygofauna are recommended in this paper but nine areas of high stygofauna richness were identifi ed, including the listed Ethel Gorge stygofauna community. Theoretical analysis of species ranges suggested that half of the species found only in the vicinity of development projects will have ranges less than 680 km 2 . Consequently, projects involving ext...

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“…Cho (2005), Cho et al (2005Cho et al ( , 2006aCho et al ( , 2006b), Cho and Humphreys (2010) Ostracoda Karanovic, I. Marmonier (2002, 2003), Karanovic (2003aKaranovic ( , 2003bKaranovic ( , 2004Karanovic ( , 2005aKaranovic ( , 2005bKaranovic ( , 2007) Copepoda Karanovic, T. Pesce and De Laurentiis (1996), Pesce et al (1996aPesce et al ( , 1996b, Karanovic et al (2001), Karanovic and Pesce (2002), Karanovic (2003Karanovic ( , 2004aKaranovic ( , 2004bKaranovic ( , 2005Karanovic ( , 2006 (1998) points (bores or caves).…”

Section: Methodology For Estimating Subterranean Faunal Diversitymentioning

confidence: 99%

VIEWPOINT. Is the Australian subterranean fauna uniquely diverse?

Guzik

Austin

Cooper

et al. 2010

Invert. Systematics

107

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Abstract. Australia was historically considered a poor prospect for subterranean fauna but, in reality, the continent holds a great variety of subterranean habitats, with associated faunas, found both in karst and non-karst environments. This paper critically examines the diversity of subterranean fauna in several key regions for the mostly arid western half of Australia. We aimed to document levels of species richness for major taxon groups and examine the degree of uniqueness of the fauna. We also wanted to compare the composition of these ecosystems, and their origins, with other regions of subterranean diversity world-wide. Using information on the number of 'described' and 'known' invertebrate species (recognised based on morphological and/or molecular data), we predict that the total subterranean fauna for the western half of the continent is 4140 species, of which~10% is described and 9% is 'known' but not yet described. The stygofauna, water beetles, ostracods and copepods have the largest number of described species, while arachnids dominate the described troglofauna. Conversely, copepods, water beetles and isopods are the poorest known groups with less than 20% described species, while hexapods (comprising mostly Collembola, Coleoptera, Blattodea and Hemiptera) are the least known of the troglofauna. Compared with other regions of the world, we consider the Australian subterranean fauna to be unique in its diversity compared with the northern hemisphere for three key reasons: the range and diversity of subterranean habitats is both extensive and novel; direct faunal links to ancient Pangaea and Gondwana are evident, emphasising their early biogeographic history; and Miocene aridification, rather than Pleistocene post-ice age driven diversification events

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A new genus and six new species of the Parabathynellidae (Bathynellacea, Syncarida) from the Kimberley region, Western Australia

Cited by 32 publications

References 15 publications

The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment

The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment

Pilbara stygofauna: deep groundwater of an arid landscape contains globally significant radiation of biodiversity

VIEWPOINT. Is the Australian subterranean fauna uniquely diverse?

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