适应度衡量标准的转换——从繁殖到生存
The Change of Fitness's Measure:From Reproduction to Survival
李亚娟1
作者信息
- 1. 天津城建大学马克思主义学院,天津 300384
- 折叠
摘要
适应度是演化生物学中的重要概念,其衡量标准通常被视作繁殖,即根据后代数量的多少判定生物演化是否成功.布沙德认为,这一界定因无法解释颤杨、无性繁殖生物体和共生体的适应性变化而须加以修正,此类适应性变化是对相关生物系统组成部分变化的缓慢累积,它们无法用繁殖加以界定.对此,布沙德从繁殖转向生存,将繁殖视作生物系统维持自身生存的策略之一,提出了长久持存理论.
Abstract
Fitness is a central concept in Evolutionary Biology.Generally,reproduction is regarded as its measure,which means that whether an organ-ism's evolution is success depends on how many offspring it has.In Bouchard's view,this definition cannot account for the adaptive changes of the qua-king aspen,clonal organisms,and symbionts.These adaptive changes are obtained through slow accumulation of changes among the parts of the biological system not through reproduction.In Persistence Through Time,Bouchard has suggested that fitness needs some adjusting.The measure of fitness ought to be persistence rather than reproduction.Reproduction is regarded as one of bilolgical systems'survival strategies.
关键词
适应度/繁殖/长久持存理论Key words
fitness/reproduction/Persistence Through Time引用本文复制引用
基金项目
天津市哲学社会科学规划项目(TJZXQN22-003)
国家社科基金一般项目(21BZX044)
出版年
2024
NETL
NSTL
万方数据