Latest news with #PeterFretwell
The Star
14-06-2025
- Science
- The Star
Emperor penguin populations declining faster than expected
Scientists monitoring the world's largest penguin species used satellites to assess 16 colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea. — Photos: AFP Emperor penguin populations in Antarctica have shrunk by almost a quarter as global warming transforms their icy habitat, according to new research released June 10 that warned the losses were far worse than previously imagined. Scientists monitoring the world's largest penguin species used satellites to assess 16 colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea, representing nearly a third of the global emperor penguin population. What they found was "probably about 50% worse" than even the most pessimistic estimate of current populations using computer modelling, said Peter Fretwell, who tracks wildlife from space at the British Antarctic Survey (BAS). Researchers know that climate change is driving the losses but the speed of the declines is a particular cause for alarm. The study, published in the journal Nature Communications: Earth & Environment, found that numbers declined 22% in the 15 years to 2024 for the colonies monitored. This compares with an earlier estimate of a 9.5% reduction across Antarctica as a whole between 2009 and 2018. Warming is thinning and destabilising the ice under the penguins' feet in their breeding grounds. In recent years, some colonies have lost all their chicks because the ice has given way beneath them, plunging hatchlings into the sea before they were old enough to cope with the freezing ocean. Fretwell said the new research suggests penguin numbers have been declining since the monitoring began in 2009. That is even before global warming was having a major impact on the sea ice, which forms over open water adjacent to land in the region. But he said the culprit is still likely to be climate change, with warming driving other challenges for the penguins, such as higher rainfall or increasing encroachment from predators. "Emperor penguins are probably the most clear-cut example of where climate change is really showing its effect," Fretwell said. "There's no fishing. There's no habitat destruction. There's no pollution which is causing their populations to decline. "It's just the temperatures in the ice on which they breed and live, and that's really climate change." Scientists monitoring the world's largest penguin species used satellites to assess 16 colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea. — Photos: AFP Worrying result Emperor penguins, aka Aptenodytes forsteri, number about a quarter of a million breeding pairs, all in Antarctica, according to a 2020 study. A baby emperor penguin emerges from an egg kept warm in winter by a male, while the female in a breeding pair embarks on a two-month fishing expedition. When she returns to the colony, she feeds the hatchling by regurgitating and then both parents take turns to forage. To survive on their own, chicks must develop waterproof feathers, a process that typically starts in mid-December. The new research uses high resolution satellite imagery during the months of October and November, before the region is plunged into winter darkness. Fretwell said future research could use other types of satellite monitoring, like radar or thermal imaging, to capture populations in the darker months, as well as expand to the other colonies. "We really do need to look at the rest of the population to see if this worrying result transfers around the continent," he said, adding however that the colonies studied were considered representative. He said there is hope that the penguins may go further south to colder regions in the future but added that it is not clear "how long they're going to last out there". Computer models have projected that the species will be near extinction by the end of the century if humans do not slash their planet-heating emissions. The latest study suggests the picture could be even worse. "We may have to rethink those models now with this new data," said Fretwell. But he stressed there was still time to reduce the threat to the penguins. "We've got this really depressing picture of climate change and falling populations even faster than we thought but it's not too late," he said. "We're probably going to lose a lot of emperor penguins along the way but if people do change, and if we do reduce or turn around our climate emissions, then then will we save the emperor penguin." – AFP
CBS News
13-06-2025
- Science
- CBS News
New report shows massive plunge in planet's emperor penguin population
Emperor penguins may live in some of the most remote and environmentally pristine regions in the world, but that doesn't mean they're safe from the impacts of a warming planet. Just ask Dr. Birgitte McDonald, a researcher at Moss Landing Marine Laboratories. For 15 years, she's studied emperor penguins and how they dive, swim, and forage for food. A new report published in "Nature" has deepened her concern about the penguins' survival. "This report wasn't too surprising but a little depressing at how fast it seems to be happening in one region," remarked McDonald. The report involved scientists from the British Antarctic Survey. For 15 years, they've monitored 16 colonies of emperor penguins via satellite imagery. These colonies represent roughly a third of all the emperor penguins on earth. A new analysis of the satellite data has detected a higher and more dramatic decline in the birds' populations. Five years ago, the scientists found a 9.5% drop. The updated data shows a startling 22% drop. "Overall, the picture is quite poor, it's quite dire for the penguins," remarked Dr. Peter Fretwell. Fretwell is the lead author of the new analysis. The warming of the planet is thinning and destabilizing the sea ice that is critical for the breeding and molting of the penguins. There is more competition for available food amongst all the creatures in the area. In addition, scientists are detecting more extreme weather in the forms of more rainfall and storms. Increasing extreme weather is a hallmark of climate change. "The chicks are well insulated with their down but the down only really works if they stay dry. And so, if there is a lot more rain, the chicks will have to spend more energy trying to stay warm. So going out to sea for the first time at a lighter weight and that could decrease their chance of survival," explained McDonald. As to what we can do to slow the warming, McDonald offered some advice: fly less, try more carpooling and driving less, and eating less meat. These are all small steps but if large enough people practice them, McDonald noted, there could be a difference. Here are more ideas on how you can reduce your carbon footprint.
