Kin recognition by calls and inbreeding avoidance in an isolated avian population on oceanic island.

大洋岛屿上孤立的鸟类种群中通过叫声进行亲属识别和避免近亲繁殖。

• 批准号: 21570022
• 负责人: TAKAGI Masaoki
• 金额: $ 3.16万
• 依托单位: Osaka City University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21570022/
• 关键词: ダイトウコノハズク; リュウキュウコノハズク; 出生地分散; 繁殖分散; 血縁認識; 近交弱勢; 近親交配; 鳴き声; 隔離個体群; 音声コミュニケーション; 海洋島; フクロウ類

Fledgling male Daito Scops Owls settled in vacant sites near each nest as soon as possible they can after fledging, and fledgling females leisurely settled far away from than their nests. Genetic analyses uncovered that pair formation occurred between unrelated individuals, and extra-pair fertilizations occurred in the population. Heterozygosities in owlets by extra-pair fertilization were higher than by pair fertilization. Females chose genetically dissimilar males as their social mates, and in addition married females accepted copulation with genetically more dissimilar males. It was also suggested that males could recognize the differences in hoot calls. The similarity of hoots between a social father and his son, and the dissimilarity of hoots between a social father of females and the married male are verifying by pedigree analyses of hoots.

初出茅庐的雄性大东角鸮在羽翼未丰后尽快在每个巢穴附近的空地上定居，而初出茅庐的雌性则悠闲地在远离巢穴的地方定居。遗传分析发现，成对的形成发生在不相关的个体之间，并在种群中发生额外的配对受精。对外受精的幼鸽杂合度高于对外受精的幼鸽。女性选择基因不同的男性作为他们的社会伴侣，此外，已婚女性接受交配与基因更不同的男性。研究还表明，雄性可以识别出叫声的差异。社会父亲与其儿子的叫声相似，而女性社会父亲与已婚男性的叫声不同，这一点通过对叫声的系谱分析得到了验证。

项目成果

BREEDING ECOLOGY AND HABITAT USE OF THE DAITO SCOPS OWL (OTUS ELEGANS INTERPOSITUS) ON AN OCEANIC ISLAND

• DOI: 10.3356/jrr-10-82.1
• 发表时间: 2011-12-01
• 期刊: JOURNAL OF RAPTOR RESEARCH
• 影响因子: 1.7
• 作者: Akatani, Kana;Matsuo, Taro;Takagi, Masaoki
• 通讯作者: Takagi, Masaoki

Ecological study of avian malaria vectors on the island of Minami-daito, Japan.

日本南大东岛禽疟疾媒介的生态研究。

• 发表时间: 2009
• 期刊: Journal of the American Mosquito Control Association
• 影响因子: 1
• 作者: Tsuda Y;Matsui S;Saito A;Akatani K;Sato Y;Takagi M & Murata K
• 通讯作者: Takagi M & Murata K

フクロウの奇妙な亜種分布-鳴き声からの検討-

猫头鹰的奇怪亚种分布-从叫声中检查-

• 发表时间: 2010
• 作者: 森美由希;井上千歳;谷川智一;村濱史郎;松室裕之;高木昌興
• 通讯作者: 高木昌興

亜種ダイトウコノハズクの環境選択と個体の質・なわばりの質が繁殖成績に与える影響

环境选择、个体质量和领地质量对大东角鸮繁殖性能的影响

• 发表时间: 2009
• 作者: 赤谷加奈;松尾太郎;高木昌興
• 通讯作者: 高木昌興

Predation risk of eggs and nestlings relative to nest-site characteristics of the

与巢穴特征相关的蛋和雏鸟的捕食风险

• 发表时间: 2012
• 期刊: Lanius bucephalus
• 作者: 井上修平;林秀則;村田紀夫;西山佳孝;Shin Matsui & Masaoki Takagi
• 通讯作者: Shin Matsui & Masaoki Takagi