...In this view, the traits of living organisms are understood as an adaptive strategy, and mathematical methods such as game theory and optimal control theory are used to study them. The measure of what is optimal is how many successful offspring an individual of that genotype can produce, which is called reproductive success or fitness. Many ocean fishes lay hundreds of thousands or millions of tiny eggs at a time, while many stream fishes lay thousands or even fewer large eggs. ... *Some terminology explanations that mention "reproductive success" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このような見方では生物の形質は一つの適応戦略と理解され,その研究にはゲーム理論や最適制御理論のような数学的方法が援用される。そのさい何が最適かをきめるものさしは,その遺伝子型の個体がどれだけ成功した子孫を残せるかであって,これを繁殖成功度reproductive successないし適応度fitnessと呼ぶ。大洋魚類の多くは一度に数十万,数百万のごく小さな卵を産み,渓流魚の多くは数千ないしそれ以下の大型の卵を産む。… ※「reproductive success」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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