Articoli di riviste: "Southwestern Australia"

1

McComb, A. J., e J. A. Davis. "Eutrophic waters of southwestern Australia". Fertilizer Research 36, n. 2 (1993): 105–14. http://dx.doi.org/10.1007/bf00747580.

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2

Bentley, Alison R., John F. Leslie, Edward C. Y. Liew, Lester W. Burgess e Brett A. Summerell. "Genetic Structure of Fusarium pseudograminearum Populations from the Australian Grain Belt". Phytopathology® 98, n. 2 (febbraio 2008): 250–55. http://dx.doi.org/10.1094/phyto-98-2-0250.

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Crown rot, caused by the fungus Fusarium pseudograminearum (teleomorph Gibberella coronicola) is a major disease of wheat in the Australian grain belt. However, there is little information available on the population structure of this pathogen. We measured genetic diversity as assessed with amplified fragment length polymorphism (AFLP) analysis within and between populations of F. pseudograminearum from northeastern, south central, and southwestern regions of the Australian grain belt. Amongst the 217 isolates, 176 haplotypes were identified and grouped into two main clusters. One cluster contained isolates from populations in northeastern Australia, and the other cluster contained isolates from populations in south central and southwestern Australia. The southern populations were distinguished from the northeastern populations by higher levels of population differentiation (Gst) between them and genetic identity amongst the regional populations. We hypothesize that the F. pseudograminearum populations from northeastern and southern Australia are independent, which could result from different founding events or from geographic isolation and the accumulation of genetic differences due to genetic drift and/or selection.

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3

CURRIE, DOUGLAS C., DOUGLAS A. CRAIG e JOHN K. MOULTON. "A new genus, Protaustrosimulium, for four species of Australian black flies (Diptera: Simuliidae)". Zootaxa 4521, n. 3 (14 novembre 2018): 301. http://dx.doi.org/10.11646/zootaxa.4521.3.1.

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Protaustrosimulium n. gen. is described for four species: two previously named species from southeastern Australia—Paracnephia pilfreyi (Davies & Györkös 1988) and Paracnephia terebrans (Tonnoir 1925)—plus two newly described ones from the southwestern-most corner of Western Australia—Prot. amphorum n. sp. and Prot. opscurum n. sp. Molecular and morphological data suggest a close relationship between members of the new genus and Austrosimulium Tonnoir 1925. Monophyly of Protaustrosimulium is supported mainly by characters of adult females, as two of the four species are known only in that life stage. Two species groups are recognized: the pilfreyi-group for Prot. pilfreyi and Prot. amphorum, and the terebrans-group for Prot. terebrans and Prot. opscurum. The constituent species in each group are distributed vicariously in southeastern and southwestern Australia—a common biogeographical pattern in Australian simuliids.

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4

Ayvazian, Suzanne G., Trevor P. Bastow, John S. Edmonds, Jason How e Gabrielle B. Nowara. "Stock structure of Australian herring (Arripis georgiana) in southwestern Australia". Fisheries Research 67, n. 1 (marzo 2004): 39–53. http://dx.doi.org/10.1016/j.fishres.2003.08.003.

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5

Beard, J. S. "Palaeodrainage and the geomorphic evolution of passive margins in Southwestern Australia". Zeitschrift für Geomorphologie 47, n. 3 (26 settembre 2003): 273–88. http://dx.doi.org/10.1127/zfg/47/2003/273.

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6

Lamont, Byron, e S. W. Connell. "Biogeography of Banksia in southwestern Australia". Journal of Biogeography 23, n. 3 (maggio 1996): 295–309. http://dx.doi.org/10.1046/j.1365-2699.1996.00027.x.

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7

Travers, A., M. J. Eliot, I. G. Eliot e M. Jendrzejczak. "Sheltered sandy beaches of southwestern Australia". Geological Society, London, Special Publications 346, n. 1 (2010): 23–42. http://dx.doi.org/10.1144/sp346.3.

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8

AHYONG, SHANE T. "Discovery of the sponge-associated caridean genus Paralebbeus in New Zealand and southeastern Australia: P. pegasus sp. nov. (Crustacea: Decapoda: Thoridae)". Zootaxa 4652, n. 2 (8 agosto 2019): 375–83. http://dx.doi.org/10.11646/zootaxa.4652.2.10.

