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03.02.i06. Yu-Yun Chen profile photo.jpg

My primary research interest is the mechanisms maintaining forest biodiversity and trends in a changing environment. I particularly focus on plant reproductive phenology and dynamics of early life stages. I began with long-term monitoring of flower/seed falls and seedlings in Pasoh Forest Reserve, Malaysia, and expanded my research to subtropical areas in Taiwan. With the long-term flower data, I would like to identify proximate triggers for flowering phenology in tree species and to explore possible ultimate causes of flowering patterns. In addition, through monitoring seedlings in the same forests, I would like to investigate the relationship between seeding phenology and dynamics and the impact of climate change on this relationship.


Forest dynamics; plant phenology; evolutionary ecology; quantitative ecology

Quantitative Ecology Lab, B235




CIRES, College of Environmental Studies, National Dong Hwa University. 

No.1, Sec.2, Da Hsueh Rd., Shoufeng, Hualien 974301, Taiwan.

Active Projects

  • Exploring diversity and the evolution of forest phenology

Key Publications

  • Akiko Satake, Yu-Yun Chen; Christine Fletcher; Yoshiko Kosugi (2019, Jan). Drought and cool temperature cue general flowering synergistically in the aseasonal tropical forests of Southeast Asia. Ecological Research. 34: 40-49.

  • Yu-Yun Chen, Akiko Satake, I-Fang Sun, Yoshiko Kosugi, Makoto Tani, Shinya Numata, Stephen P. Hubbell, Christine Fletcher, Md. Noor Nur Supardi, S. Joseph Wright (2018, Mar). Species-specific flowering cues among general flowering Shorea species at the Pasoh Research Forest, Malaysia. Journal of Ecology. 106: 586-598.

  • Jacob Usinowicz, Chia-Hao Chang-Yang, Yu-Yun Chen, James S. Clark, Christine Fletcher, Nancy C. Garwood, Zhanqing Hao, Jill Johnstone, Yiching Lin, Margaret R. Metz, Takashi Masaki, Tohru Nakashizuka, I-Fang Sun, Renato Valencia, Yunyun Wang, Jess K. Zimmerman, Anthony R. Ives, S. Joseph Wright (2017, Oct). Temporal coexistence mechanisms contribute to the latitudinal gradient in forest diversity. Nature.

  • Tetsuro Hosaka, Takakazu Yumoto, Yu-Yun Chen, I-Fang Sun, S. Joseph Wright, Shinya Numata, and Noor Md Nur Supardi (2016, Nov). Responses of predispersal seed predators to sequential flowering of Dipterocarps in Malaysia. Biotropica. 49:177-185.

  • S. Joseph Wright, I-Fang Sun, Maria Pickering, Christine D. Fletcher, Yu-Yun Chen (2015, Oct). Long-term changes in liana loads and tree dynamics in a Malaysian forest. Ecology, 96(10): 2748-2757.

CIRES Members

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