{"created":"2023-12-01T01:06:12.079575+00:00","id":2000053,"links":{},"metadata":{"_buckets":{"deposit":"32130b07-57e5-4a92-9cbb-71a685703010"},"_deposit":{"created_by":14,"id":"2000053","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"2000053"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:02000053","sets":["465:475:478:479:1701390176003"]},"author_link":[],"item_30002_bibliographic_information29":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"65","bibliographicPageStart":"47","bibliographicVolumeNumber":"48","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":"南波, 興之","creatorNameLang":"ja"},{"creatorName":"NAMBA, Tomoyuki","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"オガサワラカワラヒワが減少している要因の抽出と保全計画の検討を行うため、存続可能性分析を行った。感度分析の結果、本種の個体数減少に関わっている可能性のある要因として、繁殖する属島のドブネズミによる卵等の捕食、母島のノネコによる捕食、気候変動による繁殖期の餌不足が考えられ、現状15年程度で絶滅することが予測された。本種の保全策としてドブネズミの駆除、ノネコの管理強化、生息域外保全で人工繁殖させた幼鳥を生息域内に戻す方法を検討した。その結果、保全策の単体としては個体群の減少速度を緩和させるものの、絶滅を回避することは難しかったが、これらの保全策を並行して行うことで絶滅を回避できる可能性があった。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"I conducted a population viability analysis to identify factors contributing to the decline of the Ogasawara Greenfinch population and examined conservation plans for the species. The results of the sensitivity analysis indicated that the predation of eggs by black rats on the breeding habitat, predation of Greenfinches by stray cats on the Hahajima Island, and the lack of food resources during the breeding season due to climate change were potential factors responsible for the decline in the population. Furthermore, assuming that the current population on the Hahajima Island is predicted to go extinct in about 15 years. As conservation measures for the Ogasawara Greenfinch, I considered rat control on the breeding habitat, strengthening the management of stray cats on the Hahajima Island, and returning artificially bred juveniles to the habitat as ex-situ conservation. As a result, although each measure will not be enough to mitigate the rate of decline of the Ogasawara Greenfinch population, the simultaneous implementation of all of these conservation measures will avoid the extinction of the species by increasing the population.","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":"20001-048-005.pdf","format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/2000053/files/20001-048-005.pdf"},"version_id":"959e44cc-a47c-46c8-bc44-df0831c1f591"}]},"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":"Chloris kittlitzi","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"PHVA","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"個体数","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"地域個体群の絶滅","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"保全計画","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"Conservation measures","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Extinction of local population","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Population","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_30002_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"オガサワラカワラヒワの存続可能性分析","subitem_title_language":"ja"},{"subitem_title":"Population Viability Analysis of Ogasawara Greenfinch in Ogasawara Islands","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":"オガサワラカワラヒワの存続可能性分析","item_type_id":"30002","owner":"14","path":["1701390176003"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-11-28"},"publish_date":"2023-11-28","publish_status":"0","recid":"2000053","relation_version_is_last":true,"title":["オガサワラカワラヒワの存続可能性分析"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2023-12-11T02:51:42.072245+00:00"}