Dr Ceridwen (Crid) Fraser
I am broadly interested in the influence of environmental conditions, including past and future environmental change, on global patterns of biodiversity. I use a wide range of techniques to address research questions, including ecological and genetic approaches, and have a particular focus on the high-latitude ecosystems of the Southern Hemisphere (the sub-Antarctic islands and Antarctica), which offer unique opportunities for testing hypotheses about dispersal and survival in extreme environments.
I have an undergraduate degree in conserving cultural materials (paper conservation), but did another in marine science when an early-life crisis sent me hurtling back to my dream of being a marine biologist. My Honours year was spent working on polychaete worms at the Australian Museum. I then moved across the ditch to study for my PhD in the Department of Zoology at the University of Otago (New Zealand), graduating in 2009. I worked as a postdoctoral fellow with the Allan Wilson Centre for Molecular Ecology and Evolution (hosted at the University of Otago), followed by a postdoc in the Biological Control and Spatial Ecology group at the Université Libre de Bruxelles, Belgium, before moving to the Australian National University in mid 2012 to take up a position as a lecturer in the Fenner School of Environment and Society.
Current key projects: click here
Main project: Volcanoes as safe-havens for Antarctic species during ice ages - ARC (DECRA) project, January 2014 - December 2016
More information: click here
Recent, past projects: click here
Collecting bull-kelp (Durvillaea antarctica) samples on subantarctic Marion Island, 2007
I have several upcoming projects that could involve Honours or postgraduate students, such as:
- The role of volcanoes in maintaining biodiversity in the Antarctic throughout past ice ages. Specifically, I have some exciting opportunities for Master and Honours students using DNA to address this question in
--> Antarctic mosses
--> Antarctic invertebrates (springtails)
- Long-distance dispersal of parasites with their hosts
- Determining the sources of invasive species on sub-Antarctic islands
- Southward range shifts in south-eastern Australian species
Katie Moon, PhD student, 2014 -
Katie is studying population connectivity, host specificity and genetic / species diversity in ticks and other ectoparasites affecting various penguin species throughout the Southern Hemisphere. For more information, see Katie's web page, by clicking here.
Katie collecting parasites from a Little Blue Penguin
Laura Wilson, PhD student, 2014 -
Laura is studying the connectivity of tropical marine ecosystems in north-western Australasia with a focus on Sargassum seaweed rafting. Laura's project will use genetic (phylogeographic) and remote sensing approaches. For more information, see Laura's web page, by clicking here.
Callum Blake, Honours student, 2015-
Callum is looking at the broad-scale distribution of the phytomyxean gall-forming parasite Maullinia associated with southern bull kelp species (Durvillaea). Callum will also use SCUBA diving to measure the impact of these pathogens on bull kelp populations along the southeastern Australian and Chilean coasts.
- Laura Smith: Identifying glacial refugia through meta-analysis of genetic diversity in Antarctic springtails
- Xenia Weber: Identifying cryptic species in southern bull kelp in Australia
- Katie Moon: Evolutionary history and dispersal capacity of Little Blue Penguin Ticks
- Amy Macris: Genetic diversity in alpine tree frogs (Litoria verreauxii alpina)
Independent Research Project students:
- Alex Harrison: Pumice rafting as a transportation agent for marine life: relationships between clast volume / porosity and biomass / diversity
- Laura Smith: Assessing marine worm dispersal potential among estuaries in NSW
- Victor Wang: Reproductive and dispersal strategies underpin density dependent demographic processes
- Wei (Cheng) Tan: Ectoparasite dispersal by an aquatic bird
Grants are drawn from ARIES. To add Projects or Grants please contact your College Research Office.
- Volcanoes as safe-havens for Antarctic species during ice ages (Primary Investigator)