Cassia Read
Cassia is doing a PhD co-supervised by Jane Elith, Mark Burgman, John Morgan (La Trobe) and Peter. Her project is "The role of biological soil crusts in vegetation dynamics of the Murray Mallee bioregion, Victoria." Brief project description
The biological soil crust is the diverse community of moss, lichen, algae, fungi and cyanobacteria, existing at the soil surface in ecosystems of low canopy cover. Although the biological crust has been linked to ecological functions such as nutrient cycling, soil stability and seedling establishment the functional importance of the biological crust in landscape health is still poorly understood, particularly its role in vegetation dynamics of hot deserts such as in Australia. There have been very few surveys documenting patterns in the composition and distribution of soil crusts in Victoria. Further, the role of soil crusts in establishment and survival of vascular plants in Australia is largely unstudied, despite significant implications for the management of remnant vegetation. This project will explore through field work and statistical modelling, patterns in the distribution and composition of biological soil crust in the Murray Mallee bioregion of Victoria. This project will go on to investigate the role of the crust in the germination and establishment of vascular plants through field and glass-house trials. Finally this project will synthesise results from this study and the scientific literature to develop a model of the role of biological crusts in vegetation dynamics of the Murray Mallee. This information will be a valuable resource for the management, conservation and restoration of remnant vegetation in semi-arid ecosystems.
contact Cassia at cread3<at>pgrad.unimelb.edu.au
|