季节型 seasonal form

互联网2013-11-14

710

指同一种生物的形态和颜色可随季节而发生变化的一种类型。例如一年发生两次以上的蝶的形态和彩色，可分为春型、夏型和秋型（如 Araschnia bure－ jana）；浮游动物（如水蚤）的形态，夏季和冬季就不一样；雷鸟和兔（ Lepus brachyurus angustidens）的毛色，有夏季和冬季的变化。

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