Uncovering drivers of viral spillover

PhD Scholarship
LIA HEREMIA

Lia Heremia resized3
Principal Investigator
Lia Heremia
University of Otago
Public Contact
teniwhacomms@otago.ac.nz
Project Status
In Process
Funding
$164,000.00

Whakarāpopoto Rangahau Summary of Research

Human-driven changes to landscapes—through agriculture, urbanisation, and wildlife trade—are intensifying interactions between wild birds, livestock, and people, facilitating the spillover of zoonotic viruses such as avian influenza and coronaviruses. Although many avian viruses remain asymptomatic in their natural hosts, shifts in host ecology can promote viral emergence, with significant implications for biodiversity, public health, and biosecurity.

This project aims to characterise the diversity and evolutionary potential of avian viruses in Aotearoa, investigating how ecological and environmental factors influence viral emergence, re-emergence, and cross-species transmission. It also seeks to uphold genomic data sovereignty through iwi consultation and collaborative research frameworks.

Employing metatranscriptomics, the study will use high-throughput sequencing and computational analyses to assemble and annotate viral genomes, estimate viral abundances, and estimate phylogenetic relationships. Both native and introduced species will be sampled across diverse ecological contexts, with an emphasis on detecting highly divergent virus and those more likely to facilitate host shifts.

Te Hiranga a Rangahau Research Impact

This project will investigate the ecological and evolutionary dynamics driving virus emergence in birds across Aotearoa New Zealand. By analysing the viromes of native taonga and introduced avian species using high-throughput RNA sequencing, this research will generate vital insights into host–virus interactions, cross-species transmission, and emerging infectious disease risks. Outcomes will include a comprehensive inventory of avian viruses, phylogenetic relationships among novel and known viruses, and an assessment of virome structure across host traits and environments. These will be evaluated through bioinformatic, ecological, and evolutionary analyses, with key findings benchmarked against international studies. The significance for Aotearoa lies in its relevance to biodiversity protection, biosecurity preparedness, and pandemic prevention. This work will inform conservation efforts, support Māori data sovereignty under Te Mana Raraunga, and contribute to global understanding of zoonotic emergence from a uniquely local perspective. Two-way knowledge exchange will be embedded through early and ongoing engagement with iwi and end users (e.g. DOC, councils), ensuring research design and outputs reflect community priorities and mātauranga Māori. Findings will be shared through peer-reviewed publications, hui, policy briefs, and accessible resources for stakeholders and the public, maximising both scientific and societal impact.

Te Niwha

Kairangahau Research Personnel

Professor Jemma Geoghegan
University of Otago
Primary Supervisor

 

LOCATION: 

Otago / Southland (at this stage) Aotearoa, New Zealand

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Dr Alana Alexander
University of Otago
Supervisor

 

   

  

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