消失的旋律：热带雨林鸟类神秘减少

he lilting song of the musician wren once commonly heralded sunrise in the central Amazon jungle. But in October 2025 it was a rare wonder when the flutelike melody cut through the dawn gloom. FADING MELODIES “Did you hear that?” whispered Stefano Avilla, an ornithologist and Federal University of Amazonas (UFAM) Ph.D. student. “Good ear,” said Jared Wolfe, a Michigan Technological University wildlife ecologist. “This bird is in rapid decline. You don’t hear it very often.” Here in the Brazilian Amazon and in other tropical forests across the Americas, birds are vanishing from surprising places—expanses of forest untouched by fires, chainsaws, or bulldozers. …