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タイトル: | Remarkable spatial memory in a migratory cardinalfish. |
著者: | Fukumori, Kayoko Okuda, Noboru Yamaoka, Kosaku Yanagisawa, Yasunobu |
著者名の別形: | 福森, 香代子 |
キーワード: | Spatial memory Migration Homing behaviour Breeding territory Orientation cue |
発行日: | Mar-2010 |
出版者: | SPRINGER HEIDELBERG |
誌名: | Animal cognition |
巻: | 13 |
号: | 2 |
開始ページ: | 385 |
終了ページ: | 389 |
抄録: | The ability to orient and navigate within a certain environment is essential for all animals, and spatial memory enables animals to remember the locations of such markers as predators, home, and food. Here we report that the migratory marine cardinalfish Apogon notatus has the potential to retain long-term spatial memory comparable to that of other animals. Female A. notatus establish a small territory on a shallow boulder bottom to pair and spawn with males. We carried out field research in two consecutive breeding seasons on territory settlement by individually marked females. Females maintained a territory at the same site throughout one breeding season. After overwintering in deep water, many of them (82.1%) returned to their breeding ground next spring and most occupied the same site as in the previous season, with only a 0.56 m shift on average. Our results suggest that female A. notatus have long-distance homing ability to pinpoint the exact location of their previous territory, and retain spatial memory for as long as 6 months. |
著作権等: | The original publication is available at www.springerlink.com This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/128950 |
DOI(出版社版): | 10.1007/s10071-009-0285-1 |
PubMed ID: | 19784851 |
出現コレクション: | 学術雑誌掲載論文等 |
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