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Phyloinformatics and biodiversity: developing bioinformatic tools for understanding the dynamics of extinction and invasion within species assemblages. DNA sequence data provides an exciting new way to study biodiversity, because the genome of each organism records its evolutionary history. By analysing DNA sequences co-existing species, we can reconstruct the ecological and evolutionary history of a biological community. This allows us to track biodiversity changes over time, and examine how th ....Phyloinformatics and biodiversity: developing bioinformatic tools for understanding the dynamics of extinction and invasion within species assemblages. DNA sequence data provides an exciting new way to study biodiversity, because the genome of each organism records its evolutionary history. By analysing DNA sequences co-existing species, we can reconstruct the ecological and evolutionary history of a biological community. This allows us to track biodiversity changes over time, and examine how the state of a species assemblage determines which species are lost through extinction or gained through the invasion of exotic species. Understanding the factors that govern changes in biodiversity over time is essential for planning for future conservation in the face of a rapidly changing environment. Read moreRead less
The renaissance predator: complex predator-prey interactions and vertebrate diversity in arid Australia. This project will greatly increase understanding of how predators influence the ecology and diversity of their prey in Australia's deserts, and thus improve our ability to conserve and manage our iconic but fragile inland landscapes. It will increase awareness locally about the richness of desert life and stimulate national and international interest by contributing to emerging debate about h ....The renaissance predator: complex predator-prey interactions and vertebrate diversity in arid Australia. This project will greatly increase understanding of how predators influence the ecology and diversity of their prey in Australia's deserts, and thus improve our ability to conserve and manage our iconic but fragile inland landscapes. It will increase awareness locally about the richness of desert life and stimulate national and international interest by contributing to emerging debate about how predators influence diversity. It will also establish an unparalleled 24-year time series of ecological data, and thus provide a key resource to chart the biological effects of climate change and assist sustainable management of biodiversity across the continent's vast interior. Read moreRead less
Toad vs Toad: Innovative approaches to understand and control an invasive species. Understanding the ecology of an invasive pest species can be a powerful tool for developing control methods. Cane toads pose a major threat to Australian native species, and are spreading increasingly rapidly through the Australian tropics. Unfortunately, we still know very little about the biology of invasion-front populations of toads. This project will provide that understanding, and will explore new ideas a ....Toad vs Toad: Innovative approaches to understand and control an invasive species. Understanding the ecology of an invasive pest species can be a powerful tool for developing control methods. Cane toads pose a major threat to Australian native species, and are spreading increasingly rapidly through the Australian tropics. Unfortunately, we still know very little about the biology of invasion-front populations of toads. This project will provide that understanding, and will explore new ideas about ways to control toad populations. For example, if we can reduce the survival of feral animals by increasing the intensity of competition within their own popualtions rather than relying on effects of other species, we may be able to use the toads to control their own populations.Read moreRead less
Understanding coastal biodiversity: The impact of marine production subsidies upon arid coastal environments. Many of the Earth's coastlines have productive seas next to arid terrestrial habitats. Much of the coastline of Western Australia is arid. Our project will determine if biodiversity in fringing terrestrial areas is controlled by the supply of marine plant material that is transported to land by waves, wind and birds. A consequence of increasing coastal usage is associated growing anthrop ....Understanding coastal biodiversity: The impact of marine production subsidies upon arid coastal environments. Many of the Earth's coastlines have productive seas next to arid terrestrial habitats. Much of the coastline of Western Australia is arid. Our project will determine if biodiversity in fringing terrestrial areas is controlled by the supply of marine plant material that is transported to land by waves, wind and birds. A consequence of increasing coastal usage is associated growing anthropogenic pressures on the coastal environment. Our aim is to enhance awareness of the interactions that occur between terrestrial and marine systems, and hence to increase the capacity of the public and private sector to manage marine and terrestrial ecosystems, and the interface between them.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989072
Funder
Australian Research Council
Funding Amount
$100,000.00
Summary
High throughput nitrogen analysis for ecological studies. Australian environments are unproductive partly because they contain little Nitrogen (N) and changes in atmospheric CO2 will exacerbate this. Furthermore, animals cannot extract all the N from the plants they eat. An assay has been developed that measures how much they can extract (available N) and it is intended to use it to measure habitat quality and the effects of climate change over large tracts of land. This requires thousands of ....High throughput nitrogen analysis for ecological studies. Australian environments are unproductive partly because they contain little Nitrogen (N) and changes in atmospheric CO2 will exacerbate this. Furthermore, animals cannot extract all the N from the plants they eat. An assay has been developed that measures how much they can extract (available N) and it is intended to use it to measure habitat quality and the effects of climate change over large tracts of land. This requires thousands of N analyses. The equipment we are requesting - a LECO combustion analyser, allows us to analyse samples quickly and safely and uses fewer chemicals and much less water than do traditional machines.Read moreRead less
