ニューヨーク・タイムズのインスタグラム(nytimes) - 9月18日 06時57分

Newly hatched saltmarsh #sparrows are helpless. The species, which breeds in coastal marshes and lives only on the Atlantic Coast, has always been at the mercy of time and tide. But now a sea level rise of a fraction of an inch a year caused by #climatechange is pushing tides higher and higher. Since the 1990s, the sparrows’ population has been declining about 9% a year. Christopher Elphick, an ornithologist at @uconn, is working with a team to record what happens when high tides flood the nests of marsh birds. They’ve predicted that the birds will reach a threshold, when the highest spring tides come too often to allow them time to raise their young. “After that threshold is crossed,” he says, “these birds have maybe 6 years before they’re extinct.” Even now, he said, it’s common to come out and find “little baby chicks drowned everywhere.” He and his colleagues predict that the nest flooding tides will start to occur every 2 weeks from 2030 to 2060. That’s not enough time for eggs to hatch and chicks to fledge. @karstenmoran photographed Samantha Apgar, a graduate student, holding a saltmarsh sparrow chick that she assessed to be 6 to 7 days old. Swipe left to see photos of the tide rising at Hammonasset Beach State Park and the researchers setting up infrared cameras.

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