ORCID Profile
0000-0002-8019-0160
Current Organisation
UNSW Sydney
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Publisher: Wiley
Date: 31-05-2022
DOI: 10.1111/GEB.13550
Abstract: Invertebrates make up the vast majority of fauna species but are often overlooked in impact assessment and conservation response. The extent to which the 2019–2020 Australian megafires overlapped with the range of vertebrate species has been well documented consequently, substantial resourcing has been directed towards their recovery. Here, we attempt to document the extent of overlap of these megafires with invertebrate species. In doing so, we seek to demonstrate that it is possible and worthwhile to assess the effect of a catastrophic event on a large number of poorly known species. Temperate and subtropical Australia. 2019–2020. Australian invertebrates. We adapted a published analytical pathway for the assessment of distributional fire overlap on vertebrate species. Overlaps with fire for 32,163 invertebrate taxa were determined using point records and polygons. We found that 13,581 invertebrate taxa had part of their range burnt in the 2019–2020 Australian megafires. Of these, 382 taxa had the whole of their known range burnt, and a further 405 taxa had 50–99.9% of their range burnt. Five ex les are described. Poorly known groups of bio ersity can be impacted significantly by major disturbance events, but such impact is often overlooked. This oversight has the consequences of under‐estimating the magnitude of impacts and the potential failure to direct conservation responses to those species most in need of them. Our analysis demonstrates that the 2019–2020 megafires burnt ≥50% of the known range of nearly 800 Australian invertebrate taxa, a tally far higher than for vertebrates (19 taxa). Assessment of the real impact (i.e., beyond simply overlap with fire) requires more consideration of susceptibility and/or post‐fire survey and monitoring. The magnitude of overlap of the 2019–2020 megafires on invertebrate species justifies a conservation response that is less biased towards iconic vertebrate species.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3TA01931D
Abstract: Hybrid water electrolysis using 2D electrocatalysts is a promising way to reduce the cost of green hydrogen production. This review systematically assesses the status quo and future challenges of various 2D materials for different reactions.
Publisher: Wiley
Date: 07-07-2021
Abstract: Monitoring and controlling the reconstruction of materials under working conditions is crucial for the precise identification of active sites, elucidation of reaction mechanisms, and rational design of advanced catalysts. Herein, a Bi‐based metal–organic framework (Bi‐MOF) for electrochemical CO 2 reduction is selected as a case study. In situ Raman spectra combined with ex situ electron microscopy reveal that the intricate reconstruction of the Bi‐MOF can be controlled using two steps: 1) electrolyte‐mediated dissociation and conversion of Bi‐MOF to Bi 2 O 2 CO 3 , and 2) potential‐mediated reduction of Bi 2 O 2 CO 3 to Bi. The intentionally reconstructed Bi catalyst exhibits excellent activity, selectivity, and durability for formate production, and the unsaturated surface Bi atoms formed during reconstruction become the active sites. This work emphasizes the significant impact of pre‐catalyst reconstruction under working conditions and provides insight into the design of highly active and stable electrocatalysts through the regulation of these processes.
Publisher: Wiley
Date: 09-07-2021
Abstract: Monitoring and controlling the reconstruction of materials under working conditions is crucial for the precise identification of active sites, elucidation of reaction mechanisms, and rational design of advanced catalysts. Herein, a Bi‐based metal–organic framework (Bi‐MOF) for electrochemical CO 2 reduction is selected as a case study. In situ Raman spectra combined with ex situ electron microscopy reveal that the intricate reconstruction of the Bi‐MOF can be controlled using two steps: 1) electrolyte‐mediated dissociation and conversion of Bi‐MOF to Bi 2 O 2 CO 3 , and 2) potential‐mediated reduction of Bi 2 O 2 CO 3 to Bi. The intentionally reconstructed Bi catalyst exhibits excellent activity, selectivity, and durability for formate production, and the unsaturated surface Bi atoms formed during reconstruction become the active sites. This work emphasizes the significant impact of pre‐catalyst reconstruction under working conditions and provides insight into the design of highly active and stable electrocatalysts through the regulation of these processes.
