HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
北方生物圏フィールド科学センター  >
雑誌発表論文等  >

The disruption of habitat isolation among three Hexagrammos species by artificial habitat alterations that create mosaic-habitat

フルテキスト
ER25-1_41-50.pdf128.09 kBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/42621

タイトル: The disruption of habitat isolation among three Hexagrammos species by artificial habitat alterations that create mosaic-habitat
著者: Kimura, Motoko R. 著作を一覧する
Munehara, Hiroyuki 著作を一覧する
キーワード: Coastal fish
Breakwater
Human disturbance
Hybridization
Microhabitat use
発行日: 2010年 1月
出版者: Springer Japan
誌名: Ecological Research
巻: 25
号: 1
開始ページ: 41
終了ページ: 50
出版社 DOI: 10.1007/s11284-009-0624-3
抄録: In coastal areas in Japan, three species of greenling (Hexagrammos spp.) can hybridize. In a natural reef setting we showed that Hexagrammos agrammus and H. octogrammus established their breeding territories in a shallow area where seaweed was abundant, whereas H. otakii established breeding territories in a deep area that was sparsely covered with seaweed. This difference in habitat use resulted in H. otakii being distributed separately from the other two species, thereby reducing the potential for hybridization. However, all the three species co-occurred in an artificial area near a breakwater. This area is characterized by steep slopes and complex stacked concrete structures, which create a mosaic-habitat consisting of a shallow environment with seaweed and a deep environment with sparse seaweed, allowing the three species to breed within a single area. Our results suggest that man-made structures can create an artificial mosaic-habitat that can disrupt habitat isolation and promote hybridization between species.
Rights: The original publication is available at www.springerlink.com
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/42621
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 木村 幹子

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学