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87 results for “north-western Australia”
Figure 3 in Longiflagrum amphibium, a new estuarine apseudomorph tanaid (Crustacea, Peracarida) from north-western Australia
Figure 3. Longiflagrum amphibium sp. n. Paratype female. A pereopod-1 B pereopod-2 C pereopod-3 D pereopod-4 E pereopod-5 F pereopod-6 G pleopod H uropod. Scale line = 0.1 mm
Figure 2 in Longiflagrum amphibium, a new estuarine apseudomorph tanaid (Crustacea, Peracarida) from north-western Australia
Figure 2. Longiflagrum amphibium sp. n. Paratype female. A antennule B antenna C mandible C' pars molaris D labium E maxilla F maxillule F' palp of maxillule G maxiliped G' maxilipedal endite H cheliped H' detail of fixed finer. Male I cheliped. Scale line = 0.1 mm for A, B, D, F, G', H, I and 0.01 mm for C, C΄, E, G.
Figure 1 in Longiflagrum amphibium, a new estuarine apseudomorph tanaid (Crustacea, Peracarida) from north-western Australia
Figure 1. Longiflagrum amphibium sp. n. Holotype female. A body dorsal view B body lateral view. Scale line = 1 mm.
Fig. 2 in New species of Boreohesperus (Diplopoda, Polydesmida, Paradoxosomatidae) from north-western Australia
Fig. 2. Boreohesperus alcyonis sp. nov., holotype, ♂ (WAM T108780). A. Habitus, lateral view. B. Habitus, dorsal view. C–F. Left gonopod. C. Posterior view. D. Anterior view. E. Medial view. F. Lateral view. Abbreviations: bs = solenomere base; C = coxa; F = femorite; NSB = non-seminiferous branch; nsbp = non-seminiferous branch process; PF = prefemur; pp = posterior process; S = solenomere. Scale bars: A = 2 mm; B = 1 mm; C–F = 0.5 mm.
Fig. 5 in New species of Boreohesperus (Diplopoda, Polydesmida, Paradoxosomatidae) from north-western Australia
Fig. 5. Map of the Kimberley region of north-western Australia showing the distributions of the three new species of Boreohesperus Shear, 1992.
Fig. 1 in New species of Boreohesperus (Diplopoda, Polydesmida, Paradoxosomatidae) from north-western Australia
Fig. 1. Posterior view of left gonopod of Boreohesperus spp. A. Boreohesperus capensis Shear, 1992. B. B. vascellus sp. nov. Scale bars: 0.5 mm.
Figure 1. Hoplostethus ravurictus n in A New Species of the Roughy Genus Hoplostethus (Trachichthyidae) off North-western Australia.
Figure 1. Hoplostethus ravurictus n. sp., holotype NMV A29668-002, 123 mm SL, Western Australia, Hedland, 407–404 m.
Figure 2. Hoplostethus ravurictus n in A New Species of the Roughy Genus Hoplostethus (Trachichthyidae) off North-western Australia.
Figure 2. Hoplostethus ravurictus n. sp.: (A) holotype, NMV A29668-002, 123 mm SL; (B) abdominal scutes; (C) anterior lateral line scale; (D) posterior lateral line scale; and, (E) scale from just below dorsal fin base. Scales from NTM S12734-005, paratype, 141 mm SL. Bar associated with scales equals 5 mm.
Figure 3 in Chirostylidae from north-western Australia (Crustacea: Decapoda: Anomura)
Figure 3. Uroptychus oxymerus sp. nov., holotype male (+6.5 mm), NMV J21046. A, dorsum. B, carapace, right lateral view. C, right cheliped, proximal mesial view. D, left antenna, ventral view. E, right maxilliped 3, lateral view. F, crista dentata, right. G, sternal plastron. H, telson. Scale A–C = 2.0 mm, D–H = 1.0 mm.
Figure 2. A–I in Chirostylidae from north-western Australia (Crustacea: Decapoda: Anomura)
Figure 2. A–I, Uroptychus nigricapillis Alcock, 1901, ovigerous female (11.0 mm), AM P67832. J, Uroptychus gracilimanus (Henderson, 1885), female (9.4 mm), AM P65825. A, dorsum. B, carapace, right lateral view. C, cheliped, proximal ventral view. D, cheliped, distal ventral view. E, right antenna, ventral view. F, right maxilliped 3, lateral view. G, crista dentata, right. H, sternal plastron. I, telson. J, left pereopod 2, dactylus and distal propodus. Scale A–D = 3.0 mm, E–F = 0.7 mm, G–J = 1.5 mm.
