Reintroduction of ecosystem engineers as a woodland restoration tool. Can we help restore woodlands by reintroducing extinct native mammals? Through a strategic partnership combining innovative research and conservation action, this project will investigate how returning extinct 'ecosystem engineers' could be used as a tool for restoring healthy temperate woodland ecosystems.
Understanding grassy woodlands as whole ecosystems. Restoring Australia's once vast grassy woodlands needs a sound understanding of the whole ecosystem and robust scientific evidence to inform conservation action. This project will generate such evidence by establishing a National Outdoor Laboratory to inform the sustainable management of our nation's precious remaining woodlands.
Comparative eco-physiology of two contrasting arid-zone woodlands in Central Australia: hydrological niche separation and ecosystem resilience. This proposal addresses two fundamental questions: how do co-occurring species co-exist and why do Australian ecosystems have larger ecosystem water-use-efficiencies than those in the USA? This proposal will: determine the resilience of two contrasting arid-zone woodlands; compare variation in hydraulic-related plant traits across co-existing species; an ....Comparative eco-physiology of two contrasting arid-zone woodlands in Central Australia: hydrological niche separation and ecosystem resilience. This proposal addresses two fundamental questions: how do co-occurring species co-exist and why do Australian ecosystems have larger ecosystem water-use-efficiencies than those in the USA? This proposal will: determine the resilience of two contrasting arid-zone woodlands; compare variation in hydraulic-related plant traits across co-existing species; and, determine the relative contribution of changes in assimilation and stomatal conductance to variation (across species and time) in water-use-efficiency. Outcomes of this work include a mechanistic understanding of the behaviour of water-limited woodlands in current and future climates. This is significant because such biomes are globally important and are home to two billion people. Read moreRead less
Ecosystem quality and herbivore dynamics in tropical rainforests fragmented by deforestation. After logging, large expanses of south-east Asian rainforests are being converted to oil palm plantations. This is occurring within a mega-diverse area of global ecological and conservation significance yet the ecological consequences of this process are poorly understood. This project will examine patterns of changes in key arthropod herbivores, their food resources and natural enemies within experimen ....Ecosystem quality and herbivore dynamics in tropical rainforests fragmented by deforestation. After logging, large expanses of south-east Asian rainforests are being converted to oil palm plantations. This is occurring within a mega-diverse area of global ecological and conservation significance yet the ecological consequences of this process are poorly understood. This project will examine patterns of changes in key arthropod herbivores, their food resources and natural enemies within experimentally fragmented post-logging forests. The project will quantify the effects of fragment size, location and vegetation upon the herbivore dynamics, their impact on the vegetation and their interactions with their natural enemies. The project aid understanding the dynamics of the ecosystems involved and the services they provide.Read moreRead less
The spatial energetics of pollination failure in habitat restoration. This project addresses the reasons for pollination failure of threatened plant species during habitat restoration. Specifically, the project will determine the role of energetic constraints on pollinator movement in the hostile landscape matrix surrounding urban woodland remnants, and model future scenarios for restoring natural functioning woodland ecosystems.