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Deepwater sampling in New Zealand and southern Australian waters over the past two decades has significantly improved knowledge of all invertebrate groups, including decapod crustaceans. Thorid shrimps of the genus, Paralebbeus Bruce & Chace, 1986 are associated with deepwater hexactinellid sponges, with four species known to date from scattered localities in the southwestern Indian Ocean, northwestern Australia, Southeast Asia and the northwestern Pacific including Japan. Paralebbeus pegasus sp. nov. is described from New Zealand and southeastern Australia, representing the first record of the genus from the temperate southwestern Pacific. The new species of Paralebbeus is unique in the genus for having meral spines on pereopods 3–5. A key to the species of Paralebbeus and global distribution map are provided.

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9

BEARD, JENNIFER J., FRÉDÉRIC BEAULIEU, WAYNE KNEE e TETSUO GOTOH. "Morphological and molecular analyses of the six-spotted spider mite, Eotetranychus sexmaculatus (Riley) (Tetranychidae)—a pest more widespread than anticipated?" Zoosymposia 22 (30 novembre 2022): 192. http://dx.doi.org/10.11646/zoosymposia.22.1.125.

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A spider mite species initially identified as the six-spotted spider mite, Eotetranychus sexmaculatus (Riley), was recorded defoliating avocado trees, Persea americana Mill. (Lauraceae), in the southwestern parts of Western Australia. However, due to morphological inconsistencies in the descriptions of E. sexmaculatus, it has recently been suggested that these Australian specimens actually represented the native species E. queenslandicus Manson and that E. sexmaculatus was in fact not present in Australia (Seeman et al. 2017).

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10

HUTCHINSON, PAUL M., e PETER G. ALLSOPP. "Cavonus Sharp, 1875 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini: Pseudoryctina) in Western Australia with description of a new species and the female of Cavonus sculpturatus Blackburn, 1888". Zootaxa 4852, n. 4 (17 settembre 2020): 449–60. http://dx.doi.org/10.11646/zootaxa.4852.4.3.

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The species of Cavonus Sharp, 1875 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini: Pseudoryctina) from Western Australia, Australia are revised and Cavonus fovealacus new species is described from southwestern Western Australia. The female attributed to Epironastes nigrisetosus Carne, 1957 is redescribed as the female of Cavonus sculpturatus Blackburn, 1888, as is the male of C. sculpturatus. Cavonus latecavatus Dupuis, 2017, from near Menzies in southwestern Western Australia, is transferred to Carneoryctes Özdikmen, 2009 as Carneoryctes latecavatus (Dupuis), new combination. Habitat descriptions, a distributional map, and revised keys to accommodate the new species are presented.

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11

Turner, B. L., P. E. Hayes e E. Laliberté. "A climosequence of chronosequences in southwestern Australia". European Journal of Soil Science 69, n. 1 (gennaio 2018): 69–85. http://dx.doi.org/10.1111/ejss.12507.

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12

Petrone, Kevin C., Justin D. Hughes, Thomas G. Van Niel e Richard P. Silberstein. "Streamflow decline in southwestern Australia, 1950-2008". Geophysical Research Letters 37, n. 11 (giugno 2010): n/a. http://dx.doi.org/10.1029/2010gl043102.

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13

Yeates, J. S. "Soils and fertilizer use in southwestern Australia". Fertilizer Research 36, n. 2 (1993): 123–25. http://dx.doi.org/10.1007/bf00747582.

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14

Ball, P. J., e R. J. Gilkes. "The Mount Saddleback bauxite deposit, southwestern Australia". Chemical Geology 60, n. 1-4 (marzo 1987): 215–25. http://dx.doi.org/10.1016/0009-2541(87)90127-6.

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15

Bell, David T., Julie A. Plummer e Susan K. Taylor. "Seed germination ecology in southwestern Western Australia". Botanical Review 59, n. 1 (gennaio 1993): 24–73. http://dx.doi.org/10.1007/bf02856612.

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16

Vaghefi, Parshin, e Bofu Yu. "Validation of CLIGEN Parameter Adjustment Methods for Southeastern Australia and Southwestern Western Australia". Journal of Hydrometeorology 18, n. 7 (1 luglio 2017): 2011–28. http://dx.doi.org/10.1175/jhm-d-16-0237.1.

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Abstract Global climate models (GCMs) are usually used for future climate projections. Model output from GCMs needs to be downscaled and stochastic weather generators such as Climate Generator (CLIGEN) are tools to downscale GCM output and to produce synthetic weather sequences that are statistically similar to the observed weather data. Two methods of adjusting CLIGEN parameters were developed to reproduce precipitation sequences for southeastern Australia (SEA), where significant changes in annual precipitation had occurred, and for southwestern Western Australia (SWWA), where the precipitation has shown a significant decreasing trend since the 1920s. The adjustment methods have been validated using observed precipitation data for these regions. However, CLIGEN outputs ultimately will be used as input to other simulation models. The objective of this research was to further validate the methods of CLIGEN parameter adjustment using conceptual hydrological models to simulate streamflow and to compare the streamflow using observed and CLIGEN-generated precipitation data. Six precipitation sites from SEA and SWWA were selected and synthetic time series of daily precipitation were generated for these sites. Conceptual hydrological models, namely, the Australian Water Balance Model and SimHyd, were used for flow simulation and were calibrated using recorded daily streamflow data from six gauging stations in SEA and SWWA. Both monthly and annual streamflow show statistically similar patterns using observed and CLIGEN-generated precipitation data. The adjustment methods for CLIGEN parameters are further validated and can be used to reproduce the significant changes, both abrupt and gradually decreasing, in streamflow for these two climatically contrasting regions of Australia.

