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Developing tools for assessing ecological performance of marine protected areas. Marine Protected Areas (MPAs) are rapidly being established around Australia as a device to conserve marine biodiversity. Their ability to sustain animal and plant populations depends critically on the ability of populations to replenish themselves, but we have no ready way of assessing replenishment, relying instead on simple counts of animals and plants within MPAs as a measure of their success. We propose a new ....Developing tools for assessing ecological performance of marine protected areas. Marine Protected Areas (MPAs) are rapidly being established around Australia as a device to conserve marine biodiversity. Their ability to sustain animal and plant populations depends critically on the ability of populations to replenish themselves, but we have no ready way of assessing replenishment, relying instead on simple counts of animals and plants within MPAs as a measure of their success. We propose a new measure, using relationships between adult stocks and recruitment, as a way of assessing the long-term success of MPAs. We will test this measure using comparisons among marine national parks that were established recently in Victoria.Read moreRead less
Chemical warfare at small scales: does eukaryotic chemical defense theory fit biofilms? The ecology of bacteria has long been treated separately from the ecology of higher organisms. Thus we do not know whether the ecology of bacteria operates by the same general rules as those of plants and animals. This significantly diminishes our understanding of the natural world, and our capacity to manage our environment. In this project we will systematically test ecological defense theories in bacterial ....Chemical warfare at small scales: does eukaryotic chemical defense theory fit biofilms? The ecology of bacteria has long been treated separately from the ecology of higher organisms. Thus we do not know whether the ecology of bacteria operates by the same general rules as those of plants and animals. This significantly diminishes our understanding of the natural world, and our capacity to manage our environment. In this project we will systematically test ecological defense theories in bacterial systems. Our aim is to merge our understanding of the ecology of these very different organisms. This integration of plant and animal ecology and environmental microbiology is new for both fields, and thus studies such as this one have the potential to put Australia at the forefront of this exciting new approach to our environment.Read moreRead less
New approaches to measuring the composition and nutrient status of single phytoplankton cells. Phytoplankton support 90% of aquatic food webs, and are responsible for nearly half of global primary productivity. Conversely, blooms of some phytoplankton, often associated with excess nutrients, can cause major environmental problems, including fish kills and risks to human health. However, current methods for determining the nutrient status of phytoplankton are time consuming and ignore the complex ....New approaches to measuring the composition and nutrient status of single phytoplankton cells. Phytoplankton support 90% of aquatic food webs, and are responsible for nearly half of global primary productivity. Conversely, blooms of some phytoplankton, often associated with excess nutrients, can cause major environmental problems, including fish kills and risks to human health. However, current methods for determining the nutrient status of phytoplankton are time consuming and ignore the complexity of responses of different species in mixed populations. This project will develop new, rapid, ways of examining the nutrient condition of individual algal cells, which will be of considerable use to the water industry as well as to our understanding of aquatic ecology.Read moreRead less
An elemental hypothesis for sub-tropical refugia in reef corals. This project aims to discover the underlying traits that permit Australian reef corals to live near the edges of their ranges in relatively cool water. As ocean temperatures warm, novel communities are expected to develop in high latitude ecosystems, which might become important as thermal refugia for low latitude coral reefs. The project aims to test the role of elemental composition (carbon, nitrogen and phosphorus) in coral host ....An elemental hypothesis for sub-tropical refugia in reef corals. This project aims to discover the underlying traits that permit Australian reef corals to live near the edges of their ranges in relatively cool water. As ocean temperatures warm, novel communities are expected to develop in high latitude ecosystems, which might become important as thermal refugia for low latitude coral reefs. The project aims to test the role of elemental composition (carbon, nitrogen and phosphorus) in coral host and symbiont response to changing water temperature along a latitudinal gradient. The intended outcome of the project is to provide knowledge to support predictions of likely species migrations from tropical to subtropical waters, enabling managers to anticipate the future response of coral communities to seawater warming.Read moreRead less
Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons. Intermittently closing and open lakes and lagoons are shallow coastal water bodies that are connected intermittently to the ocean. Sixty of the 135 estuaries in New South Wales are considered to be ICOLL's. The closure of the Lake/Lagoon entrance to the ocean prevents water exchange that can lead to poor water quality. Detailed field and numerical model studies in two ICOLLS (Coila Lake and Wamberal Lagoon) are proposed us ....Hydrodynamics of Intermittently Closing and Opening Lakes and Lagoons. Intermittently closing and open lakes and lagoons are shallow coastal water bodies that are connected intermittently to the ocean. Sixty of the 135 estuaries in New South Wales are considered to be ICOLL's. The closure of the Lake/Lagoon entrance to the ocean prevents water exchange that can lead to poor water quality. Detailed field and numerical model studies in two ICOLLS (Coila Lake and Wamberal Lagoon) are proposed using modern instrumentation. It is recognised that a fundamental understanding of the circulation and mixing characteristics of ICOLLs is imperative for the development of proper management strategies for these systems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100461
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Early Detection of Seagrass Habitat Loss Caused by Eutrophication. Eutrophication (nutrient over-enrichment) caused by a host of anthropogenic activities is recognised as the most widespread cause of seagrass loss. In order to effectively control seagrass loss, there is an urgent need to determine the link between eutrophication and seagrass loss. This project aims to undertake an innovative 'omics approach (transcriptomics and metabolomics) to develop an early-warning system for seagrass loss. ....Early Detection of Seagrass Habitat Loss Caused by Eutrophication. Eutrophication (nutrient over-enrichment) caused by a host of anthropogenic activities is recognised as the most widespread cause of seagrass loss. In order to effectively control seagrass loss, there is an urgent need to determine the link between eutrophication and seagrass loss. This project aims to undertake an innovative 'omics approach (transcriptomics and metabolomics) to develop an early-warning system for seagrass loss. The acclimation and plasticity of seagrass to sub-lethal stress induced by eutrophication will be investigated at the molecular and biochemical levels. This will allow mitigation responses such as altered catchment management processes to prevent damage before meadows are lost.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101084
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
From sink to source: does microbial priming of degraded seagrasses contribute to global warming? Australian seagrasses are among the planet's most effective natural systems for removing greenhouse gases; but, if degraded, they could leak stored carbon and accelerate global warming. This project will test the emerging paradigm that microbes control carbon leakage, thereby providing information to ensure that seagrass carbon remains locked away.
Understanding marine migratory connectivity for more sustainable oceans. Ocean basin-scale migrations of iconic sea turtles, marine mammals, seabirds, and fish expose them to multiple stressors and governance regimes, leading to gaps in management and population declines. The project aims to deliver the methods and evidence base of cross-taxa migratory connectivity that is essential to support the
conservation of these species. Expected outcomes include comprehensive and integrated models of mig ....Understanding marine migratory connectivity for more sustainable oceans. Ocean basin-scale migrations of iconic sea turtles, marine mammals, seabirds, and fish expose them to multiple stressors and governance regimes, leading to gaps in management and population declines. The project aims to deliver the methods and evidence base of cross-taxa migratory connectivity that is essential to support the
conservation of these species. Expected outcomes include comprehensive and integrated models of migratory connectivity, conservation theory development, and new methods that allow incorporation of migratory connectivity in conservation planning. Benefits include: a cross-taxa baseline that will enable Australia to measure environmental change in marine migratory connectivity for the first time.Read moreRead less
Connecting ecological processes controlling variation across spatial scales. Large variability in numbers and types of animals from place to place and time to time characterizes many ecological systems, particularly on the rocky shores along our coasts. It confuses interpretation and hampers predictions about conservation, impacts and climatic change. This programme is a systematic experimental analysis of the major causes of variance (availability of suitable habitat and food, influences of w ....Connecting ecological processes controlling variation across spatial scales. Large variability in numbers and types of animals from place to place and time to time characterizes many ecological systems, particularly on the rocky shores along our coasts. It confuses interpretation and hampers predictions about conservation, impacts and climatic change. This programme is a systematic experimental analysis of the major causes of variance (availability of suitable habitat and food, influences of weather) on the animals and indirectly on their food. The research will unravel the interacting influences that operate over several spatial scales to cause variability in local diversity. This will radically increase our capacity to sustain our coastal fauna.Read moreRead less