A5051390671- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Soil Moisture and Remote Sensing
- Turtle Biology and Conservation
- Wildlife Ecology and Conservation
- Labor Movements and Unions
- Medieval Literature and History
- Historical and Cultural Archaeology Studies
- Antimicrobial Peptides and Activities
- Bat Biology and Ecology Studies
- Cultural History and Identity Formation
- American Environmental and Regional History
- Animal Behavior and Reproduction
- Fire effects on ecosystems
- Corporate Law and Human Rights
- Animal and Plant Science Education
- Geophysics and Gravity Measurements
- Plant Taxonomy and Phylogenetics
- Ecology and Vegetation Dynamics Studies
- International Labor and Employment Law
- Fish Ecology and Management Studies
- Mollusks and Parasites Studies
- Historical and Archaeological Studies
Southern Cross University
2016-2025
Monash University
2023
The University of Melbourne
2020
University of California, Santa Cruz
2020
Griffith University
2020
University of California, Santa Barbara
2020
The Aerospace Corporation
1982-2017
Ball (United States)
2013-2014
Ball (France)
2007
Stanford University
1993
The Global Precipitation Measurement (GPM) mission is an international satellite that uses measurements from advanced radar/radiometer system on a core observatory as reference standards to unify and advance precipitation estimates made by constellation of research operational microwave sensors. GPM was launched February 27, 2014 at 18:37 UT in 65° inclination nonsun-synchronous orbit. focuses key component the Earth's water energy cycle, has capability provide near-real-time observations...
Abstract Aim After environmental disasters, species with large population losses may need urgent protection to prevent extinction and support recovery. Following the 2019–2020 Australian megafires, we estimated recovery in fire‐affected fauna, inform conservation status assessments management. Location Temperate subtropical Australia. Time period 2019–2030 beyond. Major taxa terrestrial freshwater vertebrates; one invertebrate group. Methods From > 1,050 taxa, selected 173 whose...
Summary The cane toad ( R hinella marina ) invasion of Australia has now reached areas much colder than most its native range in tropical America. Understanding the toad's ability to function such conditions can clarify potential for further spread. In northeastern New South Wales (NSW), toads have been recorded up 1100 m above sea level (asl). Our monitoring over summer 2012–2013 confirmed that ground temperatures were lower at three high‐elevation (750–1010 asl) sites two nearby (100–210...
Abstract Aim The incidence of major fires is increasing globally, creating extraordinary challenges for governments, managers and conservation scientists. In 2019–2020, Australia experienced precedent‐setting that burned over several months, affecting seven states territories causing massive biodiversity loss. Whilst the were still burning, Australian Government convened a Expert Panel to guide its bushfire response. A pressing need was target emergency investment management reduce chance...
To protect Australian amphibian biodiversity, we have identified and prioritised frog species at an imminent risk of extinction from chytridiomycosis, devised national management research priorities for disease mitigation. Six frogs not been observed in the wild since initial emergence chytridiomycosis may be extinct. Seven extant were assessed as needing urgent conservation interventions because (1) their small populations and/or ongoing declines throughout ranges (southern corroboree...
Amphibians have undergone dramatic declines and extinctions worldwide. Prominent among these been the stream-breeding frogs in rainforests of eastern Australia. The amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) has postulated as primary cause declines. We conducted a capture-mark-recapture study over 7-year period on endangered Fleay’s barred frog (Mixophyes fleayi) at two independent streams (30 km apart) order to assess stability populations. This species had severe decline...
Abstract Amphibians are the most threatened vertebrate taxon of modern times. Baseline data and affordable methods to monitor populations absent for many A ustralian frog species. Furthermore, some species visually cryptic, detection often relies upon male advertisement calls. Imperfect rates impede our ability assess status over time. Understanding factors that influence calling is essential inform timing survey effort increase efficiency. Automated recording systems offer considerable...
Abstract The redshifted 21 cm monopole is expected to be a powerful probe of the epoch first stars and galaxies ( <?CDATA $10\lt z\lt 35$?> ). global signal sensitive thermal ionization state hydrogen gas thus provides tracer sources energetic photons—primarily hot accreting black holes—which ionize heat high redshift intergalactic medium (IGM). This paper presents strategy for observations spectrum with realizable instrument placed in low-altitude lunar orbit, performing night-time 40–120...
Abstract Emerging infectious diseases are an increasingly prominent threat to biodiversity. However, traditional methods in conservation generally have limited efficacy the face of disease threats. Ironically, although unintentional human movement species has facilitated spread pathogens, intentional translocations a promising approach combatting threats under certain circumstances. Here, we summarize two decades published literature on Australian frogs threatened by chytridiomycosis—a...
Catastrophic megafires can increase extinction risks; identifying species priorities for management and policy support is critical preparing responding to future fires. However, empirical data on population loss recovery post-fire, especially megafire, are limited taxonomically biased. These gaps could be bridged if species' morphological, behavioural, ecological life history traits indicated their fire responses. Using expert elicitation that estimated changes following the 2019–20...
Amphibian populations are undergoing extensive declines globally. The fungal disease chytridiomycosis, caused by the pathogenic fungus Batrachochytrium dendrobatidis (Bd), is a primary contributor to these declines. amphibian metamorphic stages (Gosner 42–46) particularly vulnerable range of stressors, including Bd. Despite this, studies that explicitly examine host response chytridiomycosis throughout lacking. We aimed determine how Bd exposure during larval impacts development and...
With rising demand for smaller, lower mass microwave instruments, internal calibration using noise diodes is becoming increasingly more attractive space-borne radiometer applications. Since can exhibit on-orbit excess temperature drift, internally calibrated systems typically require vicarious recharacterization. The GMI the first instrument of its kind to include both (noise diodes) and external (hot load/cold sky) systems. dual-calibration system provides unprecedented capability directly...
Abstract Novel infectious diseases, particularly those caused by fungal pathogens, pose considerable risks to global biodiversity. The amphibian chytrid fungus ( Batrachochytrium dendrobatidis , Bd ) has demonstrated the scale of threat, having greatest recorded loss vertebrate biodiversity attributable a pathogen. Despite catastrophic declines on several continents, many affected species have experienced population recoveries after epidemics. However, potential ongoing threat endemic in...
The use of genetic analyses has become ubiquitous in conservation planning and management as biodiversity is increasingly threatened globally. Typically, such are employed at the species-level, though data accrue, it now possible to consider composition multiple species across landscapes. Such macrogenetic perspectives can reveal potential ramifications extreme disturbance events, catastrophic Australian ‘Black Summer’ wildfires 2019/20. This extensive event severely impacted habitats fauna...
A review of the current conservation status Australian amphibians was recently completed as part a World Conservation Union (IUCN) sponsored Global Amphibian Assessment (GAA). Fifty 216 amphibian species (23%) in Australia are now recognized threatened or extinct accord with IUCN Red List Categories and Criteria. Here we report on categories criteria under which individual qualified for listing provide summary supporting information pertaining to population distribution declines. Major...
For typical scanning microwave radiometers, a significant source of calibration error arises from thermal gradients on the hot load. Even when direct or reflected solar illumination is blocked, load arise coupling between target and surface facing which heated cooled as instrument orbits earth. GlobalL Precipitation Measurement (GPM) Microwave Imager (GMI), rotating metal annular ring called "hot tray" serves to guard against intrusion, immediately during majority scan. The planned GMI...