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17

NIELSEN, JØRGEN G., JOHN J. POGONOSKI e SHARON A. APPLEYARD. "Aphyonid-clade species of Australia (Teleostei, Bythitidae) with four species new to Australian waters and a new species of Barathronus". Zootaxa 4564, n. 2 (6 marzo 2019): 554. http://dx.doi.org/10.11646/zootaxa.4564.2.12.

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During voyages in 2017 off southern and southeastern Australia, the Australian Research Vessel Investigator deployed a series of demersal beam trawls to depths of around 5000 metres. Nineteen specimens of the rarely caught aphyonid-clade of the ophidiiform family Bythitidae, representing five species, were caught. Four of these are new to Australian waters: Barathronus pacificus Nielsen and Eagle, 1974 known from the northeastern and southwestern Pacific Ocean, Paraphyonus bolini (Nielsen, 1974) known from the western Indian and western Pacific Oceans, Paraphyonus rassi (Nielsen, 1975) known from the Atlantic Ocean and Sciadonus pedicellaris Garman, 1899, known from the northeastern Atlantic and northeastern and southwestern Pacific Oceans. Also included are Aphyonus gelatinosus Günther, 1878 known from all oceans including ten specimens from Australian waters, Barathronus maculatus Shcherbachev, 1976 known from South Africa to the westernmost Pacific including 13 specimens from Australian waters, Sciadonus longiventralis Nielsen, 2018 known from the holotype collected off New South Wales and finally Barathronus algrahami n. sp. known from the holotype caught off South Australia and four paratypes from off Taiwan and northern Philippines. Close examination of specimens collected during recent voyages combined with recent and ongoing studies by the first author and DNA COI barcoding analysis enabled an assessment of the aphyonid-clade species hitherto recorded from Australian waters. An identification key to the eight aphyonid clade species known from Australian waters is provided.

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18

AHYONG, SHANE T., e CAROLINE A. FARRELLY. "First Australian records of Ethusina (Crustacea: Decapoda: Ethusidae) and additional records from New Zealand". Zootaxa 4486, n. 2 (27 settembre 2018): 161. http://dx.doi.org/10.11646/zootaxa.4486.2.5.

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Deep water ethusid crabs, genus Ethusina, are confirmed for the first time from Australia, with additional distribution records from New Zealand waters. Prior to the present study, Ethusina was reported from Australia on the basis of a single unidentified species from southwestern Australia. Four species are reported herein: Ethusina castro Ahyong, 2008, E. ciliacirrata Castro, 2005, E. robusta (Miers, 1886), and E. rowdeni Ahyong, 2008. Ethusina castro, previously known only from the female holotype from northern New Zealand is reported for the first time from eastern Australia, the Lord Howe Rise and Monowai Caldera, including the first known males. Ethusina ciliacirrata, described from Vanuatu, is confirmed from the Coral Sea and southwestern Australia. Ethusina rowdeni, from New Zealand, and the widespread E. robusta are recorded for the first time from Australia.

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19

Stamation, K., M. Watson, P. Moloney, C. Charlton e J. Bannister. "Population estimate and rate of increase of southern right whales Eubalaena australis in southeastern Australia". Endangered Species Research 41 (30 aprile 2020): 373–83. http://dx.doi.org/10.3354/esr01031.

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In Australian waters, southern right whales Eubalaena australis form 2 genetically distinct populations that have shown contrasting patterns of recovery since whaling ceased: a western population in South Australia and Western Australia and an eastern population in southeastern Australia (Tasmania, Victoria and New South Wales). Here, we provide an abundance estimate derived from a breeding female superpopulation mark-recapture model for the southeastern southern right whale population. The population comprises 268 individuals (68 breeding females) and has increased at a rate of 4.7% per annum between 1996 and 2017. There has been no significant change in the annual abundance of mother-calf pairs sighted at the only calving ground (Logans Beach in Victoria) over the last 3 decades. The total number of southern right whales (i.e. all adults and calves) using the southeastern Australian coastline has increased by 7% since 1985. Unlike the population estimate (which was restricted to breeding females sighted prior to the post-breeding southward migration), this estimate is likely to include transiting whales from the southwestern population. The theoretical population model predicts 19 breeding females at Logans Beach in 2018 and 28 in 2028; the actual number of breeding females, as of 2018, is 14. This study provides the first complete estimate of population size and rate of increase of southern right whales along the southeastern Australian coastline. This knowledge is critical for assessing population status and recovery of southern right whales in Australia. It provides a basis for monitoring persistence and responses of the population to environmental stressors.

