Research field (5)：
Social-ecological systems
, Museology
, Biological resource conservation
, Biodiversity and systematics
, Ecology and environmental science
2021 - 2024 Establishment of social technology for early response to invasive alien aquatic plants based on ecological investigation and methodological evaluation
2018 - 2022 Building a new guideline for grassland restoration: based on soil chemical properties as the foundation of ecosystems
2017 - 2020 湿地の多面的価値評価軸の開発と広域評価に向けた情報基盤形成
2016 - 2019 Development of the learning support tools for preschool children and teachers of kindergarten: helping them to know how to use museums effectively
2015 - 2018 How had grasslands turned out to woodlands in Satoyama landscapes? ;pursuing its process for getting better management methods for working landscapes.
2014 - 2018 Demographic history and local adaptation of Japanese Polemonium which all taxa are endangered
2016 - 2017 西表島の石灰岩地における希少植物ホットスポットと人間活動の関係
2012 - 2017 The project "Exploring Nature in the Seto Inland Sea" supported by the vast regional cooperation from some of the natural history museums of western Japan and demonstration of museum cooperation
Masashi Yokogawa. Publishing the red list of vascular plants in Nose Town, Osaka Prefecture: Details of creation "Organisms to Cherish in Nose" and plants in crisis. Bulletin of Kansai Organization for Nature Conservation. 2023. 45. 2. 103-113
Masashi Yokogawa. Discovery a specimen of Suaeda glauca (Bunge) Bunge collected from Osaka Prefecture, Japan in 1896. 2023. 77. 51-56
Michio Tsutsumi, Syuntaro Hiradate, Masashi Yokogawa, Eri Yamakita, Masahito Inoue, Yoshitaka Takahashi. A single application of fertilizer can affect semi-natural grassland vegetation over half a century. PLOS ONE. 2022. 17. 11. e0275808-e0275808
A new record of Typha laxmannii Lepech. from Okushiri Island, and specimen records of T. laxmannii from Hokkaido, Japan. 2022. 70. 2. 175-180
Masashi Yokogawa. Records and habitat of Epipogium roseum (D.Don) Lindl. in Osaka Prefecture, Japan. Bulletin of the Osaka Museum of Natural History. 2022. 76. 143-147
Differences in the habitats of Symplocos konishii, S. cochinchinensis and S. theophrastifolia, and discussion of their speciation
(The 71st Annual Meeting of the Ecological Society of Japan 2024)
2010 - 2012 Kyoto University Faculty of Agriclture Division of Forest and Biomaterials Science
2008 - 2010 Kyoto University Faculty of Agriclture Division of Forest and Biomaterials Science
2004 - 2008 The University of Shiga Prefecture School of Environmental Science Department of Ecosystem Studies
Work history (3)：
2019/04 - 現在 Osaka Museum of Natural History Laboratory of Botany curator
2012/11 - 2019/03 Osaka Museum of Natural History Laboratory of Botany limited-term curator
2010/04 - 2012/10 Kyoto University Laboratory of Forest Biology, Faculty of Agricluture Research Fellowship for Young Scientists (DC1)
Committee career (7)：
2023/07 - 現在 宗教法人天野山金剛寺 史跡金剛寺境内保存活用計画策定委員会
2023/01 - 現在 河内長野市文化財保護審議会 委員
2020/09 - 現在 岸和田市環境審議会 委員
2019/08 - 現在 日本植物分類学会研究・普及推進委員会 委員
2023/05 - 2023/10 植生学会 第28回大会 大会実行委員会 委員
2021/06 - 2023/03 能勢町生物多様性基礎調査 委員
2013/04 - 2014/03 Red List of Osaka Prefecture Selection Working Group Vascular plants
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Association Membership(s) (8)：
The Society of Vegetation Science
, 希少生物懇話会
, 西日本自然史系博物館ネットワーク
, Kansai Organization for Nature Conservation
, The Japanese Society for Plant Systematics
, The Ecological Society of Japan
, 西日本草原研究会
, Water Plant Society, Japan
