New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
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New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)

New Zealand's Wellington Zoo has more than doubled its population of endangered ring-tailed lemurs after its four females gave birth to twins, the zoo's primate manager said on Tuesday.

Ring-tailed lemurs, endemic to Madagascar, are on the endangered list. Wellington Zoo has only had ring-tailed lemurs for 18 months and got Zeus, their male, at the beginning of 2022 with the hope they might be able to add to their population.

Primate manager Lisa Ridley said given all four adult female lemurs were first-time mums, they were not sure whether they'd have success with breeding them.

"We're very, very excited that we've had four sets of healthy twins and they're doing well," she said.

The first set of twins was born in August and the final set was born last week.

The population of ring-tailed lemurs, made famous by King Julien in the 2005 movie "Madagascar", is declining in the wild. One of the challenges is female ring-tailed lemurs are only sexually receptive for one or two days a year.

"The window is literally 24 to 36 hours - that was all the time our male had to do his job," said Ridley. "Zeus is a really, really nice male. He's laid back. He is very respectful of the females and he understands his position within the mob."

Ridley said the zoo was not sure of the sex of the young lemurs as they try not to interfere with them until they are older.

Once they mature, any new males and Zeus would likely be separated to create a bachelor group, as would naturally occur in the wild.

Zeus would be used for breeding for a few more years before being replaced to prevent the genetic pool from becoming too small, Ridley said.



Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
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Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)

Climate change is driving changes in rainfall patterns across the world, scientists said in a paper published on Friday, which could also be intensifying typhoons and other tropical storms.

Taiwan, the Philippines and then China were lashed by the year's most powerful typhoon this week, with schools, businesses and financial markets shut as wind speeds surged up to 227 kph (141 mph). On China's eastern coast, hundreds of thousands of people were evacuated ahead of landfall on Thursday.

Stronger tropical storms are part of a wider phenomenon of weather extremes driven by higher temperatures, scientists say.

Researchers led by Zhang Wenxia at the China Academy of Sciences studied historical meteorological data and found about 75% of the world's land area had seen a rise in "precipitation variability" or wider swings between wet and dry weather.

Warming temperatures have enhanced the ability of the atmosphere to hold moisture, which is causing wider fluctuations in rainfall, the researchers said in a paper published by the Science journal.

"(Variability) has increased in most places, including Australia, which means rainier rain periods and drier dry periods," said Steven Sherwood, a scientist at the Climate Change Research Center at the University of New South Wales, who was not involved in the study.

"This is going to increase as global warming continues, enhancing the chances of droughts and/or floods."

FEWER, BUT MORE INTENSE, STORMS

Scientists believe that climate change is also reshaping the behavior of tropical storms, including typhoons, making them less frequent but more powerful.

"I believe higher water vapor in the atmosphere is the ultimate cause of all of these tendencies toward more extreme hydrologic phenomena," Sherwood told Reuters.

Typhoon Gaemi, which first made landfall in Taiwan on Wednesday, was the strongest to hit the island in eight years.

While it is difficult to attribute individual weather events to climate change, models predict that global warming makes typhoons stronger, said Sachie Kanada, a researcher at Japan's Nagoya University.

"In general, warmer sea surface temperature is a favorable condition for tropical cyclone development," she said.

In its "blue paper" on climate change published this month, China said the number of typhoons in the Northwest Pacific and South China Sea had declined significantly since the 1990s, but they were getting stronger.

Taiwan also said in its climate change report published in May that climate change was likely to reduce the overall number of typhoons in the region while making each one more intense.

The decrease in the number of typhoons is due to the uneven pattern of ocean warming, with temperatures rising faster in the western Pacific than the east, said Feng Xiangbo, a tropical cyclone research scientist at the University of Reading.

Water vapor capacity in the lower atmosphere is expected to rise by 7% for each 1 degree Celsius increase in temperatures, with tropical cyclone rainfall in the United States surging by as much as 40% for each single degree rise, he said.