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20

Turney, Chris S. M., Michael I. Bird, L. Keith Fifield, Richard G. Roberts, Mike Smith, Charles E. Dortch, Rainer Grün et al. "Early Human Occupation at Devil's Lair, Southwestern Australia 50,000 Years Ago". Quaternary Research 55, n. 1 (gennaio 2001): 3–13. http://dx.doi.org/10.1006/qres.2000.2195.

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AbstractNew dating confirms that people occupied the Australian continent before the earliest time inferred from conventional radiocarbon analysis. Many of the new ages were obtained by accelerator mass spectrometry 14C dating after an acid–base–acid pretreatment with bulk combustion (ABA-BC) or after a newly developed acid–base–wet oxidation pretreatment with stepped combustion (ABOX-SC). The samples (charcoal) came from the earliest occupation levels of the Devil's Lair site in southwestern Western Australia. Initial occupation of this site was previously dated 35,000 14C yr B.P. Whereas the ABA-BC ages are indistinguishable from background beyond 42,000 14C yr B.P., the ABOX-SC ages are in stratigraphic order to ∼55,000 14C yr B.P. The ABOX-SC chronology suggests that people were in the area by 48,000 cal yr B.P. Optically stimulated luminescence (OSL), electron spin resonance (ESR) ages, U-series dating of flowstones, and 14C dating of emu eggshell carbonate are in agreement with the ABOX-SC 14C chronology. These results, based on four independent techniques, reinforce arguments for early colonization of the Australian continent.

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21

Bruce, NL, e LRG Cannon. "Ascaridoid nematodes from sharks from Australia and the Solomon Islands, southwestern Pacific Ocean". Invertebrate Systematics 4, n. 4 (1990): 763. http://dx.doi.org/10.1071/it9900763.

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Genera and species of ascaridoid nematodes are recorded from Australian and Solomon Island sharks. The genera represented are Acanthocheilus (Acanthocheilidae), Terranova and Pulchrascaris (Ascarididae). Remarks are given on Acanthocheilus australis. The genus Terranova is rediagnosed and descriptions are given for Terranova galeocerdonis, T. pristis and T. scoliodontis, with descriptive notes for T. ginglymostomae. Description is given for P. chiloscylii and notes for Pulchrascaris sp. Keys are provided for the Australian genera of Ascaridoidea from fish hosts and to the species of Terranova recovered from sharks.

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22

Phillips, J. A. "Systematics of the Australian species of Dictyopteris (Dictyotales, Phaeophyceae)". Australian Systematic Botany 13, n. 2 (2000): 283. http://dx.doi.org/10.1071/sb99002.

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Eleven species of Dictyopteris are recognised for Australia. The tropical species D. australis (Sonder) Askenasy, D. deliculata Lamouroux, D. plagiogramma (Montagne) Vickers, D. repens (Okamura) Børgesen, D. serrata (Areschoug) Hoyt and D. woodwardia (R.Brown ex Turner) C.Agardh are recorded for warmer coasts, although isolated populations of D. australis occur in the Gulfs region of South Australia. Dictyopteris acrostichoides (J.Agardh) Bornet and D. crassinervia (Zanardini) Schmidt are endemic to eastern Australia, with D. acrostichoides also extending to the eastern end of the southern coast. Dictyopteris gracilis Womersley and D. muelleri (Sonder) Reinbold occur on temperate southwestern and southern coasts. The west coast species Dictyopteris secundispiralis J.A.Phillips sp. nov. is described, and D. nigricans Womersley is reduced to a taxonomic synonym ofD. muelleri. Detailed comparative studies undertaken on these species have identified several new taxonomically-informative characters useful for generic circumscription and species discrimination. Thallus branches which have a cortical layer composed of large cuboidal cells and reproductive organs scattered in fertile zones are additional characters which characterise the genus. Australian species of Dictyopteris are now well defined by differences in several distinctive vegetative and reproductive characters such as thallus morphology, blade cell layer number, structure of the thallus apex, presence of marginal teeth and lateral veins, distribution and structure of hair bundles, sporangia, oogonia and antheridial sori.

