Research activity information

• Mar. 2025 東京大学大学院農学生命科学研究科, 東京大学大学院農学生命科学研究科長賞


• Sep. 2024 The Science of Nature, 2024 Arnold Berliner Award, Female solitary bees flexibly change foraging behaviour according to their floral resource requirements and foraging experiences

  Yuta Nagano


• Aug. 2024 International Congress of Entomology 2024, Presentation Awards for Young Scientists, Nocturnal moths contribute to one-fourth of buckwheat pollination services

  Yuta Nagano, Tadashi Miyashita


• Mar. 2022 日本生態学会, ポスター最優秀賞, 畦畔植生はいかにソバの送粉サービスを高めるか：物理構造 vs 花資源

  永野裕大, 横井智之, 宮下直


• Nov. 2021 The Society of Population Ecology, Student Prize, 訪花昆虫群集の２つのβ多様性を介した環境ー送粉サービスの因果関係

  永野裕大, 宮下直


• Mar. 2021 University of Tsukuba, Graduate School Dean's Award

  永野裕大


• Mar. 2019 University of Tsukuba, Dean's Award

  永野裕大

• Does clearing forests increase the abundance of crop pollinators?

  Hisatomo Taki, Yuta Nagano, Kae Natsume, Tadashi Miyashita

  Elsevier BV, Feb. 2026, Ecological Engineering, 223, 107834 - 107834, English

  [Refereed]

  Scientific journal


• Set-aside of grassland field margins enhances buckwheat pollination services in small-holder agricultural landscapes

  Yuta Nagano, Tomoyuki Yokoi, Hisatomo Taki, Tadashi Miyashita

  Elsevier BV, Aug. 2025, Agriculture, Ecosystems and Environment, 387, 109628 - 109628, English

  [Refereed]

  Scientific journal


• Utilization of floral rewards in male of long-horned bee throughout their lives

  Yuta Nagano, Naoto Wabiko, Tomoyuki Yokoi

  Lead, Springer Science and Business Media LLC, Apr. 2025, Applied Entomology and Zoology, English

  [Refereed]

  Scientific journal


• Contribution of nocturnal moth pollination to buckwheat seed set

  Yuta Nagano, Tadashi Miyashita

  Abstract Although diverse wild pollinators contribute to crop pollination, nocturnal pollinators have been largely overlooked. In this study, we focused on buckwheat, which relies on various insect species for pollination. Since buckwheat flowers are believed to close in the evening, earlier studies have exclusively examined the role of diurnal pollinators. However, some buckwheat flowers have been observed opening at night; thus, we can assume that nocturnal insects play a role in buckwheat pollination. Our field observations showed that 80% of buckwheat flowers that opened in the morning remained open at night. The insects visiting buckwheat flowers at night belonged to the moth families of Noctuidae, Crambidae, and Pyralidae. These moths were all found to have buckwheat pollen on their bodies. To quantify the contribution of nocturnal pollinators to seed set, we conducted a pollinator exclusion experiment using the following bagging treatments: no pollinators (bagging for 24 h), only diurnal pollinators (bagging from 18:00 to 06:00), only nocturnal pollinators (bagging from 06:00 to 18:00), and natural pollination (no bagging). The results showed that the seed set decreased in the following order: natural pollination, diurnal pollinators only, nocturnal pollinators only, and no pollinators, with one-fourth of the buckwheat seed sets resulting from nocturnal pollinators. However, the proportion of flowers open at night decreased as the flowering period progress, and the role of nocturnal pollinators appeared to decline over time. Our findings suggests that nocturnal pollinators may complementarily increase buckwheat seed sets, emphasizing the need to investigate overlooked nocturnal pollinators in crop pollination services.

  Springer Science and Business Media LLC, Dec. 2024, Arthropod-Plant Interactions, 19(1) (1), English

  [Refereed]

  Scientific journal


• Female solitary bees flexibly change foraging behaviour according to their floral resource requirements and foraging experiences

  Yuta Nagano, Naoto Wabiko, Tomoyuki Yokoi

  Lead, Springer Science and Business Media LLC, Jul. 2023, The Science of Nature, 110(4) (4), 1 - 8, English

  [Refereed]

  Scientific journal


• Changes in pollinators' flower visits and activities potentially drive a diurnal turnover of plant‐pollinator interactions

  Yuta Nagano

  Wiley, Jun. 2023, Ecological Entomology

  [Refereed]

  Scientific journal


• Rapid bluing and slow browning: reversible body color change according to ambient temperature in damselfly Indolestes peregrinus (Ris, 1916)