Free Malaysia Today
11-06-2025
- Science
- Free Malaysia Today
Emperor penguin populations declining faster than expected
Some emperor penguin colonies have lost all their chicks from thinning ice plunging hatchlings into the sea before they were old enough. (Envato Elements pic) PARIS : Emperor penguin populations in Antarctica have shrunk by almost a quarter as global warming transforms their icy habitat, according to new research today that warned the losses were far worse than previously imagined. Scientists monitoring the world's largest penguin species used satellites to assess sixteen colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea, representing nearly a third of the global emperor penguin population. What they found was 'probably about 50% worse' than even the most pessimistic estimate of current populations using computer modelling, said Peter Fretwell, who tracks wildlife from space at the British Antarctic Survey (BAS). Researchers know that climate change is driving the losses but the speed of the declines is a particular cause for alarm. The study, published in the journal Nature Communications: Earth & Environment, found that numbers declined 22% in the 15 years to 2024 for the colonies monitored. This compares with an earlier estimate of a 9.5% reduction across Antarctica as a whole between 2009 and 2018. Warming is thinning and destabilising the ice under the penguins' feet in their breeding grounds. In recent years some colonies have lost all their chicks because the ice has given way beneath them, plunging hatchlings into the sea before they were old enough to cope with the freezing ocean. Fretwell said the new research suggests penguin numbers have been declining since the monitoring began in 2009. That is even before global warming was having a major impact on the sea ice, which forms over open water adjacent to land in the region. But he said the culprit is still likely to be climate change, with warming driving other challenges for the penguins, such as higher rainfall or increasing encroachment from predators. 'Emperor penguins are probably the most clear-cut example of where climate change is really showing its effect,' said Fretwell. 'There's no fishing. There's no habitat destruction. There's no pollution which is causing their populations to decline.' 'It's just the temperatures in the ice on which they breed and live, and that's really climate change.' Emperor penguins, aka Aptenodytes forsteri, number about a quarter of a million breeding pairs, all in Antarctica, according to a 2020 study. A baby emperor penguin emerges from an egg kept warm in winter by a male, while the female in a breeding pair embarks on a two-month fishing expedition. When she returns to the colony, she feeds the hatchling by regurgitating. To survive on their own, chicks must develop waterproof feathers, a process that typically starts in mid-December. Fretwell said there is hope that the penguins may go further south in the future but added that it is not clear 'how long they're going to last out there'. Computer models have projected that the species will be near extinction by the end of the century if humans do not slash their planet-heating emissions. The latest study suggests the picture could be even worse. 'We may have to rethink those models now with this new data,' said Fretwell. 'We really do need to look at the rest of the population to see if this worrying result transfers around the continent,' he added. But he stressed there was still time to reduce the threat to the penguins. 'We've got this really depressing picture of climate change and falling populations even faster than we thought but it's not too late,' he said. 'We're probably going to lose a lot of emperor penguins along the way but if people do change, and if we do reduce or turn around our climate emissions, then then we will save the emperor penguin.'
RNZ News
11-06-2025
- Science
- RNZ News
Emperor penguin populations in Antarctica declining faster than expected
Photo: AFP / Biosphoto By Kelly Macnamara , AFP Emperor penguin populations in Antarctica have shrunk by almost a quarter as global warming transforms their icy habitat, according to new research on Tuesday that warned the losses were far worse than previously imagined. Scientists monitoring the world's largest penguin species used satellites to assess sixteen colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea, representing nearly a third of the global emperor penguin population. What they found was "probably about 50-percent worse" than even the most pessimistic estimate of current populations using computer modelling, said Peter Fretwell, who tracks wildlife from space at the British Antarctic Survey (BAS). Researchers know that climate change is driving the losses but the speed of the declines is a particular cause for alarm. The study, published in the journal Nature Communications: Earth & Environment , found that numbers declined 22 percent in the 15 years to 2024 for the colonies monitored. This compares with an earlier estimate of a 9.5-percent reduction across Antarctica as a whole between 2009 and 2018. Warming is thinning and destabilising the ice under the penguins' feet in their breeding grounds. In recent years some colonies have lost all their chicks because the ice has given way beneath them, plunging hatchlings into the sea before they were old enough to cope with the freezing ocean. Fretwell said the new research suggests penguin numbers have been declining since the monitoring began in 2009. That is even before global warming was having a major impact on the sea ice, which forms over open water adjacent to land in the region. But he said the culprit is still likely to be climate change, with warming driving other challenges for the penguins, such as higher rainfall or increasing encroachment from predators. "Emperor penguins are probably the most clear-cut example of where climate change is really showing its effect," Fretwell told AFP. "There's no fishing. There's no habitat destruction. There's no pollution which is causing their populations to decline. "It's just the temperatures in the ice on which they breed and live, and that's really climate change." Some colonies have lost all their chicks in recent years because the ice