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23

Nürnberg, Dirk, Akintunde Kayode, Karl J. F. Meier e Cyrus Karas. "Leeuwin Current dynamics over the last 60 kyr – relation to Australian ecosystem and Southern Ocean change". Climate of the Past 18, n. 11 (15 novembre 2022): 2483–507. http://dx.doi.org/10.5194/cp-18-2483-2022.

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Abstract. The Leeuwin Current, flowing southward along the western coast of Australia, is an important conduit for the poleward heat transport and inter-ocean water exchange between the tropical and the subantarctic ocean areas. Its past development and its relationship to Southern Ocean change and Australian ecosystem response is, however, largely unknown. Here we reconstruct sea surface and thermocline temperatures and salinities from foraminiferal-based Mg/Ca and stable oxygen isotopes from areas offshore of southwestern and southeastern Australia, reflecting the Leeuwin Current dynamics over the last 60 kyr. Their variability resembles the biomass burning development in Australasia from ∼60–20 ka BP, implying that climate-modulated changes related to the Leeuwin Current most likely affected Australian vegetational and fire regimes. Particularly during ∼60–43 ka BP, the warmest thermocline temperatures point to a strongly developed Leeuwin Current during Antarctic cool periods when the Antarctic Circumpolar Current (ACC) weakened. The pronounced centennial-scale variations in Leeuwin Current strength appear to be in line with the migrations of the Southern Hemisphere frontal system and are captured by prominent changes in the Australian megafauna biomass. We argue that the concerted action of a rapidly changing Leeuwin Current, the ecosystem response in Australia, and human interference since ∼50 BP enhanced the ecological stress on the Australian megafauna until its extinction at ∼43 ka BP. While being weakest during the Last Glacial Maximum (LGM), the deglacial Leeuwin Current intensified at times of poleward migrations of the Subtropical Front (STF). During the Holocene, the thermocline off southern Australia was considerably shallower compared to the short-term glacial and deglacial periods of Leeuwin Current intensification.

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24

Newsome, J. C. "Pollen–vegetation relationships in semi-arid southwestern Australia". Review of Palaeobotany and Palynology 106, n. 1-2 (giugno 1999): 103–19. http://dx.doi.org/10.1016/s0034-6667(99)00004-4.

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Dentith, M. C., e W. E. Featherstone. "Controls on intra-plate seismicity in southwestern Australia". Tectonophysics 376, n. 3-4 (dicembre 2003): 167–84. http://dx.doi.org/10.1016/j.tecto.2003.10.002.

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26

Kuo, John, e Hugh Kirkman. "Halophila decipiens Ostenfeld in estuaries of southwestern Australia". Aquatic Botany 51, n. 3-4 (agosto 1995): 335–40. http://dx.doi.org/10.1016/0304-3770(95)00468-f.

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Raut, Bhupendra A., Michael J. Reeder e Christian Jakob. "Trends in CMIP5 Rainfall Patterns over Southwestern Australia". Journal of Climate 30, n. 5 (16 febbraio 2017): 1779–88. http://dx.doi.org/10.1175/jcli-d-16-0584.1.

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Abstract Previous work has shown that the sharp fall in winter rainfall over coastal southwestern Australia in the 1970s was mainly due to a fall in the frequency of fronts; the gradual reduction in rainfall since the late 1990s was due to a reduction in the number of light-rain days; and the increased inland summer rainfall in the 1970s was due to an increased number of easterly troughs. The current paper extends this earlier work by identifying the rainfall patterns in the region in 14 CMIP5 models for the period 1980–2005 and by calculating how these patterns are projected to change in the twenty-first century. The patterns are identified using k-means clustering of the rainfall, which are validated against observed rainfall clusters. Although the agreement between the models and the observation is generally good, the models underestimate the frequency of raining fronts. In both representative concentration pathway 4.5 and 8.5 (RCP4.5 and RCP8.5) scenarios the number of dry days increases significantly at the expense of light-rain days and frontal rainfall. However, these trends are twice as large in the RCP8.5 scenario as in the RCP4.5 scenario. The reduction in the rainfall from the historical period to the second half of the twenty-first century is produced mainly by a reduction in both the frequency and intensity of light rain and a reduction in the frequency of fronts in the westerlies.

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28

Dortch, Charles. "Prehistory Down Under: archaeological investigations of submerged Aboriginal sites at Lake Jasper, Western Australia". Antiquity 71, n. 271 (marzo 1997): 116–23. http://dx.doi.org/10.1017/s0003598x0008460x.

