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1960 년대 미국의 대머리 독수리 개체수가 걱정스러운 감소로 인해 모든 범위의 보호 조치가 도입되었습니다. 가장 중요한 규정은 1973 년에 통과 된 멸종 위기 종법 (미국 보전법)으로, 대머리 독수리는 주력 종 중 하나였습니다.
살충제 DDT는 처음에는 무해한 것으로 간주되었지만 사용 후 대머리 독수리의 사망률이 크게 증가했습니다. 1972 년 미국의 DDT 금지 이후 대머리 독수리 개체수가 점차 회복되어 미국의 전령 동물이 더 이상 멸종 위기에 처한 것으로 간주되지 않습니다.
[이 게시물은 최고관리자님에 의해 2023-08-30 15:51:47 qa1에서 이동 됨]
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