…down feathers are located under the main feathers and help to conserve body heat. They are particularly well developed in waterfowl such as ducks. Semiplume feathers are intermediate between main feathers and down feathers. They have a distinct shaft, but lack hooks on the barbs, so they look similar to down feathers. These feathers are also located under the main feathers and help to conserve body heat. … *Some of the terminology explanations that mention "semiplume" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…綿羽は正羽の下にあって,体温を保持するのに役立ち,カモ類などの水鳥でとくによく発達している。半綿羽semiplumeは正羽と綿羽の中間の状態で,羽軸ははっきりしているが,羽小枝に鉤がないため外観は綿羽に似ている。この羽毛も正羽の下にあって,体温を保持する働きをする。… ※「semiplume」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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