Figure 1. Uroptychus joloensis Van Dam, 1939 in Chirostylidae from north-western Australia (Crustacea: Decapoda: Anomura)
Figure 1. Uroptychus joloensis Van Dam, 1939, ovigerous female (7.8 mm), NMV J21046. A, dorsum. B, anterior carapace, right lateral view. C, right cheliped, proximal mesial view. D, right antenna, ventral view. E, right maxilliped 3, lateral view. F, crista dentata, right. G, sternal plastron. H, telson. Scale A–C, G = 3.0 mm, D–F = 0.7 mm, H = 1.5 mm.
FIGURE 10 in Palaeoecology and sea level changes: Decline of mammal species richness during late Quaternary island formation in the Montebello Islands, north-western Australia
FIGURE 10. Number of species identified from each spit in Morgan's Cave, illustrating the increasing loss of species from spits four to one.
FIGURE 9 in Palaeoecology and sea level changes: Decline of mammal species richness during late Quaternary island formation in the Montebello Islands, north-western Australia
FIGURE 9. Species-area plot for islands on the north-west continental shelf (filled circles) (data from Abbott and Burbidge, 1995), and spits one to seven in Morgan's Cave (open circles).
FIGURE 8 in Palaeoecology and sea level changes: Decline of mammal species richness during late Quaternary island formation in the Montebello Islands, north-western Australia
FIGURE 8. Log non-volant species vs log area plot for the north-west islands (filled circles) and the super-island at sea level 10 m below present (open circle).
FIGURE 6 in Palaeoecology and sea level changes: Decline of mammal species richness during late Quaternary island formation in the Montebello Islands, north-western Australia
FIGURE 6. Species accumulation curve for Morgan's Cave, showing increasing species with increased sampling effort (cumulative NISP). Further sampling effort could have yielded more species.
Large-scale eDNA metabarcoding survey reveals marine biogeographic break and transitions over tropical north-western Australia
<p><b>Aim:</b> Environmental DNA (eDNA) metabarcoding has demonstrated its applicability as a highly sensitive biomonitoring tool across small spatial and temporal scales in marine ecosystems. However, it has rarely been tested across large spatial scales, or biogeographical barriers. Here, we scale up marine eDNA metabarcoding, test its ability to detect a major marine biogeographic break, and evaluate its use as a regional biomonitoring tool in Australia.</p> <p><b>Location:</b> North-western Australia (NWA)</p> <p><b>Methods:</b> We applied metabarcoding assays targeting the mitochondrial 16S rRNA and CO1 genes to 284 surface seawater eDNA samples collected from 71 mid-shelf, inshore, coastal and nearshore estuarine sites over 700 km of the NWA coastline.</p> <p><b>Results:</b> Metabarcoding detected a wide range of bony fish (404 taxa), elasmobranchs (44) and aquatic reptiles (5). We detected bioregional and depth differentiation within inshore bony fish communities. These findings support the presence of a marine biogeographic break, which is purported to occur in the vicinity of Cape Leveque, demarcating the border between the Kimberley and Canning bioregions. Inshore bony fish and elasmobranch communities, as well as coastal bony assemblages, were additionally found to differ between the South and North Kimberley regions <span><span>suggesting</span></span> previously unrecognised subregional differentiation among these taxa. The overall compositional data has been used to update distribution information for a number of endangered, elusive and data-deficient taxa, including sawfish (family: Pristidae), northern river shark (<i>Glyphis garricki</i>) and wedgefish (genus: <i>Rhynchobatus</i>).</p> <p><b>Main conclusions</b>: eDNA metabarcoding demonstrated a high level of sensitivity that was able to discern fine-scale patterns across the large-scale, remote and oceanographically complex region of North-western Australia. Importantly, this study highlights the potential of integrating broad-scale eDNA metabarcoding alongside other baseline surveys and long-term monitoring approaches, which are crucial for the sustainable management and conservation of marine biodiversity in this unique marine region.</p>
Data from: The Kimberley, north-western Australia, as a cradle of evolution and endemic biodiversity: an example using Grunters (Terapontidae)
