Minimum sizes and habitat areas for viable populations. This project will address two critical issues in conservation biology: How large do wildlife populations need to be to ensure long-term persistence? How large an area needs to be preserved? At present, no such estimates exist for most species. I will develop realistic population viability analysis (PVA) models (encompassing all threats to persistence) on many bird, mammal, reptile, amphibian, invertebrate and plant species, and estimate the ....Minimum sizes and habitat areas for viable populations. This project will address two critical issues in conservation biology: How large do wildlife populations need to be to ensure long-term persistence? How large an area needs to be preserved? At present, no such estimates exist for most species. I will develop realistic population viability analysis (PVA) models (encompassing all threats to persistence) on many bird, mammal, reptile, amphibian, invertebrate and plant species, and estimate the minimum population sizes and habitat areas required for long-term survival. My prior research has validated the predictive accuracy of PVA. This research will deliver practical guidelines for managing threatened species.Read moreRead less
Demographic change, ageing and the workforce: An integrated model to inform workforce development and planning in Australia. This project will greatly extend our understanding of the impact of demographic change and ageing on the workforce. It will develop a conceptual framework to strategically inform workforce development and a workforce planning model to assist Australian workplaces to respond to the challenge of demographic change and ageing. The need to develop a better understanding of, an ....Demographic change, ageing and the workforce: An integrated model to inform workforce development and planning in Australia. This project will greatly extend our understanding of the impact of demographic change and ageing on the workforce. It will develop a conceptual framework to strategically inform workforce development and a workforce planning model to assist Australian workplaces to respond to the challenge of demographic change and ageing. The need to develop a better understanding of, and respond to, the implications of demographic change and ageing for workforce development in Australia has been recognised nationally through the National Strategy for Ageing and is of direct relevance to the ARC's national research priority Ageing Well, Ageing Productively. Read moreRead less
The demographic consequences of migration to, from and within Australia. The long-term demographic consequences of migration to, from and within Australia, and the dynamic pathways that produced them, will be studied. This will involve the identification of the specific contributions made by international and internal migration to the age and sex population compositions of nine birthplace-specific populations from 1981 to 2011. To do this, publically available data will be collected and augmente ....The demographic consequences of migration to, from and within Australia. The long-term demographic consequences of migration to, from and within Australia, and the dynamic pathways that produced them, will be studied. This will involve the identification of the specific contributions made by international and internal migration to the age and sex population compositions of nine birthplace-specific populations from 1981 to 2011. To do this, publically available data will be collected and augmented with statistical methods to provide a complete, consistent account of population change for around 60 subnational areas. As migration and population change underpins many aspects of societal change in Australia, this research aims to provide an invaluable resource to other scientists and policy makers.Read moreRead less
Improved Indigenous population projections for policy and planning. This project will use a range of methods to understand the population dynamics of the Australian Aboriginal and Torres Strait Islander (Indigenous) population. This information will allow policy makers to plan and target resources and help Indigenous organisations understand what is happening to the population in their communities.
Causes and consequences of population turnover in the Northern Territory. The Northern Territory experiences an extraordinarily high rate of population turnover. Approximately one quarter (compared to less than 10% for most other states) of the Territory's resident population in 2001 had lived somewhere else 5 years earlier. The research will examine the characteristics and causes of this turnover as well as its long-term implications for the composition and associated planning capacity of the N ....Causes and consequences of population turnover in the Northern Territory. The Northern Territory experiences an extraordinarily high rate of population turnover. Approximately one quarter (compared to less than 10% for most other states) of the Territory's resident population in 2001 had lived somewhere else 5 years earlier. The research will examine the characteristics and causes of this turnover as well as its long-term implications for the composition and associated planning capacity of the NT population. Of particular interest is the effect of population transience on the establishment, maintenance, and continuation of knowledge systems, both desert and tropical.Read moreRead less