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Much of Australian prehistory lies under water. Although confined to the continent's extreme southwestern corner, field studies described in this report show that this submerged prehistoric component is very real, with numerous archaeological sites and former land surfaces awaiting investigation on the floors of Australia's lakes, rivers and estuaries, and on its submerged continental margins.

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Heinzeller, Dominikus, Wolfgang Junkermann e Harald Kunstmann. "Anthropogenic Aerosol Emissions and Rainfall Decline in Southwestern Australia: Coincidence or Causality?" Journal of Climate 29, n. 23 (11 novembre 2016): 8471–93. http://dx.doi.org/10.1175/jcli-d-16-0082.1.

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Abstract It is commonly understood that the observed decline in precipitation in southwestern Australia during the twentieth century is caused by anthropogenic factors. Candidates therefore are changes to large-scale atmospheric circulations due to global warming, extensive deforestation, and anthropogenic aerosol emissions—all of which are effective on different spatial and temporal scales. This contribution focuses on the role of rapidly rising aerosol emissions from anthropogenic sources in southwestern Australia around 1970. An analysis of historical long-term rainfall data of the Bureau of Meteorology shows that southwestern Australia as a whole experienced a gradual decline in precipitation over the twentieth century. However, on smaller scales and for the particular example of the Perth catchment area, a sudden drop in precipitation around 1970 is apparent. Modeling experiments at a convection-resolving resolution of 3.3 km using the Weather Research and Forecasting (WRF) Model version 3.6.1 with the aerosol-aware Thompson–Eidhammer microphysics scheme are conducted for the period 1970–74. A comparison of four runs with different prescribed aerosol emissions and without aerosol effects demonstrates that tripling the pre-1960s atmospheric CCN and IN concentrations can suppress precipitation by 2%–9%, depending on the area and the season. This suggests that a combination of all three processes is required to account for the gradual decline in rainfall seen for greater southwestern Australia and for the sudden drop observed in areas along the west coast in the 1970s: changing atmospheric circulations, deforestation, and anthropogenic aerosol emissions.

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Buckley, Sean J., Fabricius M. C. B. Domingos, Catherine R. M. Attard, Chris J. Brauer, Jonathan Sandoval-Castillo, Ryan Lodge, Peter J. Unmack e Luciano B. Beheregaray. "Phylogenomic history of enigmatic pygmy perches: implications for biogeography, taxonomy and conservation". Royal Society Open Science 5, n. 6 (giugno 2018): 172125. http://dx.doi.org/10.1098/rsos.172125.

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Pygmy perches (Percichthyidae) are a group of poorly dispersing freshwater fishes that have a puzzling biogeographic disjunction across southern Australia. Current understanding of pygmy perch phylogenetic relationships suggests past east–west migrations across a vast expanse of now arid habitat in central southern Australia, a region lacking contemporary rivers. Pygmy perches also represent a threatened group with confusing taxonomy and potentially cryptic species diversity. Here, we present the first study of the evolutionary history of pygmy perches based on genome-wide information. Data from 13 991 ddRAD loci and a concatenated sequence of 1 075 734 bp were generated for all currently described and potentially cryptic species. Phylogenetic relationships, biogeographic history and cryptic diversification were inferred using a framework that combines phylogenomics, species delimitation and estimation of divergence times. The genome-wide phylogeny clarified the biogeographic history of pygmy perches, demonstrating multiple east–west events of divergence within the group across the Australian continent. These results also resolved discordance between nuclear and mitochondrial data from a previous study. In addition, we propose three cryptic species within a southwestern species complex. The finding of potentially new species demonstrates that pygmy perches may be even more susceptible to ecological and demographic threats than previously thought. Our results have substantial implications for improving conservation legislation of pygmy perch lineages, especially in southwestern Western Australia.

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Gergis, Joëlle, Zak Baillie, Stefan Ingallina, Linden Ashcroft e Tessa Ellwood. "A historical climate dataset for southwestern Australia, 1830–1875". International Journal of Climatology 41, n. 10 (28 marzo 2021): 4898–919. http://dx.doi.org/10.1002/joc.7105.

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Beckley, Lynnath E. "Profile of Recreational Anglers Visiting Rottnest Island, Southwestern Australia". Tourism in Marine Environments 6, n. 1 (1 febbraio 2010): 1–10. http://dx.doi.org/10.3727/154427309x12602327200181.

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Myers, John S. "Precambrian tectonic evolution of part of Gondwana, southwestern Australia". Geology 18, n. 6 (1990): 537. http://dx.doi.org/10.1130/0091-7613(1990)018<0537:pteopo>2.3.co;2.

