Last Updated：2025/12/05

A sudden (normally temporary) decrease in a population typically due to a stressful situation

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population bottleneck

Source Word

population bottleneck

Noun

A sudden (normally temporary) decrease in a population typically due to a stressful situation

Japanese Meaning

ストレス状況によって通常は一時的に個体群が急激に減少する現象 / 突然の、通常は一時的な集団数の減少現象

The island's native bird species suffered a severe population bottleneck after the volcanic eruption, reducing genetic diversity for generations.

その島の在来の鳥類は火山噴火の後、深刻な個体数の急減に見舞われ、何世代にもわたって遺伝的多様性が縮小した。

Sense（1）

A sudden (normally temporary) decrease in a population typically due to a stressful situation

population bottlenecks

（ plural ）