Plant-herbivore interactions: a model two-species system from northern Australia. The proposed research addresses a critical aspect of magpie goose ecology. Understanding the interaction between the birds and the bulbs is critical to respond effectively to past and threatened losses of important sedge habitats to sea level rise. This knowledge will inform management of the Kakadu World Heritage Site and an iconic waterfowl of great cultural and economic significance. In addition to their importa ....Plant-herbivore interactions: a model two-species system from northern Australia. The proposed research addresses a critical aspect of magpie goose ecology. Understanding the interaction between the birds and the bulbs is critical to respond effectively to past and threatened losses of important sedge habitats to sea level rise. This knowledge will inform management of the Kakadu World Heritage Site and an iconic waterfowl of great cultural and economic significance. In addition to their importance as a Gondwanan relic and sole member of the Family Anseranatidae, the species is an important food-source for Aboriginal people, and tourists travel to the Kakadu wetlands to witness huge dry season congregations.Read moreRead less
Landscape-scale population dynamics of open forests in the Australian monsoon tropics. Over the last century there has been a trend of increasing tree cover in many landscapes. Yet the causes of this globally important ecological phenomenon are poorly understood, but may include the effects of climate, fire, grazing and CO2. We will determine how an area of forest has changed over 50 years in Kakadu National Park, linking forest demography with remote sensing techniques, re-measurement and analy ....Landscape-scale population dynamics of open forests in the Australian monsoon tropics. Over the last century there has been a trend of increasing tree cover in many landscapes. Yet the causes of this globally important ecological phenomenon are poorly understood, but may include the effects of climate, fire, grazing and CO2. We will determine how an area of forest has changed over 50 years in Kakadu National Park, linking forest demography with remote sensing techniques, re-measurement and analysis of long-term tree demography datasets, and simulation models of tree population dynamics on a landscape scale. This will provide a scientific framework to develop sustainable land management and the conservation of Australia's forest biodiversity.Read moreRead less
Ecological-epidemiological models of feral swamp buffalo control in northern Australia. This research is locally, nationally and internationally significant because it 1) improves the capacity of the Northern Territory and its traditional aboriginal owners to manage together this prevalent species in an effort to minimise disturbance to native flora and fauna and to understand the long-term implications of continued proliferation, 2) provides a nationally relevant system to monitor and project t ....Ecological-epidemiological models of feral swamp buffalo control in northern Australia. This research is locally, nationally and internationally significant because it 1) improves the capacity of the Northern Territory and its traditional aboriginal owners to manage together this prevalent species in an effort to minimise disturbance to native flora and fauna and to understand the long-term implications of continued proliferation, 2) provides a nationally relevant system to monitor and project the spread of disease through feral animal populations in Australia, and 3) combines quantitative data and robust analytical tools that can be used as a template for solving many broad-scale feral animal problems around the world.Read moreRead less
Density regulation as a major determinant of population persistence: advancing empirical and theoretical approaches to conserve biodiversity. Without efficient application of limited conservation resources, more species will go extinct and invasive species will continue to proliferate. With a better understanding of extinction processes, a higher benefit:cost ratio will ensure better outcomes for biodiversity. We will directly address (1) the sustainable use of Australia's biodiversity by provid ....Density regulation as a major determinant of population persistence: advancing empirical and theoretical approaches to conserve biodiversity. Without efficient application of limited conservation resources, more species will go extinct and invasive species will continue to proliferate. With a better understanding of extinction processes, a higher benefit:cost ratio will ensure better outcomes for biodiversity. We will directly address (1) the sustainable use of Australia's biodiversity by providing evidence-based support for minimum viable population size targets to avoid extinction; (2) responding to climate change by determining the species- and environmentally specific contexts leading to elevated risks of extinction; and (3) protecting Australia from invasive diseases and pests by determining density targets that maximise eradication success.Read moreRead less
Estimating fishing-related mortality and designing sustainable management protocols for shark fisheries in Northern Australia. Sharks are extremely valuable economically, with the landed catch in the NT alone exceeding $10 million in 2004. The increasing world demand for high-quality protein will necessitate appropriate management so that over-exploitation does not occur as it has in most other shark fisheries worldwide. The proposed project will provide key information that will direct careful ....Estimating fishing-related mortality and designing sustainable management protocols for shark fisheries in Northern Australia. Sharks are extremely valuable economically, with the landed catch in the NT alone exceeding $10 million in 2004. The increasing world demand for high-quality protein will necessitate appropriate management so that over-exploitation does not occur as it has in most other shark fisheries worldwide. The proposed project will provide key information that will direct careful and informed management decisions well into the future. The added benefit of collecting information on the rarer and more susceptible non-target species caught in this fishery will ensure that any negative impacts are reduced. The project will also provide information on the potential impact of illegal fishing by neighbouring countries to our north.Read moreRead less