Responses of southern Australian mammal faunas to climate change before and after human arrival. In the past 170 years, southern Australia mammals have suffered one of the worst extinction rates in the world. More losses are predicted in the face of global warming. This recent extinction wave follows a major extinction event that saw 90% of Australia's large animals disappear 60,000-40,000 years ago. The causes are hotly debated. Some researchers argue for a human cause, others suggest that clim ....Responses of southern Australian mammal faunas to climate change before and after human arrival. In the past 170 years, southern Australia mammals have suffered one of the worst extinction rates in the world. More losses are predicted in the face of global warming. This recent extinction wave follows a major extinction event that saw 90% of Australia's large animals disappear 60,000-40,000 years ago. The causes are hotly debated. Some researchers argue for a human cause, others suggest that climate change was to blame. This study will refine our knowledge of the timing and causes of these extinctions in southern Australia by assessing how communities responded to climate change in the lead-up to human arrival. It will provide vital information for managing the conservation of many modern species and guide us in limiting future losses.Read moreRead less
How does flow regulation affect food web linkages between juvenile and larval fish and aquatic invertebrates in a coastal river? River regulation to supply water for human demands has altered flow regimes in many Australian rivers. These changes in flow impact on native invertebrate and fish community composition. Environmental flow allocations seek to alleviate these impacts but managers are hampered by lack of data on the effects of flow on food web linkages, particularly for juvenile and lar ....How does flow regulation affect food web linkages between juvenile and larval fish and aquatic invertebrates in a coastal river? River regulation to supply water for human demands has altered flow regimes in many Australian rivers. These changes in flow impact on native invertebrate and fish community composition. Environmental flow allocations seek to alleviate these impacts but managers are hampered by lack of data on the effects of flow on food web linkages, particularly for juvenile and larval fish (JLF). We aim to compare food webs of invertebrates and JLF in six tributaries of the Hunter River, three of which are regulated, to determine how flow regulation changes trophic linkages. A flow release in one tributary will let us test the hypothesis that river regulation restricts food availability to JLF, reducing their viability, growth rates, and abundance.Read moreRead less
Predicting the ecological impact of cane toads on native fauna of northwestern Australia. At current rates of spread, cane toads will invade the Kimberley region of northwestern Australia within a few years. We urgently need to be able to predict which native species will be at risk from toads, and which will be relatively unaffected either because they are not killed by toads, or because they can rapidly learn, or evolve, in ways that reduce this impact and thus allow population recovery. We ....Predicting the ecological impact of cane toads on native fauna of northwestern Australia. At current rates of spread, cane toads will invade the Kimberley region of northwestern Australia within a few years. We urgently need to be able to predict which native species will be at risk from toads, and which will be relatively unaffected either because they are not killed by toads, or because they can rapidly learn, or evolve, in ways that reduce this impact and thus allow population recovery. We will obtain these data by exposing native animals to toads and recording the results; and thus, can identify the most important priorities for conservation efforts.Read moreRead less
Novel species interactions arising from synergistic environmental changes. Synergistic environmental changes, including climate and land use change, are altering Australia's ecosystems and creating novel species assemblages. We know little about how these assemblages develop and function, and yet they are likely to become more pervasive and provide a significant conservation and restoration challenge. We aim to improve our understanding of the factors affecting the creation of novel plant assemb ....Novel species interactions arising from synergistic environmental changes. Synergistic environmental changes, including climate and land use change, are altering Australia's ecosystems and creating novel species assemblages. We know little about how these assemblages develop and function, and yet they are likely to become more pervasive and provide a significant conservation and restoration challenge. We aim to improve our understanding of the factors affecting the creation of novel plant assemblages (through invasions and changes in species' ranges) in the York Gum woodlands of Western Australia. We will examine how novel assemblages function, improve the ability to predict potential ongoing changes in assemblages and provide guidance for the management of these and other internationally important plant communities.Read moreRead less
Biodiversity of coral reefs. An international team will provide the first robust measures of the biodiversity, abundance and functional roles of key coral reef species at a global scale. We will examine the processes underlying biodiversity patterns through a multi-disciplinary program of research, which focusses on ecological and evolutionary mechanisms at multiple scales. A modelling component will provide the mechanistic link between large-scale patterns and multi-scale processes. This resear ....Biodiversity of coral reefs. An international team will provide the first robust measures of the biodiversity, abundance and functional roles of key coral reef species at a global scale. We will examine the processes underlying biodiversity patterns through a multi-disciplinary program of research, which focusses on ecological and evolutionary mechanisms at multiple scales. A modelling component will provide the mechanistic link between large-scale patterns and multi-scale processes. This research is highly relevant for conservation and management of reef resources across international boundaries.Read moreRead less