存活曲线
![存活曲线](/Images/godic/202502/14/Survivorship_Curves2459.jpg")
![Die Überlebenskurven für fünf verschiedene Lebewesen (Mensch, Elefant, Krähe, Krokodil und Löwenzahn).](/Images/godic/202502/14/Ueberlebenskurve_022459.png")
![Die Überlebenskurven verschiedener Mäusepopulationen in Abhängigkeit von der Kalorienreduktion.](/Images/godic/202502/14/Caloric_restriction_022459.png")
存活曲线（survivorship curve），由美国生物学家雷蒙·普尔在1928年提出，为生态学依照物种的个体从幼体到老年所能存活的比率，所做出的统计曲线。简单来说，族群存活曲线代表着族群在不同阶段的生存适应状况，可分为3种基本类型：
Survivorship curve
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Survivorship curve 存活曲线
A survivorship curve is a graph showing the number or proportion of individuals surviving to each age for a given species or group (e.g. males or females). Survivorship curves can be constructed for a given cohort (a group of individuals of roughly the same age) based on a life table.
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