Physical Sciences and Mathematics Commons^™

Vegetation Changes In Southeast Australian Temperate Grasslands, D. L. Garden, T. P. Bolger

IGC Proceedings (1997-2023)

In temperate areas of southeast Australia, the combined effects of tree clearing, grazing, application of fertilizer and the introduction of exotic species have modified the original grasslands. This paper describes these changes and attempts to explain them in terms of ecological principles derived from North American grasslands. Stability of the original grasslands appears to have been due to the lack of disturbance and the slow rates of nitrogen (N) cycling within them. Increased N cycling after disturbance has allowed invasion of species better adapted to higher N status, particularly exotic annual grasses and weeds. The present composition of grasslands, in …

The Response Of Selected Temperate Forages To Increasing Summer Drought Conditions And High Summer Temperatures In Northern Victoria, Australia, M. E. Rogers, A. R. Lawson, K. B. Kelly, W. J. Wales, J. L. Jacobs

IGC Proceedings (1997-2023)

In the dairy region of northern Victoria, Australia, the performance of temperate perennial dairy pastures is often poor over summer due to a combination of high temperatures and limited water availability that can restrict dry matter production and plant survival. A series of field experiments examined the effects of heat and restricted irrigation (as a consequence of drought) on the growth and nutritive characteristics of selected forage species, and whether survival under experimental conditions was influenced by plant genotype, irrigation and grazing management strategies, as well as endophyte presence. The major focus was on perennial ryegrass.

Detailed sampling of perennial …

Thirty Critical Research Needs For Managing An Ecologically And Culturally Unique Remote Marine Environment: The Kimberley Region Of Western Australia, C. Cvitanovic, M. Mackay, R. Kelly, S. K. Wilson, K. Waples, K. L. Nash, E. I. Van Putten, S. Field, T. Botterill-James, B. J. Austin, L. E. Beckley, F. Boschetti, M. Depczynski, R. J. Dobbs, R. D. Evans, M. Feng, R. K. Goater, A. R. Halford, A. Kendrick, G. A. Kendrick, G. D. B. Lincoln, L. J. Ludgerus, R. J. Lowe, Kathryn Mcmahon, J. K. Munro, S. J. Newman, C. Nutt, L. Pearson, M. J. O'Leary, Z. T. Richards, W. D. Robbins, D. I. Rogers, Chandra P. Salgado Kent, V. Schoepf, M. J. Travers, M. Thums, A. D. Tucker, J. N. Underwood, S. Whiting, D. Matthews, Dambimangari Aboriginal Corporation

Research outputs 2014 to 2021

The Kimberley marine environment in Western Australia is widely recognised for its outstanding natural features, vast and remote sea and landscapes, and Indigenous cultural significance. To ensure that adequate baseline information is available to understand, monitor and manage this remote and relatively understudied region, scientific exploration was undertaken between 2012 and 2018 as part of the Kimberley Marine Research Program (KMRP). Whilst this program generated significant amounts of new knowledge about the region, important research gaps remain, that if answered, should improve the capacity of managers to conserve the region's values more effectively. Here, we apply established participatory horizon scanning …

Phosphorus Fertilizer And Stocking Rate Effects On Soil Microbial Biomass Of A Long-Term Dairy Farmlet Experiment, S. R. Aarons, C. R. O’Connor, C. J. P. Gourley

IGC Proceedings (1997-2023)

The effects of a range of P fertilizer rates and dairy cow stocking rates on microbial biomass carbon and phosphorus were compared in a long-term farmlet trial in southeastern Australia. Pastures were stocked at 2, 3, or 4 cows/ha and received fertilizer at rates of 0, 35, 70 or 140 kgP/ha. There was no effect of either P fertilizer rate or stocking rate on microbial biomass C from 1995 to 1998. Increasing P application rate significantly increased the chloroform-released microbial P flush measured, but stocking rate had no effect on microbial P. There were significant temporal changes, with the seasonal …

Classroom To Paddock: Delivery Of Grazing Land Management Education In The Northern Territory, Australia, Ellena Hannah

IGC Proceedings (1997-2023)

No abstract provided.

Groundwater Dependent Ecosystem Identification And Monitoring Protocols From Australia To California's Sustainability Groundwater Management Act, Marino J. Hernandez

Master's Projects and Capstones

In the past, California’s unregulated groundwater supply has suffered from a legacy of groundwater depletion, loss of aquifer storage, land subsidence, seawater intrusion, and degradation of ecosystems dependent on the interconnectivity of groundwater. Prior to 2016, California had yet to create direct legislation that regulated groundwater management until the Sustainable Groundwater Management Act (SGMA). SGMA empowered local agencies called Groundwater Sustainability Agencies (GSAs) to manage groundwater resources within a specific criterion using locally sourced methods and practices suitable for each individual groundwater basin. One criterion in particular is relatively new for water resource management, Groundwater Dependent Ecosystems (GDEs). In this …

What A Load Of Rubbish! The Efficacy Of Theory Of Planned Behaviour And Norm Activation Model In Predicting Visitors’ Binning Behaviour In National Parks, Kourosh Esfandiar, Ross Dowling, Joanna Pearce, Edmund Goh

Research outputs 2014 to 2021

© 2021 The Authors A specific concern for many park managers is the generation of waste by visitors. One way to combat this issue in national parks is to encourage visitors to put their litter in a bin. This study investigates binning behaviour, as a type of pro-environmental behaviour, of visitors to Yanchep National Park, Australia. Using structural equation modelling, this study tested an integrated structural model combining the theory of planned behaviour and the norm-activation model with data from 219 visitors to this park. The study tried to move away from measuring visitors' pro-environmental intention and instead gathered data …

Review Of Seeking An Aurora By Elizabeth Pulford, Katie E. Gosman

Library Intern Book Reviews

No abstract provided.

The Efficacy Of Aligning Lessons Learnt From Significant Bushfire Incidents To The Organisational Stratum, Jennifer Medbury, David J. Brooks, Michael Coole

Research outputs 2014 to 2021

Australia's bushfire seasons are expected to become longer and more severe due to the effects of climate change and an increasing population living in rural-urban fringes. Social and economic vulnerability to extreme natural hazards means that Australia’s emergency services sector plays a significant role in community safety and wellbeing. Therefore, it is important that the sector continually improves. Australia has a long history of conducting external reviews into significant bushfires. While these reviews receive good support and seek to identify relevant lessons, barriers remain that prevent these lessons from being effectively learnt. It is possible that some of these barriers …