A5008972556- Environmental Toxicology and Ecotoxicology
- Polar Research and Ecology
- Mercury impact and mitigation studies
- Marine Biology and Ecology Research
- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Rangeland and Wildlife Management
- Biocrusts and Microbial Ecology
- Oil Spill Detection and Mitigation
- Heavy metals in environment
- Marine and fisheries research
- Land Use and Ecosystem Services
- Isotope Analysis in Ecology
- Environmental Policies and Emissions
- Marine Biology and Environmental Chemistry
- Microbial Community Ecology and Physiology
- Climate change impacts on agriculture
- Conservation, Biodiversity, and Resource Management
- Climate Change and Environmental Impact
- Urban Green Space and Health
- Radioactivity and Radon Measurements
- Peatlands and Wetlands Ecology
- Mining and Resource Management
- Marine Ecology and Invasive Species
- Climate Change and Sustainable Development
Australian Antarctic Division
2016-2024
Southern Cross University
2013-2020
Rocky Mountain Research (United States)
2006
Rocky Mountain Research Station
2006
Montana State University
2001-2005
Low-density rural home development is the fastest-growing form of land use in United States since 1950. This "exurban" (∼6–25 homes/km2) includes urban fringe (UFD) on periphery cities and residential (RRD) areas attractive natural amenities. paper synthesizes current knowledge effects UFD RRD. We present two case studies examine patterns biodiversity response ecological mechanisms that may underlie these responses. found many native species have reduced survival reproduction near homes,...
Robust environmental assessments and contaminant monitoring in Antarctic near-shore marine environments need new techniques to overcome challenges presented by a highly dynamic environment. This study outlines an approach for risk assessment conditions using diffusive gradients thin-films (DGT) coupled regionally specific ecotoxicology data quality standards. is demonstrated field where DGT samplers were deployed the environment of East Antarctica around operational Casey station abandoned...
Fuel spills are a major source of contamination in terrestrial environments Antarctica. Little is known the effects hydrocarbon contaminants fuels on Antarctic biota, and how these change as fuel ages within soil. In this study we investigate sensitivity juveniles endemic nematode Plectus murrayi to diesel-spiked Toxicity tests were conducted soil elutriates, changes concentrations hydrocarbons, polar compounds PAHs assessed spiked was artificially aged at 3 °C over 45-week period,...
Toxicity testing with Antarctic species is required for risk assessment of fuel spills in coastal waters. The lethal and sublethal (movement behavior) sensitivities adults juveniles the amphipod Paramoera walkeri to water accommodated fractions (WAFs) 3 fuels were estimated extended-duration tests at -1 °C 21 d. Response P. hydrocarbon concentrations was slow, 50% (LC50s) first able be 7 d exposed Special Blend diesel (SAB), which had highest WAFs. Juveniles showed greater response marine...
Anthropogenic activities in Antarctica have led to contamination of terrestrial sites, and soils ice-free areas elevated concentrations metals, particularly around current historic research stations. Effective management Antarctic contaminated sites depends on the assessment risks a representative range native species. Bdelloid rotifers are an abundant biodiverse component limnoterrestrial communities play key role nutrient cycling ecosystems. The present study investigates toxicity five...
Environmental quality guideline values and remediation targets, specific to Antarctic ecosystems, are required for the risk assessment of contaminated sites in Antarctica. Ecotoxicological testing with soil organisms is fundamental determining reliable contaminant effect threshold concentrations. The present study describes development optimal culturing techniques aqueous toxicity test procedures an endemic nematode, Plectus murrayi, which lives within interstitial waters between particles....
Antarctic marine environments are at risk from petroleum fuel spills as shipping activities in the Southern Ocean increase. Knowledge of sensitivity species to fuels under environmentally realistic exposure conditions is lacking. We determined toxicity 3 fuels, Special Blend diesel (SAB), gas oil (MGO), and intermediate (IFO 180) a common sea urchin, Sterechinus neumayeri. Sensitivity was estimated for early developmental stages fertilization 4-arm pluteus tests up 24 d duration. The effects...
Terrestrial microinvertebrates provide important carbon and nutrient cycling roles in soil environments, particularly Antarctica where larger macroinvertebrates are absent. The environmental preferences ecology of rotifers tardigrades terrestrial including Antarctica, not as well understood their temperate aquatic counterparts. Developing laboratory cultures is critical to adequate numbers individuals for controlled experimentation. In this study, we explore aspects optimising culturing two...
When did hunter-gatherers begin trading the wild life for farming and herding? Over past decade, advances in molecular biology, accelerator mass spectrometry dating, other techniques have begun to offer new answers agriculture9s oldest question, but big gaps historical picture remain. To fill those gaps, scientists are expanding their search by taking a closer look at museum collections exploring tiny plant remains trapped beneath ancient food residue or stuck excavated tools teeth.