Midway Atoll eradicated invasive rats after Bonin petrels had fallen to fewer than 5,000 nesting pairs

Aug 22, 2026 - 01:30
Midway Atoll eradicated invasive rats after Bonin petrels had fallen to fewer than 5,000 nesting pairs

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Invasive rats were removed from Midway Atoll, which had devastated native seabird populations. Bonin petrel numbers surged from under five thousand to over one hundred thirty-five thousand pairs. This eradication effort also allowed native vegetation to recover and stabilize the fragile islands. However, invasive house mice later emerged as a new threat to nesting albatrosses. Strict biosecurity measures now protect this vital Pacific sanctuary from further introductions.

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