Personal profile
Biography
I am a behavioral ecologist and ecophysiologist specializing in studying the plasticity of reproductive behavior and life-history strategies in animals in response to a changing world, encompassing both social contexts and physical environments. I completed my PhD at the Australian National University in 2023, investigating the short-term plasticity and long-term costs of male reproduction and the effects of early-life environment stress on subsequent adult behaviour, growth, reproductive output and lifespan. During my doctoral studies, I received support from the Australian Government Research Training Program International Scholarship, the Fee-Offset Scholarship, and a Taiwanese Government Scholarship to Study Abroad.
Currently, I hold a postdoctoral research position at ANU, where I collaborate with Prof. Michael Jennions and Dr. Megan Head.
Research Interests
My research primarily focuses on fish, including:
(1) Short-term reproductive plasticity
- Can males increase their sperm production when more females are present in their vicinity?
- Can males control the timing of sperm release using their intermittent organ?
- Do animals modify their nest design (location, structure, material) and nest-building behaviors based on ambient conditions such as water velocity?
(2) Long-term reproductive costs
- Do mated individuals experience accelerated aging and reduced lifespan compared to virgins?
- Which reproductive components are more costly for males: mating behaviors (courtship, male-male fights) or gamete production (ejaculation, sperm traits)?
(3) Effects of environmental stress on life-history trajectory
- How do freshwater fish adjust their life-history strategies when living in a salinized aquatic environment?
- When adaptive plasticity relies on stable environmental cues, how do animals adjust their growth, body condition, and reproductive investments in response to fluctuating environmental conditions such as salinity?
- Does reduced food availability impact an individual's ability to cope with other environmental stresses, such as high temperatures?
Research student supervision
- Registered to supervise
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Collaborations and top research areas from the last five years
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Do environmental fluctuations during development affect trait variation? An experimental test with salinity
Chung, M.-H. J., Noble, D. W. A. & Jennions, M. D., 2 Jun 2025, (E-pub ahead of print) In: Oikos. p. 1-15 15 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Fluctuating salinity during development impacts fish life histories
Chung, M. H. J., Noble, D. W. A., Fox, R. J., Harrison, L. M. & Jennions, M. D., Sept 2025, In: Journal of Animal Ecology. 94, 9, p. 1848-1865 18 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Temperature-dependent differences in male and female life history responses to a period of food limitation during development
De Moura Campos, D., Chung, M.-H. J., Lawrence, E., Jennions, M. D. & Head, M. L., 24 Mar 2025, In: Journal of Animal Ecology. 94, 5, 12 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Does losing reduce the tendency to engage with rivals to reach mates? An experimental test
Zang, C., Chung, M. H. J., Neeman, T., Harrison, L., Vinogradov, I. M. & Jennions, M. D., 1 Jul 2024, In: Behavioral Ecology. 35, 4, p. 1-9 arae037.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Effects of inbreeding and elevated rearing temperatures on strategic sperm investment
Chung, M. H. J., Mahmud-Al-Hasan, M., Jennions, M. D. & Head, M. L., 1 Jul 2024, In: Behavioral Ecology. 35, 4, p. 1-10 arae044.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus)