An heatwave in 2019, where temperatures spiked to 111.2°F in the shade may have been responsible for the death of more than 300 Magellanic penguins.
... [+]shows that a heatwave in January 2019 was responsible for the death of Magellanic penguins in Argentina.
Named after Portuguese explorer Ferdinand Magellan who spotted them in 1520, the Magellanic penguins are predominantly found in South America and the Falkland Islands. One of their largest breeding colonies is in Argentina, where the 2019 heatwave occurred during the austral summer. On January 19, temperatures in a shady spot at Punta Tombo, along Argentina’s southern coast, reached 44°C , the highest ever recorded since co-author P. Dee Boersma began studying this population of Magellanic penguins in 1982. Shortly thereafter, University of Washington scientists surveyed the population, and discovered that 354 adults had perished.
“This extreme event fell near the tail end of the breeding season for Magellanic penguins, so it killed a large number of adults, as well as chicks,” lead author Katie Holt. “It’s the first time we’ve recorded a mass mortality event at Punta Tombo connected to extreme temperatures.”De Agostini via Getty Images
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