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
Ocean currents and genetic connectedness in a complex archipelago. To what extent are marine coastal communities ?open?, i.e. how often do the oceans carry larvae far from their point of spawning, and what influence does such ocean transport have on the spread of genetic information? These are some of the most fundamental questions of biological oceanography; the project will provide new answers by using an extremely detailed genetic data set from the Houtman Abrolhos Islands off Western Austra ....Ocean currents and genetic connectedness in a complex archipelago. To what extent are marine coastal communities ?open?, i.e. how often do the oceans carry larvae far from their point of spawning, and what influence does such ocean transport have on the spread of genetic information? These are some of the most fundamental questions of biological oceanography; the project will provide new answers by using an extremely detailed genetic data set from the Houtman Abrolhos Islands off Western Australian together with an advanced numerical ocean model especially suited to that environment and developed in Australia.Read moreRead less
Environment modelling of Great Barrier Reef habitats using Autonomous Transect Surveying. This project has as its goal the development of algorithms and methods capable of modeling unstructured, reef environments using data collected by an autonomous robotic system capable of surveying the Great Barrier Reef. The Australian Centre for Field Robotics (ACFR) currently has a small research Umanned Underwater Vehicle capable of undertaking such survey work. Under the proposed project, this vehicle ....Environment modelling of Great Barrier Reef habitats using Autonomous Transect Surveying. This project has as its goal the development of algorithms and methods capable of modeling unstructured, reef environments using data collected by an autonomous robotic system capable of surveying the Great Barrier Reef. The Australian Centre for Field Robotics (ACFR) currently has a small research Umanned Underwater Vehicle capable of undertaking such survey work. Under the proposed project, this vehicle will be equipped with appropriate sensors (such as vision systems, sonar, depth and temperature sensors). The proposed grant will support an APA (I) whose aim will be the construction of comprehensive models of the state of the reef over which the vehicle will operate.Read moreRead less
Setting the limits: Ecological and genetic tests of the status of marine populations at species borders. The wide dispersion of Australia's population along our coastal fringe combined with global climate change poses severe threats to marine biodiversity and necessitates urgent conservation measures. Our study will use ecological and genetic approaches to contribute to our understanding of the roles of reproduction and dispersal in maintaining biodiversity. We will determine whether some loca ....Setting the limits: Ecological and genetic tests of the status of marine populations at species borders. The wide dispersion of Australia's population along our coastal fringe combined with global climate change poses severe threats to marine biodiversity and necessitates urgent conservation measures. Our study will use ecological and genetic approaches to contribute to our understanding of the roles of reproduction and dispersal in maintaining biodiversity. We will determine whether some locations are highly productive sources of larval colonists, whereas others are unproductive and dependent on other sources of recruits, and we will inform management practices such as the creation of marine protected areas.Read moreRead less
Symbiosomes and symbiosome membranes of corals and other cnidaria. Reef building corals and many other marine animals depend on symbiotic algae. Very little is known about the ways in which these organisms achieve effective communication with their endosymbionts, yet this is vital for understanding coral bleaching, a major present-day problem. In corals and their relatives, algae are housed in membrane-bounded vesicles, symbiosomes, which mediate the signal regulation that maintains an ongoin ....Symbiosomes and symbiosome membranes of corals and other cnidaria. Reef building corals and many other marine animals depend on symbiotic algae. Very little is known about the ways in which these organisms achieve effective communication with their endosymbionts, yet this is vital for understanding coral bleaching, a major present-day problem. In corals and their relatives, algae are housed in membrane-bounded vesicles, symbiosomes, which mediate the signal regulation that maintains an ongoing and healthy association at the cellular level. Unlike some terrestrial symbioses, little is known about the structure and function of the coral symbiosome. This study sets out to investigate this membrane at the cellular and molecular level.Read moreRead less
Hyper-accumulations of monosulfidic sediments: Exploring a biogeochemical extreme to resolve fundamental sulfur biomineralisation pathways. The hyper-accumulation of monosulfidic sediments has a directsocial, economic and environmental impact on communities in many parts of Australia, including highly valued wetland systems such as the Ramsar wetlands of the lower Murray Darling Basin and internationally recognised Peel-Harvey Estuary of WA. Maintenance dredging of these materials alone costs th ....Hyper-accumulations of monosulfidic sediments: Exploring a biogeochemical extreme to resolve fundamental sulfur biomineralisation pathways. The hyper-accumulation of monosulfidic sediments has a directsocial, economic and environmental impact on communities in many parts of Australia, including highly valued wetland systems such as the Ramsar wetlands of the lower Murray Darling Basin and internationally recognised Peel-Harvey Estuary of WA. Maintenance dredging of these materials alone costs the nation millions of dollars annually. The hyper monosulfidic sediments are also linked to severe environmental impacts. This project will inform how these materials develop and accumulate. This new knowledge will be of immediate relevance for the management of eutrophic estuaries.Read moreRead less
The role of natural selection in macroevolution: a case study examining convergence of form and function in marine predator guilds. Darwin's theory of evolution natural selection is one of the most successful in the history of science and provides the framework for modern biology: however, areas of debate or uncertainty are often misinterpreted by non-scientists as indication of fundamental flaws in the theory. New 'hi-tech' tools provide the opportunity to re-examine these areas, and also to de ....The role of natural selection in macroevolution: a case study examining convergence of form and function in marine predator guilds. Darwin's theory of evolution natural selection is one of the most successful in the history of science and provides the framework for modern biology: however, areas of debate or uncertainty are often misinterpreted by non-scientists as indication of fundamental flaws in the theory. New 'hi-tech' tools provide the opportunity to re-examine these areas, and also to demonstrate the process of science to the public. The new tool is Computational Biomechanics, the future of studying biological form, and this project will further develop the leading role of Australian research in this technology which has applications for palaeontology, environmental management, medical science, and the next generation of engineering using 'biomaterials'.Read moreRead less
Temperate trophic cascades: impacts of seal foraging on benthic community dynamics. Effective Marine Protected Area management across Australia requires guidance from rigorous strategic research. The project will investigate opposing activities that provoke ecosystem collapse (overharvesting, grazing) or recovery (marine park protection) and provide advice to improve effectiveness of marine conservation strategies in New South Wales and South Australia.
Orientation in the pelagic environment: how do larval marine fish find their way home? This study will determine what senses tiny fish larvae use to orientate in the ocean and to influence where currents disperse them. Because larval dispersal determines the spatial extent of fish populations, this knowledge is important for management of marine fisheries and the design and operation of marine parks.
Discovery Early Career Researcher Award - Grant ID: DE120102614
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Monitoring coral reef health from space: how herbivore behaviour alters reef structure. This research seeks to understand how both fishing and marine reserves can shape coral reef landscapes by changing the way herbivores behave while foraging for food. It will use an innovative approach combining ecological theory with satellite imagery, resulting in a predictive tool for resource managers both in Australia and globally.