… This consideration of isolation mechanisms, along with increasing knowledge of evolutionary factors such as mutation, natural selection, and random drift, has clarified the following about evolution and isolation: The modern explanation for species differentiation by isolation since Wagner states that in geographically isolated allopatric populations, varieties differentiate due to changes in gene frequency caused by natural selection and random drift, and that the environment plays a role in guiding this process. The allopatric populations then become reproductively isolated and reach the species level. … *Some of the terminology explanations that mention "allopatric" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… このような隔離機構の考察は,突然変異,自然淘汰,機会的浮動などの進化の要因に関する知識の増大とともに,進化と隔離について次のことを明らかにした。ワーグナー以来の隔離による種の分化に対する近代的説明は,地理的に隔離された異所性allopatric集団において,自然淘汰と機会的浮動のため遺伝子頻度に変化が起こることにより品種は分化し,環境はこの過程を指導する役割を果たす。そして異所性集団は生殖的に隔離されるに至って種の域に達する。… ※「allopatric」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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