A review found 61% of tiny populations recovered past 100 with direct conservation action.
Among species receiving no direct support, 37% went extinct and only 2% recovered to at least 100.
Researchers reviewed 141 bird and mammal species known to have fallen below 50 wild individuals since 1950. The outcomes challenge the idea that a very small population is automatically beyond help.
WHAT HAPPENED
Of 51 species that received direct action—such as predator control, habitat restoration, captive breeding or translocation—61% later reached at least 100 wild individuals. Among species without direct support, 37% went extinct and only 2% reached 100. The highest success came when managers combined action against the original threat with direct population management.
WHY THIS IS HOPESLOP
A population of 49 is not a verdict. The review shows that practical intervention can matter even after wildlife has been reduced to a number that fits in one room—and that giving up is itself a consequential conservation choice.
ORIGINAL SOURCEProceedings B / Monash UniversityRead the original report
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