  Yuki Hasebe, Yuta Nagano, Tomoyuki Yokoi

  Wiley, Mar. 2023, Entomological Science, 26(1) (1), English

  [Refereed]

  Scientific journal


• Honeybees with extensive foraging experience rob nectar more frequently

  Yuta Nagano, Tomoyuki Yokoi

  Springer Science and Business Media LLC, Feb. 2022, The Science of Nature, 109(1) (1), English

  [Refereed]

  Scientific journal


• Diversity of co‐flowering plants at field margins potentially sustains an abundance of insects visiting buckwheat, Fagopyrum esculentum , in an agricultural landscape

  Yuta Nagano, Tadashi Miyashita, Hisatomo Taki, Tomoyuki Yokoi

  Lead, Wiley, Jul. 2021, Ecological Research, English

  [Refereed]

  Scientific journal


• Nectar Robbing Behavior on Comfrey, Symphytum officinale L. (Boraginaceae), in Japan

  Yuta Nagano

  Entomological Society of Washington, Jan. 2021, Proceedings of the Entomological Society of Washington, 123(1) (1), 262 - 266, English

  [Refereed]

  Scientific journal

• 昆虫科学の最前線 = The forefront of insect sciences

  日本昆虫科学連合

  Contributor, 種間相互作用のネットワーク, 丸善出版, Mar. 2026, Japanese, ISBN: 9784621312650

• 分散媒介者を介して生じる群集の景観依存性：訪花昆虫が運ぶ花蜜内細菌を例に

  永野裕大, 夏目佳枝, 宮下直, 深見理, 辻かおる

  第41回個体群生態学会, Sep. 2025, Japanese

  Poster presentation


• Nocturnal moths contribute to one-fourth of buckwheat pollination services

  Yuta Nagano, Tadashi Miyashita

  第27回国際昆虫学会議, Aug. 2024, English

  Nominated symposium


• Nocturnal pollination services by moths on buckwheat, a neglected function of common insects

  Yuta Nagano, Tadashi Miyashita

  第71回日本生態学会, Mar. 2024, English

  Oral presentation


• The complementarity effects on pollination services among multiple processes in a plant-pollinator network: trophic and non-trophic mechanisms

  Yuta Nagano, Tadashi Miyashita

  The 10th EAFES interaction congress, Jul. 2023, English

  Public symposium


• 多様な野生植物による多重プロセスの相補性効果と送粉サービス：栄養・非栄養相互作用

  永野裕大, 宮下直

  第70回日本生態学会, Mar. 2023, Japanese

  Oral presentation


• Wild plants at field margins enhance pollination services of buckwheat: indirect effect through "trophic" and "non-trophic" interactions in a plant-pollinator network

  Yuta Nagano, Tadashi Miyashita

  BES Annual Meeting 2022, Dec. 2022, English

  Poster presentation


• Harnessing the functions of wild plants at field margins on crop pollination services: trophic and non-trophic mechanisms

  Yuta Nagano, Tadashi Miyashita

  日本生態学会関東地区公開シンポジウム Biodiversity, Sustainable agriculture, and Health, Oct. 2022, English

  Public symposium


• 訪花昆虫の多様性は気象変動による送粉サービスの変動は安定化させるか？

  夏目佳枝, 永野裕大, 宮下直

  第38回個体群生態学会, Oct. 2022, Japanese

  Poster presentation


• 野生植物の多機能性が支えるソバの送粉サービス：植物ー送粉者ネットワークにおける「採餌」と「休息」を介した間接効果

  永野裕大, 宮下直

  第38回個体群生態学会, Oct. 2022, Japanese

  Poster presentation


• 畦畔植生はいかにソバの送粉サービスを高めるか：物理構造 vs 花資源

  永野裕大, 横井智之, 宮下直

  第69回日本生態学会, Mar. 2022, Japanese

  Poster presentation


• 送粉者の応答多様性をもとにした変動気象下での生物多様性ー生態系機能の関係性予測

  夏目佳枝, 長田穣, 永野裕大, 宮下直

  第69回日本生態学会, Mar. 2022, Japanese

  Poster presentation


• Abundance gradient among pollinator communities on buckwheat is important for seed set and is influenced by local management in a small-holder agricultural landscape

  Yuta Nagano, Tadashi Miyashita

  Ecology Across Borders (British Ecological Society Annual Meeting 2021), Dec. 2021, English

  Poster presentation


• Pollination service by ants in common buckwheat, Fagopyrum esculentum, in a Japanese agricultural landscape

