Rapid response to protect penguins from bird flu

23 March 2023

Professor Cary is no stranger to penguin poo.

Professor Craig Cary wasn’t planning to spend part of his 2022/23 Antarctic deployment trekking around a penguin colony, collecting poo samples. Fortunately for the penguins, a rapid response to the threat of bird flu resulted in exactly that.

With support from The University of Waikato (UOW) Environmental Research Institute (ERI) and Antarctica New Zealand, Professor Cary undertook a world first survey for bird flu in Victoria Land.

In mid 2022 the Scientific Committee on Antarctic (SCAR) sounded the alarm to scientists and other operators in Antarctica, of an impending threat from the North – the highly contagious bird flu - avian influenza H5N1. The virus has the potential to seriously undermine penguin colonies and Antarctic ecosystems, already under stress from climate change.

“Can we tolerate the possible loss of an iconic species? I think it’s encoded in human DNA, that we’re global stewards … It’s rare to get to do something at this level of potential importance,” Professor Cary says.

The colony is high risk for disease spread because of the density of population and notoriously grubby habits of the Adelie penguin.

From early 2022 scientists have been tracking the increasing intensity of H5N1 outbreaks. Hundreds of thousands of seabirds have died and an estimated 140 million farmed birds have been culled. The zoonotic virus can cross to multiple species — thousands of sea lion deaths have been recorded in Peru and there are fears the virus is to blame for high numbers of seal deaths in Canada.

Scientific modelling indicates the likelihood of H5N1 reaching Antarctica by 2024, via migratory birds returning from the Northern hemisphere.

“Skua arrival at Cape Adare coincides with penguin breeding season and the Cape is home to one of the largest Adelie penguin breeding areas in the world,” Professor Cary says.

The virus spreads through contact with infected individuals and poo. The colony is high risk for disease spread because of the density of population and notoriously grubby habits of the Adelie penguin. These ‘champion pooers’ with a projectile pooing technique cover their rookery in sticky poo, then toddle through it, to feed from the pack ice.

Seriously poo covered Adelie penguins. One way H5N1 is spread through infected poo.

Professor Cary is no stranger to penguin poo. A microbial ecologist, Director of the International Centre for Terrestrial Antarctic Research, and ERI steering group member, he has extensive experience of the world's most extreme environments. In Antarctica, he’s studied microbial communities in soil, ice, and penguin guano (poo).

“New Zealand punches above its weight when it comes to protecting Antarctica,” he says.

He received the H5N1 alert when planning his 22nd Antarctic deployment, to put infrastructure in for the new HAUWAI-20, a robotic under sea ice biological sampler being developed by UOW and Cellula Robotics (Vancouver Canada).

The UOW and ERI have a long standing, productive history in Antarctica and researchers have a strong sense of responsibility to protect the continent.

“There is significant risk here, so I contacted Antarctica New Zealand. They listened to the science and identified an opportunity for me to join a team headed to Cape Adare,” Professor Cary says.

Professor Cary monitored a colony of one million Adelie penguins, trekking nine hours in and around the colony to look for signs of H5N1 infection.

Professor Cary joined an Antarctic Heritage Trust crew headed to Cape Adare for hut repairs.

He monitored a colony of one million Adelie penguins, trekking nine hours in and around the colony to look for signs of infection. No dead birds or H5N1 symptomatic behaviours were observed. He collected 100 fresh poo samples, each from a single separated sub-colony – these are now in a freezer at his UOW lab, awaiting analysis.

The survey will help detect H5N1 in Antarctica – a rapid response will be vital to slow the disease and any cross species infection. Professor Cary cautions that this is only one survey of one colony and many more need monitoring.

“My hope is to initiate an international effort involving all the Antarctic National Programmes in the Ross Sea region to collectively visit, observe and sample select colonies so that we get the coverage needed.”

There are mitigation possibilities being explored, including existing and newly developed vaccines. “Right now, we must be prepared for what is inevitable and look at every possible mitigation strategy being used off continent,” Professor Cary says.

Latest stories

Related stories

Exploring and embracing diversity

Research at the University of Waikato is helping to underpin policy development and decisions designed…

Graduates from the University of Waikato line up for their ceremony

Triumph in Tauranga: University of Waikato celebrates graduation

Just over 250 people graduated from the University of Waikato’s Tauranga campus on Friday, marking…

Poorer countries must be compensated for climate damage. But how exactly do we crunch the numbers?

As the planet warms, a key concern in international climate negotiations is to compensate developing…

Collectively combating the climate crisis

University of Waikato researchers are helping New Zealand communities mitigate emissions and adapt to the…

Bouncing unborn baby research between time zones secret to success

Bouncing work back and forth between time zones has allowed research into fetal development to…

Oceanography researcher recognised for making waves around the world

With a sea captain for a grandfather and childhood summers spent around the sea, it’s…

An ocean of possibilities in marine research at University of Waikato

Researchers at the University of Waikato are turning to the ocean to clean up our…

Waikato researchers at the frontier of New Zealand’s high-tech robotics industry

Developing a high-tech robotics industry in New Zealand to grow and support a horticulture sector…

Algae to economics: academic promotions announced

The University of Waikato has announced its latest round of academic promotions.

University set to host international epicentre of activity for volcanologists

Hundreds of volcanologists and earth scientists from around the world meet in Rotorua for the…

New app allows easy identification of all NZ plants, animals and fungi

Imagine being able to readily identify every plant and bird in your garden, on a…

University of Waikato researchers shape the future of Artificial Intelligence in New Zealand

University of Waikato researchers are using artificial intelligence (AI) and machine learning to tackle problems…