A5014866451- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geological formations and processes
- Aquatic Invertebrate Ecology and Behavior
- Pleistocene-Era Hominins and Archaeology
- Coastal wetland ecosystem dynamics
- Hydrology and Sediment Transport Processes
- Diatoms and Algae Research
- Freshwater macroinvertebrate diversity and ecology
- Archaeology and ancient environmental studies
- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Aquatic Ecosystems and Biodiversity
- Pacific and Southeast Asian Studies
- Evolution and Paleontology Studies
- Geochemistry and Geologic Mapping
- Tree-ring climate responses
- Climate variability and models
- Polar Research and Ecology
- Marine and coastal ecosystems
- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
- Soil and Water Nutrient Dynamics
The University of Adelaide
2016-2025
University of Arizona
2022
Institut de l'Information Scientifique et Technique
2022
New York University Press
2022
Cawthron Institute
2021
Faculty of 1000 (United States)
2021
National University of Tierra del Fuego
2021
Australian Institute of Tropical Health and Medicine
2020
James Cook University
2020
Queensland Department of Environment and Science
2011
Abstract The La Niña and El Niño phases of the Niño-Southern Oscillation (ENSO) have major impacts on regional rainfall patterns around globe, with substantial environmental, societal economic implications. Long-term perspectives ENSO behaviour, under changing background conditions, are essential to anticipating how may respond future climate scenarios. Here, we derive a 7700-year, quantitative precipitation record using carbon isotope ratios from single species leaf preserved in lake...
Salinity is generally considered to be the dominant environmental factor regulating aquatic community structure in hydrologically closed lakes and wetlands, but it not well known whether response long-term trends hydrological balance driven primarily by direct physiological effect of salinity stress or habitat restructuring that accompanies changes lake level salinity. Attempts separate effects various factors on invertebrate populations shallow fluctuating through field study are hampered...
Abstract Diatoms possess a number of attributes which contribute to their suitability as biological indicators. They are highly sensitive water chemistry changes, abundant in aquatic environments, largely cosmopolitan distribution, less habitat dependent than macroinverte‐brates and have well‐studied taxonomy ecology. Furthermore, the preservation diatom valves lake sediments means that they can provide otherwise unavailable baseline data be used assess contextualize human impacts on...
Abstract Archaeological excavations in sediments dating to between 60 000 and 40 years ago are rare Australia. Yet this is precisely the period which most archaeologists consider that Aboriginal people arrived on continent. In few cases where such early sites have been investigated, questions invariably raised as reliability of stratigraphic associations cultural items surrounding sediments. This paper describes a method for examining sediment mixing sequence using optically stimulated...
Abstract Floodplain wetlands accumulate river‐borne sediments that include mixed assemblages of allochthonous and autochthonous diatoms as fossils. These have been used in river floodplain reservoirs to quantitatively reconstruct salinity, pH nutrients qualitatively infer connectivity turbidity over periods spanning decades millennia. High sedimentation rates some sites permitted sub‐annual temporal resolution; however, annual decadal resolution is more usual. The establishment chronologies...
High resolution records of past hydroclimate are crucial for understanding the recurrence extreme climatic events (prolonged droughts and deluges) robust decision making around environmental economic sustainability. The current study presents a ~sub-decadal-scale reconstruction based on oxygen isotope analysis lake sediment ostracod shells, extracted from sediments Lashmars Lagoon, Kangaroo Island, South Australia. Spanning last ~2000 years, record series multi-decadal wet dry periods,...
The Holocene history of Australia’s hydroclimate is surprisingly poorly understood. This is, in part, because the relatively weak forcing climate versus that late Pleistocene. However, it commonly suggested eastern Australian climates dried late-Holocene and this was response to increased activity El Niño-Southern Oscillation (ENSO), particular, intensification Niño phase ENSO cycle. While has been inferred from numerous locations, data K'gari (a World...
A tephra layer originating from the mid-second millennium BC (3300 14 C yr BP) ‘Minoan’ eruption of Santorini (or Thera) in Aegean has been found lake sediments at G6lhisar southwest Turkey. Microstratigraphic analyses shard concentration (TSC), pollen, diatoms, sponge spicules and nonsiliceous microfossils Gtlhisar permit impact this major volcanic on terrestrial aquatic biota to be investigated quantitatively. Partial redundancy analysis associated Monte Carlo permutation tests suggest...
Local knowledge is increasingly seen as a critical information source for environmental management and habitat restoration, particularly in Australia. To assess the reliability of this source, community perceptions salinity history Lake Ainsworth (New South Wales, Australia) were investigated. coastal dune lake classified 'permanently' freshwater, although diatom evidence indicates saline phase that ended 1930s. accounts Lake's rarely reached consensus local frequently contrasted with...
Summary Human‐induced environmental change threatens freshwater ecosystems, and knowing how these systems have responded to past variability can inform management decisions. Palaeoenvironmental reconstructions provide insight, although their low temporal resolution may mask short‐term responses. Hence, a combination of short‐term, high‐resolution contemporary data long‐term, low‐resolution palaeoenvironmental offer greater understanding system behaviour. We demonstrate this approach by...