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34

ABBOTT, I. "Biogeography of grasses (Poaceae) on islands of southwestern Australia". Austral Ecology 17, n. 3 (settembre 1992): 289–96. http://dx.doi.org/10.1111/j.1442-9993.1992.tb00810.x.

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35

Hufford, Gwyneth E., Michael S. McCartney e Kathleen A. Donohue. "Northern boundary currents and adjacent recirculations off southwestern Australia". Geophysical Research Letters 24, n. 22 (15 novembre 1997): 2797–800. http://dx.doi.org/10.1029/97gl02278.

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36

HOBBS, RP, e LE TWIGG. "Coccidia (Eimeria spp) of wild rabbits in southwestern Australia". Australian Veterinary Journal 76, n. 3 (marzo 1998): 209–10. http://dx.doi.org/10.1111/j.1751-0813.1998.tb10131.x.

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37

Latta, R. A., P. S. Cocks e C. Matthews. "Lucerne pastures to sustain agricultural production in southwestern Australia". Agricultural Water Management 53, n. 1-3 (febbraio 2002): 99–109. http://dx.doi.org/10.1016/s0378-3774(01)00158-5.

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38

Dodson, J. R., e Weijian Zhou. "Radiocarbon Dates from a Holocene Deposit in Southwestern Australia". Radiocarbon 42, n. 2 (2000): 229–34. http://dx.doi.org/10.1017/s0033822200059038.

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Abstract (sommario):

A radiocarbon chronology has been developed using shell, bulk peat, and paired charcoal and pollen preparations from a peat and clay sequence in southwestern Australia. The results indicate the sequence is of Holocene age, and the mid-Holocene was a period of rapid sediment deposition. The earliest record is based on Bothriembyron sp. snail shell and there is a strong indication that the deposit had a stratigraphic hiatus between 9600 and 4700 BP. Modern shell of the snail has no ancient reservoir effect. The bulk peat ages were a little younger than associated AMS determinations on hand-picked charcoal and residues from pollen preparations. As a group, paired charcoal and pollen based dates were indistinguishable in age. This implies that the sedimentary charcoal shows no significant storage and transport time in the catchment before deposition. This is important when interpreting pollen records and sedimentary charcoal to reconstruct fire and vegetation dynamics and inter-relationships.

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39

Myers, J. S., e M. E. Barley. "Proterozoic tectonic framework and metal deposits of southwestern Australia". Precambrian Research 58, n. 1-4 (ottobre 1992): 345–54. http://dx.doi.org/10.1016/0301-9268(92)90124-7.

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40

Lefroy, Edward, e Torbjörn Rydberg. "Emergy evaluation of three cropping systems in southwestern Australia". Ecological Modelling 161, n. 3 (marzo 2003): 195–211. http://dx.doi.org/10.1016/s0304-3800(02)00341-1.

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41

Hill, Robert S., e Hillary E. Merrifield. "An Early Tertiary macroflora from West Dale, southwestern Australia". Alcheringa: An Australasian Journal of Palaeontology 17, n. 4 (gennaio 1993): 285–326. http://dx.doi.org/10.1080/03115519308619596.

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42

Hodgkin, E. P., e B. H. Hamilton. "Fertilizers and eutrophication in southwestern Australia: Setting the scene". Fertilizer Research 36, n. 2 (1993): 95–103. http://dx.doi.org/10.1007/bf00747579.

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43

Nagano, Yuki, Hisashi Imamura e Mamoru Yabe. "A new ghost flathead (Scorpaeniformes: Hoplichthyidae) from southwestern Australia". Ichthyological Research 62, n. 3 (9 ottobre 2014): 245–52. http://dx.doi.org/10.1007/s10228-014-0432-9.

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44

Williams, Marvin C., e Robert W. Lichtwardt. "A new monotypic fungal genus, Allantomyces, and a new species of Legeriomyces (Trichomycetes, Harpellales) in the hindgut of a Western Australian mayfly nymph (Tasmanocoenis sp.)". Canadian Journal of Botany 71, n. 8 (1 agosto 1993): 1109–13. http://dx.doi.org/10.1139/b93-130.

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Abstract (sommario):

Allantomyces caenidarum sp.nov., a trichomycete fungus that lives in the hindgut of Tasmanocoenis sp. (Caenidae) mayfly nymphs in southwestern Western Australian streams, is described. In addition to normal trichospores and zygospores that serve to reinfest other nymphs, A. caenidarum also produces what may be modified trichospores that serve to increase gut infestation endogenously. The same species of mayfly also harbored a new species, Legeriomyces raus, which belongs to a genus previously known only from North America and Europe. Key words: Caenidae, Allantomyces, Australia, Tasmanocoenis, Trichomycetes, Legeriomyces.

