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ID: 9d1Brb5r/pol/508483255#508487061
6/23/2025, 8:34:06 PM
>>508483255
Biologist here. Humans are the textbook "supertramp" species - highly mobile, globally distributed, almost no isolated populations.
The minimum viable population size of such a species is, as a rule-of-thumb, at least 5000 freely interbreeding individuals. For large mammals which take long to mature and reproduce slowly, it's more like 2-3 times that size. But remember this is the EFFECTIVE population size, counting ONLY those individuals who contribute to the next generation, not the actual population size needed to avoid inbreding depression. The actual population size is again several times larger. Also, depending on the genetic similarity within the initial population, it may be larger still.
tl;dr: don't expect a human population of less than 50-100.000 individuals to be safe from destruction due to inbreeding depression.
Disregard at your own risk.
Biologist here. Humans are the textbook "supertramp" species - highly mobile, globally distributed, almost no isolated populations.
The minimum viable population size of such a species is, as a rule-of-thumb, at least 5000 freely interbreeding individuals. For large mammals which take long to mature and reproduce slowly, it's more like 2-3 times that size. But remember this is the EFFECTIVE population size, counting ONLY those individuals who contribute to the next generation, not the actual population size needed to avoid inbreding depression. The actual population size is again several times larger. Also, depending on the genetic similarity within the initial population, it may be larger still.
tl;dr: don't expect a human population of less than 50-100.000 individuals to be safe from destruction due to inbreeding depression.
Disregard at your own risk.
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