A5052203387- Insect Resistance and Genetics
- Insect-Plant Interactions and Control
- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Insect Pest Control Strategies
- Insect behavior and control techniques
- Research in Cotton Cultivation
- Ecology and Vegetation Dynamics Studies
- Avian ecology and behavior
- Environmental Conservation and Management
- Species Distribution and Climate Change
- Agricultural pest management studies
- Efficiency Analysis Using DEA
- Evolution and Paleontology Studies
- Microbial Community Ecology and Physiology
- Insect and Arachnid Ecology and Behavior
- Climate variability and models
- Oil Palm Production and Sustainability
- Precipitation Measurement and Analysis
- Wildlife-Road Interactions and Conservation
- Forest ecology and management
- Polar Research and Ecology
- Sustainable Agricultural Systems Analysis
- Soil Moisture and Remote Sensing
- Wildlife Ecology and Conservation
University of New England
2022
NSW Environment and Heritage
2012
The University of Queensland
2006
Commonwealth Scientific and Industrial Research Organisation
1995-2005
Cotton Research and Development Corporation
2005
Diurnal basking ("sunning") is common in many ectotherms and generally thought to be a behavioural mechanism for thermoregulation. Recent studies have reported the occurrence of nocturnal few distantly-related species freshwater turtles, but true extent this behaviour unknown, it may underreported due sampling biases (e.g., not surveying turtles at night). Therefore, we initiated global, collaborative effort systematically document quantify activity (diurnal nocturnal) across wide range...
The population dynamics of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in the Murrumbidgee Valley, Australia, has been characterized using five highly variable microsatellite loci. In 2001-2002 growing season, there were very high levels migration into Valley with no detectable genetic structuring, consistent previous analyses on a national scale. By contrast, was significant structuring over 2002-2003 three distinct types detected. first type corresponded to two generations and...
Abstract Introduced red foxes ( Vulpes vulpes ) are a major predator of freshwater turtle nests in Australia. We evaluated the effectiveness electric fences, combination with individual nest protection, for shielding western saw‐shelled Myuchelys bellii : Chelidae) from predation by foxes. compared numbers raided and intact found paired fenced treatment unfenced control areas streambank. also individually protected all both area types wire mesh or steel cage. The total did not significantly...
Artificial incubation of eggs and the release hatchlings into wild is a common conservation intervention designed to augment threatened turtle populations. We investigate range temperatures establish an optimal temperature for maximum hatching success western saw-shelled (Myuchelys bellii) eggs. report on influence duration describe two experimental methods which, same (27°C), resulted in 77% 97% success, respectively. Eggs were incubated at constant (27°C, 28°C 29°C) determine period,...
Summary Assignment of large numbers vegetation plots to a priori classifications is increasingly being required support natural resource management, monitoring and conservation at regional scales. Several automated systems have been developed that use quantitative synoptic tables algorithm‐based plot‐to‐type assignment. However, where do not exist, qualitative species lists characterise type classifications, existing may apply. In these situations, experts resort manual assignment processes...
Abstract The extent and timing of the spring emergence Helicoverpa armigera moths from overwintering pupae was measured in southern New South Wales (NSW). Survival comparable to that northern NSW, suggesting colder conditions did not significantly reduce survival pupae. Most adults emerged mid‐October mid‐November, approximately 2 weeks later than reported NSW. pattern is similar predicted by HElicoverpa Armigera Punctigera Simulation (HEAPS) model, although it tended be earlier predicted....
The population dynamics of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in the Murrumbidgee Valley, Australia, has been characterized using five highly variable microsatellite loci. In 2001–2002 growing season, there were very high levels migration into Valley with no detectable genetic structuring, consistent previous analyses on a national scale. By contrast, was significant structuring over 2002–2003 three distinct types detected. first type corresponded to two generations and...
Abstract The extreme longevity of turtles and tortoises can make it difficult to determine the conservation status their populations because high annual adult survival may mask gradual attrition due low levels recruitment. When long‐term demographic trends are unknown available data insufficient for population modelling, be assumed that a scarcity juveniles indicates recruitment will result in ageing numerical decline. However, reliability with which proportion foreshadows change is...
Abstract Australia's freshwater turtles have high endemicity and many are threatened by extinction. Following a symposium held at the 2022 conference of Australian Society Herpetologists, we summarized current status research conservation for identified opportunities future research. Eight species (32%) 25 native listed as Federal Government. Symposium discussions on primary gaps in lack baseline data to inform population modelling key deficiency. Knowledge most effective actions,...
Genetic mutations resulting in abnormal colouration occur across all vertebrate groups but are considered rare, especially mammals. Hypo-pigmentary conditions can be separated into albinism, leucism and piebaldism. The impact of colour variation on an animal’s risk predation its ability to blend with surroundings is widely recognised. We report our observations a white platypus (Ornithorhynchus anatinus) tributary the Gwydir River upper reaches Murray Darling Basin, New South Wales,...
The issue of insecticide resistance to Helicoverpa insects is increasing concern the Australian cotton industry. In this paper we begin consider using bioeconomic modelling and analysis. We develop management strategies at farm level within an integrated framework. Because our emphasis on resistance, first discuss index risk that can be applied chemical other strategies. After initial filter used, resulting evaluated in a bio-economic Armigera Punctigera Simulation (HEAPS) model used...