Current Lab Members
David's research interests encompass the evolution and ecology of reef fishes. The central theme of his research is to understand the role that fishes play on coral reefs; from the origins of herbivory in the Cenozoic to the role of fishes in maintaining reef resilience. The approach is largely based on ecology, although it encompasses functional morphology, molecular phylogenetics, and palaeontology. At larger scales, David's interests include global biogeography and the conservation of coral reefs, particularly the role of biodiversity in ecosystem processes. David has maintained a research lab at James Cook University since 1991, supervising over 60 postgraduate students and teaching 3 undergraduate classes each year.
Growing up close to the coast as a Townsville local sparked Sam’s interest in the ocean at a young age. After some time living abroad, he found his way back to Townsville and enrolled in a Bachelor of Science at James Cook University, majoring in Marine Biology and Paleontology. Sam came to the lab while combining the two fields in a minor project with David Bellwood and started as lab manager shortly afterward. He is passionate about assisting his colleagues to integrate leading technologies and methods in the research and teaching of reef fish ecology and evolution.
Being born where the Brazilian savannah meets the rainforest, Alexandre has always been fascinated with biological diversity. This fascination led him to study Biological Sciences, and during his degree he started working with freshwater fishes. Although these fishes taught him a lot, he decided to fulfill a passion for the sea and went on a search for salty marine environments. In the southern Brazilian coast, he undertook a Masters in Ecology examining evolutionary processes related to the latitudinal distribution of reef fish diversity. Then, to dive deeper into the evolution of reefs, he decided to make a move far from home and is now doing his PhD in Australia under the supervision of Peter Cowman and David Bellwood. Motivated by the belief that there are always good stories behind biodiversity, he intends to disentangle the historical process of functional and phylogenetic diversification in space and time on coral reefs.
Already as a child, Robert (Bert) enjoyed poking around in reef flat rock pools while growing up on the shores of the Indian Ocean in Kenya. After he had finished school and his undergraduate studies in biology in Munich, Germany, that early interest for reefs and the tropics washed back to the surface and lead him to study his Master’s degree at JCU in Townsville. He completed his postgraduate research on browsing herbivorous fishes in the Bellwood Lab in 2014 and started his PhD Candidature in early 2016. In his research, supervised by David Bellwood and Graeme Cumming, Bert is focusing on larger scale patterns of movement and space use in herbivorous reef fish - basically trying to understand how fishes move around their home and how this influences reef resilience.
Sterling grew up on Australia’s Sunshine Coast where he became interested in the marine environment and fishes, from a young age. He has been at JCU since 2012 and completed a BSc in Marine Biology in 2014 and an Honours in 2016, under the supervision of David Bellwood and Chris Goatley. His honours examined how sediments mediated interactions between surgeonfishes and algal turfs on coral reefs. Since completing his honours he worked as the lab manager in the Bellwood Lab up until the end of 2018. In 2019 he started his PhD under the supervision of David Bellwood and Sean Connolly. Sterling’s PhD research built on his earlier honours research to understand how fishes, sediments and productivity interact to sustain the functioning of future coral reef configurations.
As a postdoc in the Reef Function Hub, Sterling is now undertaking a diverse array of research that covers multiple taxonomic groups and spatial scales. This research ranges from small-scale field-based studies aimed at examining the functional roles of key organisms through to global-scale studies that utilise a macroecological approach to understand coral reef change. His research also extends to the conceptual side of studying ecosystem functions and he is particularly passionate about continuing the development of process-based perspectives to investigate coral reefs. Despite this diverse array of research, it all shares one common theme: a focus on understanding how coral reefs function.
Despite his passion for the ocean since his childhood, Juliano grew up in Brazil more than 1000 km from the coast, where he undertook his Bachelor in Biological Sciences at the Federal University of Goiais. In 2016, he moved to the Northeast coast of Brazil to do his Master's degree at Federal University of Paraiba and get closer to his great interest and passion: marine life diversity. During his Master’s, he worked with coral reef diversity and also collaborated with the creation of a 422 km2 marine protected area in the state of Paraiba. After completing this step, he decided to move to Australia to dive deeper in this field and, in 2020, he joined Professor David Bellwood's lab to do his PhD focusing on interactions between fish and corals in a functional approach.
At the age of 5, Helen’s curiosity for the ocean was inspired by her older sister. Growing-up in Vancouver, Canada, she frequented rocky shores in the search for any and all organisms in the intertidal. Naturally, she finally took her curiosity below the surface during her undergraduate career at Simon Fraser University, where she worked as a research assistant in Dr. Isabelle Côté’s lab. Since then, she has graduated with her Honours, which was done in collaboration with Griffith University in the Gold Coast, Australia, and has since been working for the IUCN SSC Shark Specialist Group. Hanging-up her drysuit temporarily, Helen’s PhD thesis will be exploring the interplay between coral-loss and reef fish assemblages.