Publisher: Wiley
Date: 15-03-2022
DOI: 10.1111/DDI.13497
Abstract: Introduced predators negatively impact bio ersity globally, with insular fauna often most severely affected. Here, we assess spatial variation in the number of terrestrial vertebrates (excluding hibians) killed by two mammalian mesopredators introduced to Australia, the red fox ( Vulpes vulpes ) and feral cat ( Felis catus ). We aim to identify prey groups that suffer especially high rates of predation, and regions where losses to foxes and/or cats are most substantial. Australia. We draw information on the spatial variation in tallies of reptiles, birds and mammals killed by cats in Australia from published studies. We derive tallies for fox predation by (i) modelling continental‐scale spatial variation in fox density, (ii) modelling spatial variation in the frequency of occurrence of prey groups in fox diet, (iii) analysing the number of prey in iduals within dietary s les and (iv) discounting animals taken as carrion. We derive point estimates of the numbers of in iduals killed annually by foxes and by cats and map spatial variation in these tallies. Foxes kill more reptiles, birds and mammals (peaking at 1071 km −2 year −1 ) than cats (55 km −2 year −1 ) across most of the unmodified temperate and forested areas of mainland Australia, reflecting the generally higher density of foxes than cats in these environments. However, across most of the continent – mainly the arid central and tropical northern regions (and on most Australian islands) – cats kill more animals than foxes. We estimate that foxes and cats together kill 697 million reptiles annually in Australia, 510 million birds and 1435 million mammals. This continental‐scale analysis demonstrates that predation by two introduced species takes a substantial and ongoing toll on Australian reptiles, birds and mammals. Continuing population declines and potential extinctions of some of these species threatens to further compound Australia's poor contemporary conservation record.
Publisher: The Royal Society
Date: 10-2022
DOI: 10.1098/RSOS.220792
Abstract: Introduction of the domestic cat and red fox has devastated Australian native fauna. We synthesized Australian diet analyses to identify traits of prey species in cat, fox and dingo diets, which prey were more frequent or distinctive to the diet of each predator, and quantified dietary overlap. Nearly half (45%) of all Australian terrestrial mammal, bird and reptile species occurred in the diets of one or more predators. Cat and dingo diets overlapped least (0.64 ± 0.27, n = 24 location/time points) and cat diet changed little over 55 years of study. Cats were more likely to have eaten birds, reptiles and small mammals than foxes or dingoes. Dingo diet remained constant over 53 years and constituted the largest mammal, bird and reptile prey species, including more macropods otoroids, wombats, monotremes and bandicoots/bilbies than cats or foxes. Fox diet had greater overlap with both cats (0.79 ± 0.20, n = 37) and dingoes (0.73 ± 0.21, n = 42), fewer distinctive items (plant material, possums/gliders) and significant spatial and temporal heterogeneity over 69 years, suggesting the opportunity for prey switching (especially of mammal prey) to mitigate competition. Our study reinforced concerns about mesopredator impacts upon scarce/threatened species and the need to control foxes and cats for fauna conservation. However, extensive dietary overlap and opportunism, as well as low incidence of mesopredators in dingo diets, precluded resolution of the debate about possible dingo suppression of foxes and cats.
Publisher: Wiley
Date: 21-07-2016
Publisher: Springer Science and Business Media LLC
Date: 02-01-2023
Publisher: American Chemical Society (ACS)
Date: 06-04-2022
Publisher: Elsevier BV
Date: 06-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8CC09108K
Abstract: An integrated platform was established for capture of cancer cells and SERS detection of HER2 activity via multifunctional RGD nanopatterns.
Publisher: Wiley
Date: 06-02-2022
Abstract: Dual‐atom catalysts (DACs) have become an emerging platform to provide more flexible active sites for electrocatalytic reactions with multi‐electron roton transfer, such as the CO 2 reduction reaction (CRR). However, the introduction of asymmetric dual‐atom sites causes complexity in structure, leaving an incomprehensive understanding of the inter‐metal interaction and catalytic mechanism. Taking NiCu DACs as an ex le, herein, a more rational structural model is proposed, and the distance‐dependent inter‐metal interaction is investigated by combining theoretical simulations and experiments, including density functional theory computation, aberration‐corrected transmission electron microscopy, synchrotron‐based X‐ray absorption fine structure, and Monte Carlo experiments. A distance threshold around 5.3 Å between adjacent NiN 4 and CuN 4 moieties is revealed to trigger effective electronic regulation and boost CRR performance on both selectivity and activity. A universal macro‐descriptor rigorously correlating the inter‐metal distance and intrinsic material features (e.g., metal loading and thickness) is established to guide the rational design and synthesis of advanced DACs. This study highlights the significance of identifying the inter‐metal interaction in DACs, and helps bridge the gap between theoretical study and experimental synthesis of atomically dispersed catalysts with highly correlated active sites.
Publisher: American Chemical Society (ACS)
Date: 14-08-2019
Publisher: Wiley
Date: 15-01-2021
Publisher: Elsevier BV
Date: 08-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7AN01295K
Abstract: Developing a sensitive and accurate method for Furin activity is still the bottleneck for understanding the role played by Furin in cell-surface systems and even in Alzheimer's disease.
No related grants have been discovered for Dazhi Yao.