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45

WIBOWO, KUNTO, e HIROYUKI MOTOMURA. "Review of the Scorpaena papillosa species complex (Teleostei: Scorpaenidae) with description of a new species from southwestern Australia". Zootaxa 4852, n. 5 (18 settembre 2020): 527–46. http://dx.doi.org/10.11646/zootaxa.4852.5.2.

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A taxonomic review of the Scorpaena papillosa species complex, defined here as having 10 dorsal-fin soft rays, coronal spines, and two upwardly directed spines on the lacrimal bone, resulted in the recognition of two species and two subspecies, Scorpaena papillosa (Schneider & Forster, 1801) including two subspecies, i.e., S. papillosa papillosa (New Zealand) and S. papillosa ergastulorum Richardson, 1842a (southeastern Australia), and S. vesperalis n. sp. (southwestern Australia). Scorpaena p. papillosa and S. p. ergastulorum, are redescribed, with designation of a neotype for S. p. papillosa. Scorpaena vesperalis n. sp., described from coastal waters off southwestern Western Australia on the basis of 57 specimens, is characterized as follows: pectoral-fin rays 14–16; longitudinal scale rows 37–41; body depth 32.3–39.5 % of SL; upper-jaw length 19.6–22.5 % of SL; maxilla depth 5.7–7.3 % of SL; postorbital length 18.2–21.3 % of SL; least distance between interorbital ridges 1.4–2.7 % of SL; 1st anal-fin spine length 7.2–10.0 % of SL; anterior lacrimal spine simple, without additional small spinous points on its posterior margin; a single united pore behind the lower jaw symphysial knob; relatively large supraocular tentacle; all fins of preserved specimens usually uniformly whitish to translucent; and small body size (maximum recorded length 67.6 mm SL). The new species is likely endemic to southwestern Australia. Morphological ontogenetic changes in the relative lengths of some body proportions in the three taxa are also discussed.

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46

Metzger, Marco E., J. Wakoli Wekesa, Susanne Kluh, Kenn K. Fujioka, Robert Saviskas, Aaron Arugay, Nathan McConnell et al. "Detection and Establishment of Aedes notoscriptus (Diptera: Culicidae) Mosquitoes in Southern California, United States". Journal of Medical Entomology 59, n. 1 (7 ottobre 2021): 67–77. http://dx.doi.org/10.1093/jme/tjab165.

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Abstract Aedes notoscriptus (Skuse), the Australian backyard mosquito, is a pestiferous daytime-biting species native to Australia and the surrounding southwestern Pacific region. It is suspected to play a role in the transmission of several arboviruses and is considered a competent vector of dog heartworm, Dirofilaria immitis (Leidy). This highly adaptable mosquito thrives in natural and artificial water-holding containers in both forested and urbanized areas, from tropical to temperate climates, and has benefitted from a close association with humans, increasing in abundance within its native range. It invaded and successfully established in New Zealand as well as in previously unoccupied temperate and arid regions of Australia. Ae. notoscriptus was discovered in Los Angeles County, CA, in 2014, marking the first time this species had been found outside the southwestern Pacific region. By the end of 2019, immature and adult mosquitoes had been collected from 364 unique locations within 44 cities spanning three southern California counties. The discovery, establishment, and rapid spread of this species in urban areas may signal the global movement and advent of a new invasive container-inhabiting species. The biting nuisance, public health, and veterinary health implications associated with the invasion of southern California by this mosquito are discussed.

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47

Dean, J. C. "Two new genera of Leptophlebiidae (Insecta: Ephemeroptera) from southwestern Australia". Memoirs of the Museum of Victoria 48, n. 2 (1987): 91–100. http://dx.doi.org/10.24199/j.mmv.1987.48.22.

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48

Lullfitz, Alison, Joe Dortch, StephenD Hopper, Carol Pettersen, Ron(Doc) Reynolds e David Guilfoyle. "Human Niche Construction: Noongar Evidence in Pre-colonial Southwestern Australia". Conservation and Society 15, n. 2 (2017): 201. http://dx.doi.org/10.4103/cs.cs_16_75.

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49

Ruan, Huada D., e Robert J. Gilkes. "Phosphorus Accumulation in Farm Ponds and Dams in Southwestern Australia". Journal of Environmental Quality 29, n. 6 (novembre 2000): 1875–81. http://dx.doi.org/10.2134/jeq2000.00472425002900060021x.

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50

Dortch, J. "Pleistocene Radiocarbon Dates For Hearths At Tunnel Cave, Southwestern Australia". Australian Archaeology 38, n. 1 (gennaio 1994): 45–46. http://dx.doi.org/10.1080/03122417.1994.11681519.

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