Day: August 20, 2022

African Migratory Birds Threatened by Hot, Dry Weather

Africa’s migratory birds are threatened by changing weather patterns in the center and east of the continent that have depleted natural water systems and caused a devastating drought.

Hotter and drier conditions due to climate change make it difficult for traveling species who are losing their water sources and breeding grounds, with many now endangered or forced to alter their migration patterns entirely by settling in cooler northern areas.

Roughly 10% of Africa’s more than 2,000 bird species, including dozens of migratory birds, are threatened, with 28 species — such as the Madagascar fish eagle, the Taita falcon and hooded vultures — classed as “critically endangered.” Over one-third of them are especially vulnerable to climate change and extreme weather, an analysis by the environmental group BirdLife International said.

“Birds are being affected by climate change just like any other species,” BirdLife policy coordinator Ken Mwathe said. “Migratory birds are affected more than other groups of birds because they must keep on moving,” which makes it more likely that a site they rely on during their journey has degraded in some way.

The African-Eurasian flyway, the flight corridor for birds that travel south through the Mediterranean Sea and Sahara Desert for the winter, harbors over 2,600 sites for migrating birds. An estimated 87% of African sites are at risk from climate change, a greater proportion than in Europe or Asia, a study by the United Nations environment agency and conservation group Wetlands International found.

Africa is more vulnerable to climate change because it is less able to adapt, said Evans Mukolwe, a retired meteorologist and science director at the World Meteorological Organization.

“Poverty, biodiversity degradation, extreme weather events, lack of capital and access to new technologies” make it more difficult for the continent to protect habitats for wild species, Mukolwe said.

Hotter temperatures due to human-caused climate change and less rainfall shrink key wetland areas and water sources, which birds rely on during migratory journeys.

“Lake Chad is an example,” Mwathe said. “Before birds cross the Sahara, they stop by Lake Chad, and then move to the Northern or Southern Hemisphere. But Lake Chad has been shrinking over the years,” which compromises its ability to support birds, he said.

Parched birds mean tougher journeys, which has an impact on their ability to breed, said Paul Matiku, executive director of Nature Kenya.

Flamingoes, for example, which normally breed in Lake Natron in Tanzania are unlikely to be able to “if the migration journey is too rough,” Matiku said.

He added that “not having water in those wetlands means breeding will not take place” since flamingoes need water to create mud nests that keep their eggs away from the intense heat of dry ground.

Non-migratory birds are also struggling with the changing climate. African fish eagles, found throughout sub-Saharan Africa, are now forced to travel farther in search of food. The number of South African Cape Rockjumpers and Protea canaries is severely declining.

Bird species living in the hottest and driest areas, like in the Kalahari Desert that spans Botswana, Namibia and South Africa, are approaching their “physiological limits,” the most recent assessment by the U.N.’s expert climate panel said. It added that birds are less able to find food and are losing body mass, causing large-scale deaths for those living in extreme heat.

“Forest habitats get hotter with climate change and … dryland habitats get drier and savannah birds lack food because grass never seeds, flowers never fruit, and insects never emerge as they do when it rains,” Matiku said.

Other threats, such as the illegal wildlife trade, agriculture, the growth of urban areas and pollution are also stunting bird populations like African fish eagles and vultures, he said.

Better land management projects that help restore degraded wetlands and forests and protect areas from infrastructure, poaching or logging will help preserve the most vulnerable species, the U.N. environmental agency said.

Birds and other species would benefit from concerted efforts to improve water access and food security, especially as sea levels rise and extreme weather events are set to continue, said Amos Makarau, the Africa regional director of the U.N. weather agency.

Scientists say that curbing emissions of planet-warming gases, especially in high-emitting nations, could also limit future weather-related catastrophes.

more

Indonesia Confirms First Monkeypox Case in Citizen Returning From Abroad – Ministry

Indonesia has confirmed its first monkeypox infection, detected in a person who had returned from an unidentified country with documented cases, a health ministry spokesman said Saturday.

The 27-year-old male tested positive in the capital Jakarta late Friday, Mohammad Syahril told a news conference.  

The Indonesian national, who is doing “well” and showing only mild symptoms, is self-isolating at home, said Syahril, who did not say where the patient had come from.

“We have followed up with tracing of close contacts and will check up on them,” he said, adding the government is in the process of procuring around 10,000 vaccines for monkeypox.

The health ministry is urging calm and has reassured the public that monkeypox is treatable. It has so far tested 22 suspected cases from across the country, all of which were negative.

Neighboring Singapore reported its first local case of monkeypox last month and had 15 confirmed cases as of August 5.

Elsewhere in Southeast Asia, the Philippines and Thailand also have confirmed cases.

The World Health Organization has declared a global health emergency, with more than 40,000 confirmed cases of monkeypox, including a handful of deaths, in more than 80 countries where the virus is not endemic.

more