Generation Time Measures the Trade-Off between Survival and Reproduction in a Life Cycle
Generation Time Measures the Trade-Off between Survival and Reproduction in a Life Cycle
复制标题
生成时间衡量生命周期中生存和繁殖之间的权衡
DOI：
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发表时间：
2019
影响因子：
2.9
通讯作者：
A. Traulsen
中科院分区：
文献类型：
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作者：
Stefano Giaimo;A. Traulsen
生存和繁殖是适应性的两个最基本的组成部分，它们驱动着生命周期的进化。它们之间通常存在一种权衡：当生存率提高时，生育率就会下降，反之亦然。在这里，我们表明，在一个进化的最佳状态下，世代时间是衡量生命周期中总体生存和总体生育力之间权衡的强度。我们的研究结果既有助于解释已知的事实，即世代时间描述了生活在慢-快连续生命周期的速度，并可能对从长寿模式生物到人类的外推产生影响。
Survival and fertility are the two most basic components of fitness, and they drive the evolution of a life cycle. A trade-off between them is usually present: when survival increases, fertility decreases—and vice versa. Here we show that at an evolutionary optimum, the generation time is a measure of the strength of the trade-off between overall survival and overall fertility in a life cycle. Our result both helps to explain the known fact that the generation time describes the speed of living in the slow-fast continuum of life cycles and may have implications for the extrapolation from model organisms of longevity to humans.