Shannon Kaiser is a doctoral researcher in the Faculty of Science and Engineering at Macquarie University and one of the University’s highest-achieving PhD candidates. In 2025, he was awarded the Excellence in Higher Degree Research Award, recognising him as the top-ranked HDR student among more than 700 PhD and MRes candidates across the Faculty.

His research examines the impacts of globally relevant pollutants on aquatic ecosystems, with a particular focus on the long-term ecological effects of coal-mine wastewater and the impacts of aerially deployed long-term fire retardants. Using amphibians as sensitive bioindicators, Shannon integrates laboratory experiments, field studies, and advanced ecological analysis to assess sub-lethal effects of contaminants on behaviour, health, and disease dynamics.

A strong emphasis of his work is ethical, decision-relevant science. Rather than relying on lethal endpoints, he employs refined sub-lethal approaches that better reflect real-world environmental exposure while aligning with best-practice animal-ethics frameworks. His research addresses critical knowledge gaps at the intersection of fire management, pollution, and freshwater biodiversity conservation.

Shannon has also supervised and mentored multiple international students and early-career researchers, contributing to collaborative, interdisciplinary research projects. His work tackles understudied but policy-relevant questions, drawing parallels to the legacy of Silent Spring in highlighting how ecological degradation can occur quietly—and be overlooked—until key species begin to disappear.

Achievements

Shannon has presented his research at two international conferences, two national conferences, and multiple professional and scientific society meetings. He has secured over $50,000 in competitive research funding and has supervised several international research students.

His publication record includes five peer-reviewed papers prior to PhD completion, including co-authorship on a Nature paper demonstrating that artificial refuges can reduce infection by the globally devastating amphibian pathogen Batrachochytrium dendrobatidis. His Master’s research produced multiple high-impact findings, including evidence for sex-specific responses of invasive cane toads to wildfire exposure, parasite clearance associated with fire-affected habitats, altered movement ecology with global implications, and reduced ecological risk to Komodo dragons from invasive amphibians.

Shannon has received multiple communication and presentation awards, including Best 3-Minute Thesis Presentation (Australasian Evolutionary Society Conference, 2022) and Best Poster Presentation (Master of Research, Macquarie University, 2021). His work has been featured in ABC News and 7 News, both online and on national television. Further, he was featured in a MQ postgraduate success campaign video (click here).

Teaching Experience

Shannon is an experienced university educator, having taught continuously since his second year of undergraduate study. His teaching spans ecology, evolution, behaviour, and foundational sciences, with a strong focus on student engagement and conceptual understanding.

• Biol1310 - Organisms to Ecosystems [2022]
• Biol1320 - Biological Basis of Behaviour [2020 – 2022]
• Biol2410 - Ecology [2022 – 2025]
• Biol3510 - Vertebrate Evolution [2022 – 2023]
• Chem1001 - Foundations of Chemical Sciences (PAL) [2020]

Academic history

Shannon has demonstrated consistent academic excellence across all stages of his education. After leaving high school in Year 11, he returned to study through TAFE, achieving an ATAR of 99.95. He completed a Bachelor of Science at the University of Wollongong, where he was awarded Top Student in Biology and was a finalist for the University’s most prestigious undergraduate award (the Robert Hope Medal).

He completed a Master of Research with a merit-based scholarship in his second year and is now completing his PhD at Macquarie University. Together, his academic trajectory reflects not only sustained research excellence and teaching capability, but also exceptional resilience and professional maturity.