{"created":"2023-06-19T07:30:50.314548+00:00","id":897,"links":{},"metadata":{"_buckets":{"deposit":"3110908d-3566-4af6-9a98-76b5cf186b97"},"_deposit":{"created_by":3,"id":"897","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"897"},"status":"published"},"_oai":{"id":"oai:nodai.repo.nii.ac.jp:00000897","sets":["47:48:194:196"]},"author_link":["4448","4450","4449","4447"],"item_1_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-09-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"43","bibliographicPageStart":"36","bibliographicVolumeNumber":"66","bibliographic_titles":[{}]}]},"item_1_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"国内の生物多様性ホットスポットに指定されている琉球列島において，農地化は人為的な環境改変の一つの要因であり，生態系に負の影響を与えてきた可能性がある。一方で，農地は食料生産のみならず生物多様性の保全効果があるなど，農地の多面的機能には近年注目が高まっている。これまで琉球列島では農業生態系における生物多様性調査はほとんど行われていなかったことに加え，従来の生物多様性調査では脊椎動物はカエル類と魚類に限られていた現状がある。農業生態系において両生類と爬虫類はその環境を物語る重要な生物である。これらの種間には生態学的，生理学的に共通する特徴がいくつかあるが，農地拡大のような人為的撹乱に対する適応力には違いがあり，両者は生物多様性評価の指標種として有用であることが示唆されている。本研究は石垣島と西表島の農地（水田とサトウキビ畑）6地点と森林2地点で両生類・爬虫類生息調査を合計61回行い，農地における生物相の特徴を評価した。調査の結果，多くの森林依存性の両生類・爬虫類が両島の農地で確認され，農地間で生物相に違いが見られた。この違いは農地が立地する周辺の森林環境の差異による可能性が示唆された。Hornの重複度指数（R0）に基づく動物群集構造のデンドログラム解析を行ったところ，本研究の調査地は大きく水田クラスターと森林クラスターの2群集に区分された。この結果は水田の存在が群集構成を左右する重要な景観要素であることを示唆している。そして森林クラスターがこれらの島に生息する両生類・爬虫類の本来の生息環境を反映した群集構成と仮定すると，水田クラスターは独自の群集を構成したグループであることが示唆された。本研究による石垣島と西表島の農地に生息する両生類・爬虫類相調査はこれらの島の農地が琉球列島の生物多様性を維持する機能を有した農業生態系である可能性を示した。","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"In the Ryukyu Islands, which is designated as a biodiversity hotspot in Japan, conversion to cropland is one of the factors for artificial environmental modification and may have had a negative impact on the ecosystem.  On the other hand, it has been noted in recent years that the agroecosystem is useful for the conservation of biodiversity.  Biodiversity has rarely been surveyed in agroecosystems in the Ryukyu Islands.  In addition, biodiversity surveys of vertebrates have conventionally been restricted to frogs and fish.  Amphibians and reptiles are important taxa that reflect the environment of agricultural land ecosystems.  Although these species have some common ecological and physiological characteristics, they differ in their adaptability to anthropogenic disturbances such as agricultural land expansion, and amphibian and reptile species are suggested as useful indicators for biodiversity assessment.  In this study, a total of 61 amphibian and reptile habitat surveys were conducted at 6 farmlands (paddy fields and sugar cane fields) and 2 forests on Ishigaki Island and Iriomote Island to evaluate the characteristics of fauna on the farmlands.  As a result of the survey, many forest-dependent species of amphibians and reptiles were found on the farmlands of both islands, and differences in fauna were observed between farmlands.  It was suggested that this difference may be due to the difference in forest environment around the farmlands.  A dendrogram analysis of the animal community structure based on Hornʼs multiplicity index (R0) revealed that the study sites of this study were broadly divided into two communities, paddy and forest clusters.  This result suggests that the existence of paddy fields is an important factor that influences the composition of the community.  Assuming that the observed forest clusters reflect the natural habitat of amphibians and reptiles inhabiting these islands, it was suggested that the paddy clusters were a group of unique communities.  The survey of amphibian and reptile fauna inhabiting the agricultural land of Ishigaki Island and Iriomote Island for this study showed that the agricultural land of these islands may be an agroecosystem that has the function of maintaining the biodiversity of the Ryukyu Islands.","subitem_description_type":"Other"}]},"item_1_description_13":{"attribute_name":"レポート・講演番号","attribute_value_mlt":[{"subitem_description":"E","subitem_description_type":"Other"}]},"item_1_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"2","subitem_description_type":"Other"}]},"item_1_description_2":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P","subitem_description_type":"Other"}]},"item_1_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_1_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00164184","subitem_source_identifier_type":"NCID"}]},"item_1_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"東京農業大学農学部バイオセラピー学科"},{"subitem_text_value":"東京農業大学農学部生物資源開発学科"}]},"item_1_text_7":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Human and Animal-Plant Relationships, Faculty of Agriculture, Tokyo Univ. of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Bioresource Development, Faculty of Agriculture, Tokyo University of Agriculture"}]},"item_1_title_3":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_title":"ヤエシマショトウ　ノ　ノウギョウセイタイケイ　ニ　オケル　リョウセイハチュウルイソウ　ニ　カンスル　ケンキュウ"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"芳賀, 沙也花"},{"creatorName":"ハガ, サヤカ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"4447","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"佐々木, 剛"},{"creatorName":"ササキ, タケシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"4448","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Haga, Sayaka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"4449","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sasaki, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"4450","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-10-31"}],"displaytype":"detail","filename":"66_36.pdf","filesize":[{"value":"916.2 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"66_36","url":"https://nodai.repo.nii.ac.jp/record/897/files/66_36.pdf"},"version_id":"177abbef-1c2a-4092-9f68-76db93d64733"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"琉球列島","subitem_subject_scheme":"Other"},{"subitem_subject":"両生爬虫類相","subitem_subject_scheme":"Other"},{"subitem_subject":"農業生態系","subitem_subject_scheme":"Other"},{"subitem_subject":"生物群集解析","subitem_subject_scheme":"Other"},{"subitem_subject":"Ryukyu Islands","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"amphibian and reptilian fauna","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"agroecosystem","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"animal community structure","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":"八重山諸島の農業生態系における両生爬虫類相に関する研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"八重山諸島の農業生態系における両生爬虫類相に関する研究"},{"subitem_title":"Study on Amphibian and Reptile Fauna in Agroecosystems of the Yaeyama Islands, the Ryukyus, Japan","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["196"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-10-31"},"publish_date":"2021-10-31","publish_status":"0","recid":"897","relation_version_is_last":true,"title":["八重山諸島の農業生態系における両生爬虫類相に関する研究"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T07:40:14.647380+00:00"}