[Doctoral Dissertation Defense Presentation]
(Terrestrial Biodiversity and Ecosystems)

時間：2026. 0​6. 29   ​Mon. 1​4:00

地 點：細胞與個體生物學研究所1樓演講廳

演講者：陳正為 先生
                  Ph.D. Candidate
                  ^1. TIGP Biodiversity Program, Academia Sinica
​                  ^2. Biodiversity Research Center, Academia Sinica
​                  ^3. Department of Life Science, National Taiwan Normal University
                            
講題：From Species to Flora: A Fern Odyssey

主持人：鍾國芳研究員

Abstract
         Life on earth is vanishing at a pace unmatched in human history, even as it continues to sustain the foundations of our existence. Species, the fundamental units of biodiversity, form the basis of conservation planning, ecological understanding, and biological communication. My dissertation addresses a deceptively simple but profoundly important question in studies of biodiversity: how many fern species are there? To answer this, I investigate the evolutionary processes that generate species diversity and evaluate integrative approaches to species delimitation. By clarifying speciation mechanisms and refining species boundaries, this work establishes a more rigorous framework for biodiversity assessment. I further demonstrate how integrative systematic research can strengthen floristic studies, using Vietnam—an exceptionally diverse and taxonomically complex region for ferns—as a case study. Together, these findings underscore the necessity of uniting evolutionary biology, species delimitation, and floristic documentation to better understand and safeguard biodiversity in a rapidly changing world.

Keywords: gametophytes, reticulate evolution, speciation, systematics, taxonomy

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