… Some scholars cite a directional change in the environment as the cause of directional morphological change. This concept is called orthoselection, and has been popularized as an alternative to the theory of orthoselection. Some scholars simply emphasize that the physical and chemical conditions on Earth (such as the climate) have changed in a certain direction, but the evidence for this is often insufficient. … *Some of the terminology explanations that mention "orthoselection" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 形態変化の方向性の原因としてある学者は環境の一定方向への変化をあげている。これは定向淘汰orthoselectionと呼ばれる概念で,定向進化説に代わる学説として一般に広められた。この中には単純に地球上の物理・化学的条件(例えば気候)が一定の方向に変わったことを強調する人もいるが,その裏づけは多くの場合十分ではない。… ※「orthoselection」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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