{"created":"2023-06-19T12:47:47.332409+00:00","id":8312,"links":{},"metadata":{"_buckets":{"deposit":"1a82ad9a-f9a3-4414-a53d-a07338e27976"},"_deposit":{"created_by":3,"id":"8312","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"8312"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:00008312","sets":["465:475:478:479:1851"]},"author_link":["25981","25982","25980","25979"],"item_3_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Avifauna of Nishinoshima Island, the Ogasawara Islands, in 2019"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"46","bibliographicPageEnd":"94","bibliographicPageStart":"79","bibliographic_titles":[{"bibliographic_title":"小笠原研究 = Ogasawara research"}]}]},"item_3_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"KAWAKAMI, Kazuto"}],"nameIdentifiers":[{"nameIdentifier":"25981","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"OYAMADA, Yusuke"}],"nameIdentifiers":[{"nameIdentifier":"25982","nameIdentifierScheme":"WEKO"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2013年からの噴火で旧島のほとんどが溶岩に覆われた西之島において、鳥類相の現状と変化を明らかにするため、2019年9月3日～5日に上陸して調査を行った。その結果、旧島およびその周辺でカツオドリ、アオツラカツオドリ、オナガミズナギドリ、クロアジサシ、オオアジサシの雛や卵など繁殖の証拠が得られた。特にカツオドリは旧島周辺だけで約400個体の雛が確認され、噴火による撹乱後に繁殖集団が回復し、溶岩上や海岸など新たな陸地に進出していることが明らかになった。カツオドリの繁殖期が小笠原の他地域に比べて長期化していたが、これは高密度化が原因かもしれない。海鳥は栄養塩供給や種子散布など多くの生態系機能を持つため、新たな陸地に繁殖地を拡大することで生態系の成立を促進する可能性がある。","subitem_description_type":"Abstract"},{"subitem_description":"In September 2019, a field survey was conducted to determine the current status of avifauna on Nishinoshima, a volcanic island that is part of the Ogasawara Islands. Nishinoshima has been broadly covered with lava flows due to a series of eruptions which began in 2013. Evidence of breeding for five seabird species (Brown Booby, Masked Booby, Wedge-tailed Shearwater, Brown Noddy, and Greater Crested Tern) was confirmed near a small remnant of the former island. The largest number of sightings was for the brown booby, and approximately 400 chicks were detected around the remnant area. This species has expanded its breeding area into newly established ground created by the eruptions. The breeding season of this species became longer than on the other islands of the Ogasawara Islands. This might be due to the high density of the breeding population caused by reduced breeding habitat due to lava flows. Since seabirds have several important ecological functions, such as seed dispersal and nutrient input, their range expansion to new habitats promotes the establishment of ecosystems.","subitem_description_type":"Abstract"}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"首都大学東京小笠原研究委員会"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00032332","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03868176","subitem_source_identifier_type":"ISSN"}]},"item_3_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"川上, 和人"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小山田, 佑輔"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-08-20"}],"displaytype":"detail","filename":"20001-046-005.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"20001-046-005.pdf","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/8312/files/20001-046-005.pdf"},"version_id":"f38d40b6-2a0f-40e3-bd7e-cb29c16730c2"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"海鳥","subitem_subject_scheme":"Other"},{"subitem_subject":"小笠原諸島","subitem_subject_scheme":"Other"},{"subitem_subject":"カツオドリ","subitem_subject_scheme":"Other"},{"subitem_subject":"生態系機能","subitem_subject_scheme":"Other"},{"subitem_subject":"保全","subitem_subject_scheme":"Other"},{"subitem_subject":"Brown Booby","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Conservation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ecological function","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ogasawara Islands","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Seabird","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"2019年における西之島の鳥類相","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"2019年における西之島の鳥類相"}]},"item_type_id":"3","owner":"3","path":["1851"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-09-03"},"publish_date":"2020-09-03","publish_status":"0","recid":"8312","relation_version_is_last":true,"title":["2019年における西之島の鳥類相"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T15:48:12.443892+00:00"}