{"created":"2023-12-01T01:22:52.181281+00:00","id":2000071,"links":{},"metadata":{"_buckets":{"deposit":"6a413ae9-66d6-4f7b-8b89-b18083b3d821"},"_deposit":{"created_by":14,"id":"2000071","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"2000071"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:02000071","sets":["465:475:478:479:1701390537003"]},"author_link":[],"item_30002_bibliographic_information29":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"86","bibliographicPageStart":"71","bibliographicVolumeNumber":"49","bibliographic_titles":[{"bibliographic_title":"小笠原研究","bibliographic_titleLang":"ja"},{"bibliographic_title":"Ogasawara research","bibliographic_titleLang":"en"}]}]},"item_30002_creator2":{"attribute_name":"作成者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"川上, 和人","creatorNameLang":"ja"},{"creatorName":"KAWAKAMI, Kazuto","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"野口, 克也","creatorNameLang":"ja"},{"creatorName":"NOGUCHI, Katsuya","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"森, 英章","creatorNameLang":"ja"},{"creatorName":"MORI, Hideaki","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"西之島は2019年12月から2020年8月までの噴火により全域が溶岩と火山灰に被覆され、旧西之島由来の陸地のない完全な新島と言える状況となった。この島の陸上生物相の現状把握のため、2021年7月と9月に調査を行った。無人航空機による調査の結果、カツオドリ、アオツラカツオドリ、クロアジサシ、セグロアジサシ、オオアジサシの繁殖が確認された。陸上に設置した自動録音装置ではオナガミズナギドリの飛来が確認された。上陸地探索で上陸した北部の海岸ではカツオドリの死体は分解が進んでいなかったものの、死体下の砂礫からノミバエ類の蛹が確認されたほか、消化管内からハマゴウの種子が検出された。このほか菌類らしき構造が確認されたが、植物は確認されなかった。海鳥の繁殖成功度は低く、現在の西之島はエコロジカルトラップになっている可能性がある。海鳥は重要な生態系機能を持ち生態系成立プロセスに大きな影響を与えるため、初期の鳥類相変化のモニタリングが不可欠である。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"The eruption from December 2019 to August 2020 had covered the entire area of Nishinoshima with lava and volcanic ash, making it a completely new island without land derived from the former Nishinoshima. In order to clarify the current status of the terrestrial biota on this island, we conducted surveys in July and September 2021. As a result of the survey using unmanned aerial vehicles, we confirmed the breeding of the brown booby, masked booby, brown noddy, sooty tern and great-crested tern. The arrival of the wedgetailed shearwater was confirmed by using acoustic recorders located on the island. The carcass of a brown booby found on the northern beach had not decomposed, but pupae of Phoridae fly were identified in the sand under the carcass, and Vitex rotundifolia seeds were found in the digestive tract of the carcass. In addition, fungus-like structures were observed, but no plants were found. The breeding success of seabirds seemed very low, and Nishinoshima might be an ecological trap. Since seabirds have important ecological functions and greatly influence the process of ecosystem establishment of Nishinoshima, it is essential to monitor the initial avifaunal changes.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_30002_file35":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-11-28"}],"displaytype":"detail","filename":"20001-049-003.pdf","format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/2000071/files/20001-049-003.pdf"},"version_id":"13f8341b-1d02-406f-962b-cabfc07182ff"}]},"item_30002_language12":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_30002_publisher10":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京都立大学小笠原研究委員会","subitem_publisher_language":"ja"}]},"item_30002_resource_type13":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_30002_source_identifier22":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"03868176","subitem_source_identifier_type":"PISSN"},{"subitem_source_identifier":"AN00032332","subitem_source_identifier_type":"NCID"}]},"item_30002_subject8":{"attribute_name":"主題","attribute_value_mlt":[{"subitem_subject":"海鳥集団繁殖地","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"エコロジカルトラップ","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"小笠原諸島","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"カツオドリ","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"噴火","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"Brown booby","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ecological trap","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Eruption","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ogasawara Islands","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Seabird colony","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_30002_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"2021年における西之島の陸上生物相","subitem_title_language":"ja"},{"subitem_title":"Terrestrial biota of Nishinoshima Island, the Ogasawara Islands, in 2021","subitem_title_language":"en"}]},"item_30002_version_type15":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_title":"2021年における西之島の陸上生物相","item_type_id":"30002","owner":"14","path":["1701390537003"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-11-28"},"publish_date":"2023-11-28","publish_status":"0","recid":"2000071","relation_version_is_last":true,"title":["2021年における西之島の陸上生物相"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2023-12-11T02:53:43.391968+00:00"}