V2EX inclusive fitness

Inclusive Fitness

释义 Definition

包容性适应度(inclusive fitness):进化生物学中的概念,指一个个体通过直接繁殖产生后代的成功(直接适应度),以及通过帮助具有共同基因的亲属繁殖而间接增加自身基因在群体中传播的成功(间接适应度)。常用于解释利他行为为何在自然选择下仍可能进化。

发音 Pronunciation (IPA)

/nklusv ftns/

例句 Examples

Inclusive fitness helps explain why animals sometimes care for relatives’ offspring.
包容性适应度有助于解释为什么动物有时会照顾亲属的幼崽。

From an inclusive fitness perspective, sacrificing time to assist siblings can increase the spread of shared genes in the next generation.
从包容性适应度的角度看,牺牲时间去帮助兄弟姐妹,可能会提高共同基因在下一代中的传播。

词源 Etymology

inclusive 来自拉丁语词根,意为“包含在内”;fitness 在生物学语境中指“适应度”,即繁殖成功与基因传递的相对能力。短语 inclusive fitness 作为术语主要与英国进化生物学家 W. D. Hamilton 在 1960 年代提出的亲缘选择理论相关,用来将“对亲属的帮助”纳入自然选择的解释框架。

相关词 Related Words

文学与名著中的用例 Literary Works

  • W. D. Hamilton, The Genetical Evolution of Social Behaviour(1964):提出并系统阐述包容性适应度与亲缘选择思想。
  • Richard Dawkins, The Selfish Gene(1976):以通俗方式讨论亲缘选择与包容性适应度相关思路。
  • E. O. Wilson, Sociobiology: The New Synthesis(1975):在社会生物学框架中广泛涉及适应度、亲缘与利他行为的解释。
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