South America’s Rivers Hit Record Lows as Brazil Drought Impact Spreads 

The Paraguay River is pictured, amid smoke coming from wildfires in neighboring countries, as the river has hit a record low water level due to a major drought, in Villeta, Paraguay September 7, 2024. (Reuters)
The Paraguay River is pictured, amid smoke coming from wildfires in neighboring countries, as the river has hit a record low water level due to a major drought, in Villeta, Paraguay September 7, 2024. (Reuters)
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South America’s Rivers Hit Record Lows as Brazil Drought Impact Spreads 

The Paraguay River is pictured, amid smoke coming from wildfires in neighboring countries, as the river has hit a record low water level due to a major drought, in Villeta, Paraguay September 7, 2024. (Reuters)
The Paraguay River is pictured, amid smoke coming from wildfires in neighboring countries, as the river has hit a record low water level due to a major drought, in Villeta, Paraguay September 7, 2024. (Reuters)

South America's Paraguay River, a key thoroughfare for grains, has hit a record low in Paraguay's capital Asuncion, with water levels depleted by a severe drought upriver in Brazil that has hindered navigation along waterways in the Amazon.

The depth of the Paraguay River, measured versus a "zero" index rather than the riverbed, has dropped below minus 0.82 meter, breaking the previous record low in October 2021, data from the national Meteorology and Hydrology Directorate shows. The body expects the river will keep falling with no rain forecast.

The Parana River in Argentina is also near year lows around grains hub Rosario. Both the Paraguay and Parana rivers start in Brazil, eventually joining and flowing into the sea near Buenos Aires. They are important routes for soy, corn and other trade.

"In the northern section (of the Paraguay waterway), navigation is practically halted due to the extreme drop in water levels," the Paraguayan oilseed and grain crushing chamber CAPPRO told Reuters in written comments.

The chamber, whose grain-trader members handle some 60% of Paraguay's soybean exports, said the low river was hitting shipments, though the impact was capped as it was not peak trading season.

"Vessels have had to transport volumes below the average of their normal cargo capacity," said CAPPRO. "This has generated delays and made travel times longer." The chamber's members include ADM, Bunge and Cargill.

EXPECTED RAINS NOT ENOUGH

The Paraguay-Parana system is a waterway of more than 3,400 kilometers (2,113 miles) that runs through Argentina, Brazil, Uruguay, as well as landlocked Paraguay and Bolivia.

Paraguay is the world's No. 3 soybean exporter and roughly 80% of grains travel along waterways to seaports downriver. Argentina is the top exporter of processed soy, most of which goes down the Parana from around river port city Rosario.

Paraguay's deputy director for the Meteorology and Hydrology Directorate, Jorge Sanchez, said the outlook for river levels in the coming months was not encouraging, even with the traditional October-November rainy season ahead.

"This would alleviate the level of the river, but it's not expected to be enough," Sanchez said.

Less rain than normal is expected in the second half of the year due to the La Nina weather phenomenon, which brings drier, cooler conditions in Paraguay and Argentina, though it usually heralds wetter weather farther north in Brazil.

Sanchez said this year, however, La Nina was delayed and its effects would be seen only between October and November. "There is a lot of variability due to climate change," he added.

In Brazil, where record wildfires have also occurred, the low water levels are leaving some communities in the Amazon isolated, as well as hitting soy and corn shipments in center-west states such as Mato Grosso, Brazil's number one grains growing area.



'Amphibious Mouse' among 27 New Species Discovered in Peru's Amazon

A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
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'Amphibious Mouse' among 27 New Species Discovered in Peru's Amazon

A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS

An "amphibious mouse" with partially webbed feet that eats aquatic insects was among 27 new species discovered during a 2022 expedition to Peru's Amazon, according to Conservation International.

Scientists also discovered a spiny mouse, a squirrel, eight types of fish, three amphibians and 10 types of butterflies, Trond Larsen, head of Conservation International's Rapid Assessment Program, told Reuters this week.

He added that another 48 species found by investigators were potentially new, but needed further study.

The new species were found in Alto Mayo, a protected area with several ecosystems, Indigenous territories and villages.

"Discovering so many new species of mammals and vertebrates is really incredible, especially in such a human-influenced landscape as Alto Mayo," Larsen said.

The expedition between June and July 2022 was made up of 13 scientists plus local technicians and members of Indigenous groups.

"It was really fantastic to work so closely with the Awajun people. They have extensive traditional knowledge about the forests, animals and plants they live side-by-side with," Larsen said.

Among the new species, Larsen highlighted the spiny mouse that has stiff fur, the amphibious mouse, and a dwarf squirrel that measures 14 cm (5.5 in).

"(The squirrel) fits so easily in the palm of your hand. Adorable and beautiful chestnut-brown color, very fast," Larsen said. "It jumps quickly and hides in the trees."

Another favorite discovery was the blob-headed fish, a type of armored catfish, he said.

A total of 2,046 species were recorded during the 38-day expedition using camera traps, bioacoustic sensors and DNA sampling. Among them, 49 were classified as threatened, including the yellow-tailed woolly monkey and the tree monkey.

Larsen said the discoveries reinforced the need to protect the area.

"Unless steps are taken now to safeguard these sites and help restore parts of the landscape ... there's a strong chance they won't persist in the long term," Larsen said.