Fauna, fuel and fire: effects of animals on bushfire risk. This project aims to determine the extent that animals influence fire regimes through effects on fuel load and characteristics. Minimising the risk of large, severe bushfires, while conserving native species is one of the greatest challenges facing managers of fire-prone ecosystems globally. Using a powerful combination of landscape-scale field observations, experimental manipulations of animal densities, and modelling, the project expec ....Fauna, fuel and fire: effects of animals on bushfire risk. This project aims to determine the extent that animals influence fire regimes through effects on fuel load and characteristics. Minimising the risk of large, severe bushfires, while conserving native species is one of the greatest challenges facing managers of fire-prone ecosystems globally. Using a powerful combination of landscape-scale field observations, experimental manipulations of animal densities, and modelling, the project expects to quantify interactions between animals, bushfire fuel and fire regimes in south eastern Australian forests, woodlands and scrublands. This evidence should benefit the design of integrated, efficient, and complementary strategies for fire and fauna management in Australia’s extensive fire-prone ecosystems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100026
Funder
Australian Research Council
Funding Amount
$379,536.00
Summary
Insect diversity and carrion decomposition in modified landscapes. Decomposition is fundamental to the recycling of nutrients in ecosystems, yet it is not known how different combinations of decomposer insects contribute to this important ecosystem service. This project includes a series of experiments to examine how insects affect carrion decomposition rates, and how this depends on environmental context. The project aims to show how decomposition is maintained in variable and changing landscap ....Insect diversity and carrion decomposition in modified landscapes. Decomposition is fundamental to the recycling of nutrients in ecosystems, yet it is not known how different combinations of decomposer insects contribute to this important ecosystem service. This project includes a series of experiments to examine how insects affect carrion decomposition rates, and how this depends on environmental context. The project aims to show how decomposition is maintained in variable and changing landscapes by revealing when the loss or gain of species will alter this critical ecological process. This will have implications for biodiversity-ecosystem function theory, and applications to biodiversity management and ecosystem restoration.Read moreRead less
Hydraulic control on water use, growth and survival in tropical rainforest. This project aims to measure drought-related limits to water transport in the woody xylem tissue of trees in Australian tropical rainforests, to understand how this influences tree water use, photosynthesis, health and mortality risk. Tropical rainforests are sensitive to climate variability, especially drought, but this sensitivity is poorly understood, despite large effects regionally and globally. This project will co ....Hydraulic control on water use, growth and survival in tropical rainforest. This project aims to measure drought-related limits to water transport in the woody xylem tissue of trees in Australian tropical rainforests, to understand how this influences tree water use, photosynthesis, health and mortality risk. Tropical rainforests are sensitive to climate variability, especially drought, but this sensitivity is poorly understood, despite large effects regionally and globally. This project will compare forests that contrast strongly in seasonal drought stress, and use the information to develop a model designed for species-diverse forest, with subsequent potential global application. The understanding gained will enable widely applicable advances designed to feed through rapidly to regional- and global-scale models that inform land use, economic and social policy-making.Read moreRead less
Unsaturation of vapour pressure inside leaves: fundamental, but unknown. This project aims to determine when and to what extent the air inside leaves becomes unsaturated with water vapour. All current interpretation and modelling of leaf gas exchange assumes saturation under all circumstances. Compelling evidence has been obtained that suggests this is not true under moderate air vapour pressure deficits. A novel technique will be employed to assess the water vapour concentration of the air insi ....Unsaturation of vapour pressure inside leaves: fundamental, but unknown. This project aims to determine when and to what extent the air inside leaves becomes unsaturated with water vapour. All current interpretation and modelling of leaf gas exchange assumes saturation under all circumstances. Compelling evidence has been obtained that suggests this is not true under moderate air vapour pressure deficits. A novel technique will be employed to assess the water vapour concentration of the air inside leaves based on stable isotope analysis of carbon dioxide and water vapour exchanged between leaves and air. The project is expected to provide fundamental knowledge about how stomata regulate photosynthesis and water use, with significant implications for modelling vegetation function and for improving the performance of crop plants.Read moreRead less
Remotely sensed forest water use in space and time. Remotely sensed forest water use in space and time. This project aims to develop and apply new methods to scale forest water use from plot to catchment-level, using relationships between plot-level annual evapotranspiration and biophysical and biochemical properties of stands detectable by unmanned aircraft systems and other remote sensing platforms. Australia's water security depends on understanding how changes in forests from disturbance and ....Remotely sensed forest water use in space and time. Remotely sensed forest water use in space and time. This project aims to develop and apply new methods to scale forest water use from plot to catchment-level, using relationships between plot-level annual evapotranspiration and biophysical and biochemical properties of stands detectable by unmanned aircraft systems and other remote sensing platforms. Australia's water security depends on understanding how changes in forests from disturbance and climate change influence catchment water yields. This project will estimate water yields over time and space in ungauged catchments with disturbed eucalypt forests. This research is expected to enable more effective risk mitigation and planning for augmentations; improved fire management strategies; and better water management of the Murray Darling Basin.Read moreRead less