Growing up in Hong Kong – the center of the food fish and shark fin trade – Isabelle witnessed the ramifications of overexploitation, which catapulted her engagement in marine conservation from a young age. It drove her to pursue a bachelor’s degree in Organismal Biology and Environmental Policy from Pitzer College in California. Upon completion of her undergraduate degree, Isabelle made the move to Singapore, where she worked as an outdoor educator, teaching terrestrial and marine ecology around South-East Asia.
Fast forward to this year, Isabelle completed her Master of Science (Professional) degree in Marine Biology at James Cook University (JCU). Her MSc Minor Project, supervised by Dr. Alexandre Siqueira and Prof. David Bellwood, was focused on understanding the various ecological, environmental, and biogeographical factors that shape global patterns of hybrid richness in reef fishes. Through the duration of this project, Isabelle realized her strong affinity for learning, discovering, and expanding on ideas, which ultimately drove her to pursue a PhD. For the next 3-4 years, Isabelle will be completing her PhD at JCU under the supervision of Dr. Alexandre Siqueira, Prof. David Bellwood, and Prof. Jan Strugnell. She is interested in investigating tropical marine taxa from a biogeographical and evolutionary lens.
William (Will) was born in England and first found his passion for fish whilst fishing for Pike with his Father in the freshwater rivers and canals of Yorkshire. Then, when Will was 11 he moved to Australia with his parents and younger sister. The move gave him the ability to fish and explore both the fresh and saltwater systems around the sunshine coast. This opportunity really developed his passion and interest in the marine ecosystem and particularly the fish which live within it. This interest drove him to excel in science during high school. To further pursue this interest, he moved to Townsville to begin a Bachelor of Advanced Science majoring in Marine Biology at James Cook University. Since finishing his bachelor’s degree in 2019, Will spent 2020 working as joint lab manager/research assistant for David Bellwood and in 2021 completed his Honours degree working on the movement and habits of nocturnal reef fishes. Currently, Will is undertaking his PhD which aims to further our knowledge of nocturnal fishes and develop a better idea of their functional roles in marine ecosystems.
Pooventhran (Pooven) was born and raised in the garden city of Singapore. Being a hub for the ornamental fish trade, exploring aquarium shops proved to be a popular pastime for him. This fascination with fishes eventually grew and he embarked on a Bachelor of Environmental Studies at the National University of Singapore, while also minoring in aquatic ecology. For his honours project, he worked with the Freshwater and Invasion Biology lab, where he explored the autecology of the marbled gudgeon. Soon after, he moved to Australia to begin his master's degree in marine biology at James Cook University. As part of his masters, his minor project focused on incorporating both morphological and behavioural traits in piscivorous fishes to determine how these predators capture and process their prey. Currently, he has commenced his PhD, exploring the associations between reef fishes and corals, with the aim of gaining a better insight into the interdependency between these highly prolific groups.
Casey put on her first snorkel mask at the age of 4 on the Great Barrier Reef and immediately fell in love with the ocean. She grew up in the heart of Melbourne and loved all activities in and around the water. She really discovered her passion for all things marine whilst travelling Australia as a child, particularly on the western coastline. Casey has been scuba diving since she was 12 years old and has worked towards a career in the marine world ever since.
Casey completed her Bachelor of Advanced Science degree, majoring in Marine Biology at James Cook University in 2019. She then worked as joint lab manager/research assistant for the Bellwood Reef Fish Lab with Will Collins in 2020 before diving into the world of research.
Casey’s Honours degree focused on the role of blennies in sediment dynamics on coral reefs, which she completed under the supervision of David Bellwood and Sterling Tebbett in 2021. Excited by the research process, Casey commenced her PhD with the Reef Function Hub in 2022, exploring the interactions between fishes and the coral reef environment in which they live.
Lucas first became interested in the marine environment and its inhabitants at a young age when he visited the aquarium in his hometown Berlin, Germany. After finishing a nursing degree and spending most of his time travelling overseas, Lucas picked up the pencil again to start a Bachelor of Science in Marine Biology in Townsville in 2019. After completing his BSc. in 2021, he is now investigating reef flat systems as part of his Master’s under the supervision of Prof. David Bellwood and Dr. Stephanie Duce.
James grew up in Bundaberg, Qld, and developed a fascination with the ocean through snorkeling and diving with his friends as a teenager. At 17 years old he joined the Australian Army and served for 6 years before rediscovering his passion for the ocean whilst traveling across Southeast Asia. He returned to Townsville in 2018 to follow his interests and completed a Bachelor of Science in Marine Biology at James Cook University in 2021. He begins his honours under the supervision of David Bellwood, Orpha Bellwood, and Jodie Schlaefer investigating the near-reef planktonic community.