  Kae Natsume, Yuta Nagano, Tadashi Miyashita

  Ecology Across Borders (British Ecological Society Annual Meeting 2021), Dec. 2021, English

  Poster presentation


• 訪花昆虫による結実効率推定の新手法：ビデオ撮影と階層モデルの適用

  夏目佳枝, 長田穣, 永野裕大, 宮下直

  第37回個体群生態学会, Nov. 2021, Japanese

  Poster presentation


• 訪花昆虫群集の２つのβ多様性を介した環境ー送粉サービスの因果関係

  永野裕大, 宮下直

  第37回個体群生態学会, Nov. 2021, Japanese

  Poster presentation


• 畦畔植生の維持が高めるソバの送粉サービス

  永野裕大, 宮下直, 滝久智, 横井智之

  第65回日本応用動物昆虫学会, Mar. 2021, Japanese

  Poster presentation


• Ecological intensification on pollination services: exploiting potential functions as habitat for pollinators in agricultural landscapes

  Yuta Nagano, Tadashi Miyashita, Hisatomo Taki, Tomoyuki Yokoi

  第68回日本生態学会, Mar. 2021, Japanese

  Nominated symposium


• Dynamism of visitation frequency: video recording of buckwheat flowers reveals spatiotemporal patterns of pollination service

  Kae Natsume, Yuta Nagano, Tadashi Miyashita

  第68回日本生態学会, Mar. 2021, Japanese

  Poster presentation


• 局所および景観スケールにおける生息地が支えるソバの送粉サービス

  永野裕大

  第41回関東地区生態学関係修論発表会, Feb. 2021, Japanese

  Oral presentation


• Appropriate mowing management at field margins enhances pollination services on buckwheat in a small-holder agricultural landscape

  Yuta Nagano, Tadashi Miyashita, Hisatomo Taki, Tomoyuki Yokoi

  Festival of Ecology (British Ecological Society Annual Meeting 2020), Dec. 2020, Japanese

  Poster presentation


• おばあちゃんは蜜泥棒：種内における盗蜜頻度の変動要因としての「経験」の重要性

  永野裕大, 横井智之

  第36回個体群生態学会, Nov. 2020, Japanese

  Poster presentation


• Diverse wild plants on ridges enhance pollination services to buckwheat: the win-win relationship between conserving biodiversity and crop production

  Yuta Nagano, Tadashi Miyashita, Hisatomo Taki, Tomoyuki Yokoi

  第67回日本生態学会, Mar. 2020, Japanese

  Nominated symposium


• The changes in foraging behavior with aging and ovarian conditions in female solitary bees

  Yuta Nagano, Naoto, Wabiko, Tomoyuki Yokoi

  第67回日本生態学会, Mar. 2020, Japanese

  Poster presentation


• The effects of local landscape and farmland management on pollinators and pollination services in agricultural ecosystem

  Yuta Nagano, Tadashi Miyashita, Tomoyuki Yokoi

  British Ecological Society Annual Meeting 2019, Dec. 2019, English

  Poster presentation


• ニホンミツバチによるレタス齧り行動とレタス含有成分の関係

  田中千聡, 永野裕大, 日下石碧, 池本美都, 藏滿司夢, 松山茂, 山路恵子, 横井智之

  第63回日本応用動物昆虫学会, Mar. 2019, Japanese


• The effect of wild flowering plants and landscape structures on pollinator community of common buckwheat

  Yuta Nagano, Tomoyuki Yokoi

  第66回日本生態学会, Mar. 2019, Japanese

  Poster presentation

• Entomological Society of Washigton

  2020 - Present


• 日本応用動物昆虫学会

  2020 - Present


• 個体群生態学会

  2020 - Present


• British Ecological Society

  2019 - Present


• 日本生態学会

  2018 - Present

• ソバ生産における生態学的集約化：送粉昆虫と野生植物の時空間動態から探る

  永野 裕大

  日本学術振興会, 科学研究費助成事業, 特別研究員奨励費, 東京大学, 22 Apr. 2022 - 31 Mar. 2024

• 昆虫採集楽しみ そば味わう

  長野日報, 12 Sep. 2024

  Paper


• あぜ草刈り控え昆虫多様化 ソバ受粉促し結実３割増

  日本農業新聞, 04 Oct. 2023

  Paper


• ソバの開花前からのアゼ草刈りをやめると結実率３割アップ

  Myself, 農山漁村文化協会, 現代農業, Jul. 2023

  Paper


• NHKスペシャル ”生きもの超・進化論”ワールドキッズ・ティーン特別編

  NHK, Jan. 2023

  Media report