...one is the movement of a new habitat at a certain time in its life (for example, bird migration), and the other is the movement of a newborn from its birthplace to its (first) habitat. The latter is also seen in plants and sessile animals, and is called dispersal, natal dispersal, or pre-breeding dispersal. Movement within a home range and movement of the home range itself are clearly completely different phenomena, and cannot be considered as the same concept just because individuals move around. *Some terminology explanations that mention "dispersal" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一つは,一生のある時期に定住地を変える移動(例えば鳥の渡り)であり,もう一つは新生個体の出生地から(最初の)定住地までの移動である。後者は植物や固着性動物にも見られるもので,分散dispersalまたは幼期分散natal dispersalまたは繁殖前分散と呼ばれる。 行動圏内での移動と行動圏自体の移動とは,明らかにまったく別の現象であり,個体が動きまわるという点だけを見て同一の概念でとらえることはできない。… ※「dispersal」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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