has given way beneath them. Photo: AFP / Biosphoto Emperor penguins, aka Aptenodytes forsteri, number about a quarter of a million breeding pairs, all in Antarctica, according to a 2020 study. A baby emperor penguin emerges from an egg kept warm in winter by a male, while the female in a breeding pair embarks on a two-month fishing expedition. When she returns to the colony, she feeds the hatchling by regurgitating and then both parents take turns to forage. To survive on their own, chicks must develop waterproof feathers, a process that typically starts in mid-December. The new research uses high-resolution satellite imagery during the months of October and November, before the region is plunged into winter darkness. Fretwell said future research could use other types of satellite monitoring, like radar or thermal imaging, to capture populations in the darker months, as well as expand to the other colonies. "We really do need to look at the rest of the population to see if this worrying result transfers around the continent," he said, adding however that the colonies studied were considered representative. He said there is hope that the penguins may go further south to colder regions in the future but added that it is not clear "how long they're going to last out there". Computer models have projected that the species will be near extinction by the end of the century if humans do not slash their planet-heating emissions. The latest study suggests the picture could be even worse. "We may have to rethink those models now with this new data," said Fretwell. But he stressed there was still time to reduce the threat to the penguins. "We've got this really depressing picture of climate change and falling populations even faster than we thought but it's not too late," he said. "We're probably going to lose a lot of emperor penguins along the way but if people do change, and if we do reduce or turn around our climate emissions, then then we will save the emperor penguin." - AFP
Malay Mail
11-06-2025
- Science
- Malay Mail
‘Worrying result' for Antarctic emperor penguins as populations plummet faster than expected
PARIS, June 11 — Emperor penguin populations in Antarctica have shrunk by almost a quarter as global warming transforms their icy habitat, according to new research yesterday that warned the losses were far worse than previously imagined. Scientists monitoring the world's largest penguin species used satellites to assess sixteen colonies in the Antarctic Peninsula, Weddell Sea and Bellingshausen Sea, representing nearly a third of the global emperor penguin population. What they found was 'probably about 50 per cent worse' than even the most pessimistic estimate of current populations using computer modelling, said Peter Fretwell, who tracks wildlife from space at the British Antarctic Survey (BAS). Researchers know that climate change is driving the losses but the speed of the declines is a particular cause for alarm. The study, published in the journal Nature Communications: Earth & Environment, found that numbers declined 22 per cent in the 15 years to 2024 for the colonies monitored. This compares with an earlier estimate of a 9.5-per cent reduction across Antarctica as a whole between 2009 and 2018. Warming is thinning and destabilising the ice under the penguins' feet in their breeding grounds. In recent years some colonies have lost all their chicks because the ice has given way beneath them, plunging hatchlings into the sea before they were old enough to cope with the freezing ocean. Fretwell said the new research suggests penguin numbers have been declining since the monitoring began in 2009. That is even before global warming was having a major impact on the sea ice, which forms over open water adjacent to land in the region. But he said the culprit is still likely to be climate change, with warming driving other challenges for the penguins, such as higher rainfall or increasing encroachment from predators. 'Emperor penguins are probably the most clear-cut example of where climate change is really showing its effect,' Fretwell told AFP. 'There's no fishing. There's no habitat destruction. There's no pollution which is causing their populations to decline. 'It's just the temperatures in the ice on which they breed and live, and that's really climate change.' 'Worrying result' Emperor penguins, aka Aptenodytes forsteri, number about a quarter of a million breeding pairs, all in Antarctica, according to a 2020 study. A baby emperor penguin emerges from an egg kept warm in winter by a male, while the female in a breeding pair embarks on a two-month fishing expedition. When she returns to the colony, she feeds the hatchling by regurgitating and then both parents take turns to forage. To survive on their own, chicks must develop waterproof feathers, a process that typically starts in mid-December. The new research uses high resolution satellite imagery during the months of October and November, before the region is plunged into winter darkness. Fretwell said future research could use other types of satellite monitoring, like radar or thermal imaging, to capture populations in the darker months, as well as expand to the other colonies. 'We really do need to look at the rest of the population to see if this worrying result transfers around the continent,' he said, adding however that the colonies studied were considered representative. He said there is hope that the penguins may go further south to colder regions in the future but added that it is not clear 'how long they're going to last out there'. Computer models have projected that the species will be near extinction by the end of the century if humans do not slash their planet-heating emissions. The latest study suggests the picture could be even worse. 'We may have to rethink those models now with this new data,' said Fretwell. But he stressed there was still time to reduce the threat to the penguins. 'We've got this really depressing picture of climate change and falling populations even faster than we thought but it's not too late,' he said. 'We're probably going to lose a lot of emperor penguins along the way but if people do change, and if we do reduce or turn around our climate emissions, then then we will save the emperor penguin.' — AFP
