Our research encompasses a broad spectrum of ecological work, from characterising aquatic biodiversity to examining the impacts of anthropogenic environmental change on freshwater animals and ecosystems. Our work combines field surveys with laboratory experiments and statistical modelling to provide insights into the sustainability and resilience of freshwater ecosystems.
Want to learn more and maybe get your feet wet?
Drop me an email at JiaHuan.Liew@utas.edu.au
Impacts of Anthropogenic activities on animal ecology and movement
Climate change impacts on cold-adapted species
Natural and man-made drivers of freshwater food web patterns
Ecological applications of stable isotopes
Drivers of biological invasion in freshwater environments
Impact of invasive species on native biodiversity
I am a freshwater ecologist with an interest in animal assemblages and their interactions with the environment. I am interested in freshwater animal communities and the ecological processes that govern them. I employ a mix of empirical measurements and statistical modelling in my research. My work commonly involves the study of food webs which provide insights into resource availability and utilisation. This can often be useful for deducing how, or how well, key ecosystem processes are functioning.
I am also interested in the conservation impacts of the international wildlife trade, with a focus on key drivers of the trade and tools that help us identify patterns in the movement of wild animal products across borders.
Find out more here!
PhD, University of Hong Kong, Hong Kong
2021 – Present
Co-supervised with Prof. David DUDGEON
PhD, National University of Singapore, Singapore
2021– Present
Co-supervised with Assoc. Prof. Darren CJ YEO
Hons, University of Tasmania, Australia
2025
Hons, University of Tasmania, Australia
2025
Co-supervised with Assoc. Prof. Christopher BURRIDGE
MPhil, Lingnan University, Hong Kong
2022 – 2025
Co-supervised with Asst. Prof. Anthony LAU
MPhil, Lingnan University, Hong Kong
2021 – 2023
Co-supervised with Dr. Yik Hei SUNG
Post-Doc Fellow, Lingnan University, Hong Kong
2021 – 2023
Research Assistant, Lingnan University, Hong Kong
Research Assistant, Lingnan University, Hong Kong
Lakes in the Central Plateau region in Tasmania are diverse and ecologically significant, exhibiting high degrees of species endemism. They also provide key ecosystem services, including hydropower generation, irrigation, and recreational fisheries. However, these critical ecosystems face growing threats from changes in water-level regime and increasing frequency of extreme temperatures with climate change. Moreover, management of these systems become more complex when biodiversity conservation goals come into conflict with ecosystem service provision.
Network-based models, which conceptualise ecological communities as interconnected systems of species, environmental variables, and energy flows, are powerful tools for optimising trade-offs between conservation and ecosystem service provision, particularly under a rapidly changing climate. Yet, these approaches are constrained by lack of empirical data on population dynamics, trophic interactions, and environmental fluctuations in many threatened ecosystems. This project will close key data gaps and deliver robust, predictive models that can be embedded in adaptive-management frameworks to safeguard these unique inland waters.
The project aims to:
Deliver dynamic models of population dynamics and species interactions from systematic surveys of lake communities
Empirically test and refine model predictions through targeted lake‐ and mesocosm-scale manipulative experiments.
Generate decision-support scenarios identifying optimal trade-offs between biodiversity outcomes and ecosystem service provision.
This research project will be conducted in close collaboration with Inland Fisheries Service Tasmania, Hydro Tasmania, and Anglers Alliance Tasmania, providing scope to incorporate citizen science data streams and translate research findings into decision-support tools with major stakeholders.
Application closes: 01 April 2026
If you are interested in working on freshwater related projects, either as an undergraduate, graduate student or post-doc, feel free to email me to discuss about your research interest and ideas.
University of Tasmania
School of Natural Sciences
JiaHuan.Liew@utas.edu.au
Photos from OI Studios/my own