Aim: To test two prominent, alternate hypotheses that provide explanations for the great accumulation of endemic species in the Kimberley bioregion in north-western Australia, using an extensively sampled, region wide phylogeny of northern Australia's most speciose freshwater fish family, Terapontidae. Specifically, we test whether the Kimberley may act as (1) a "museum" accumulating taxa and endemic species over time or (2) a "cradle" of more recent diversification and neoendemism. Location: The Australian monsoonal tropics Taxon: Grunters (Terapontidae) Methods: We obtained a robust and well supported Bayesian phylogeny for the family using DNA sequences from mtDNA and nuclear gene regions. We performed molecular phylogenetic analyses using species tree methods including molecular dating analysis, ancestral range reconstruction, and diversification analysis. Results: Based on our phylogeny, the combined molecular clock estimates and likelihood-based historical biogeographic reconstructions suggest that terapontids recently transitioned into the Kimberley from the east during the late-Miocene. We found that 80% of Kimberley terapontids diversified within the Kimberley in the last 3 Ma. Further, diversification analyses identified a single significant shift in diversification rates ~1.4 Ma that corresponds with a change in global climate midway through the Pleistocene that was predominantly driven by speciation in the Kimberley. Main Conclusions: The weight of evidence suggests that the Kimberley has been a "cradle" of evolution for Terapontidae, rather than a "museum". Our analysis provides strong evidence for a geologically recent transition of terapontids into the Kimberley from regions to the east during the late Miocene followed by a significant increase in speciation rates during the Pleistocene, driven by speciation in the Kimberley. The results provide important insight into the evolutionary and biogeographical processes that have shaped the regions unique biota, which will inform land managers working to protect and conserve both species and the processes responsible for generating and sustaining them.
The applicability of eDNA metabarcoding approaches for sessile benthic surveying in the Kimberley region, north-western Australia
<p>The application of environmental DNA technologies is a promising new approach to rapidly audit biodiversity across large-scale, remote regions. Here, we examine the efficacy of a dual-assay eDNA metabarcoding approach for sessile benthic bioassessments in the turbid waters of the Lalang-garram <a>Marine Parks</a>, in the inshore Kimberley region, north-western Australia. We ask three principal questions: 1. Is the eDNA released by sessile benthic taxa (i.e. hard and soft corals, sponges and tunicates) locally detectable? 2. What level of taxonomic resolution is afforded by eDNA metabarcoding using the ITS2 region? and 3. How well does eDNA metabarcoding compare to conventional benthic survey techniques, such as belt and point-intercept transects? We report that a dual-assay eDNA metabarcoding approach is capable of detecting approximately 70% of the local benthic taxa (i.e. at a species, genus level etc) identified at the surveyed locations. It is, however, not as effective at the individual/population level, detecting only approximately 40% of unique amplicon sequence variant (ASV) signals released by an array of individual benthic organisms at the surveyed locations. In examining the efficacy and resolution of the applied ITS2 metabarcoding markers for bioassessments, we report large gaps in the variety of publicly available benthic ITS2 reference sequence data, limiting our ability to provide robust taxonomic assignments. These findings highlight the need to extend ITS2 databases for greater regional representation. Until this is adequately addressed, we recommend that investigating taxonomic assignments to a genus-level is the most robust approach to benthic monitoring using eDNA. Lastly, we found eDNA metabarcoding and conventional belt-transect surveys each detected numerous unique hard coral genera, indicating that a combined approach provides the most effective way to audit benthic biodiversity. Furthermore, eDNA metabarcoding had the power to distinguish similar diversity trends between sites to that determined by the belt-transect methodology, validating the application of eDNA metabarcoding as either a stand-alone, or complementary technique for assessing sessile benthic taxa.</p>
FIGURE 2. A in Deep-sea squat lobsters of the genus Paramunida Baba, 1988 (Crustacea: Decapoda: Munididae) from north-western Australia: new records and description of three new species
FIGURE 2. A, Paramunida christinae sp. nov. unspecified specimen (NMV J56023); B–C, Paramunida tricarinata (Alcock, 1894), female, cl 14.2 mm (NMV J56012), male, cl 5.10 mm (NMV J56017). Photos: K. Gowlett-Holmes.
FIGURE 8 in A new species of Litoria (Anura: Hylidae) with a highly distinctive tadpole from the north-western Kimberley region of Western Australia
FIGURE 8. Comparison of call structures in Litoria aurifera sp. nov. and Litoria meiriana. A = L. aurifera: 1) advertisement call with following squeak 2) grind with following squeak. B = L. meiriana, advertisement call with following squeak. In all cases the upper trace is an oscillogram and the lower trace a sound spectrogram. Spectrogram traces have been optimised to illustrate frequency bands and modulation and do not necessarily reflect analytical settings reported in the text. Bar represents 0.1 seconds.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.