2022 Fiscal Year Final Research Report
Landscape-scale evaluation of forage area in European honey bees
Project/Area Number |
20K06118
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 39070:Landscape science-related
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Research Institution | National Agriculture and Food Research Organization |
Principal Investigator |
Okubo Satoru 国立研究開発法人農業・食品産業技術総合研究機構, 農業環境研究部門, グループ長補佐 (30334329)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | セイヨウミツバチ / 尻振りダンス / リアルタイム解析 / 離散フーリエ解析 / 採餌範囲推定マップ |
Outline of Final Research Achievements |
Waggle dances are an important resource for researchers and beekeepers understanding the foraging areas of honeybees. However, decoding these dances is time consuming. Here, we developed a real-time waggle-decoding system, consisting of a high-frame-rate camera and an edge-computing device, that was applicable to field apiaries of the European honeybees, Apis mellifera. Fast Fourier transform of each image pixel was used to detect the typical frequency of abdominal waggling in bees, and clumps of pixels potentially indicative of waggling candidates were then connected as a consequent waggle run by image morphological analysis. The two processes worked in real time. The overall accuracy of waggle-run detection in two video recordings was 50% to 82% of that for manually decoded waggle runs. Our results suggest that our real-time decoding method is comparable to, and is able to augment, manual interpretation.
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Free Research Field |
景観生態学
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Academic Significance and Societal Importance of the Research Achievements |
セイヨウミツバチの採餌場所推定に用いられる尻振りダンスの解読は非常に時間がかかっていたが、本研究で精度高くリアルタイムで自動解読が可能なシステムを開発した。比較的安価なシステム構成であるため、例えば養蜂家が単花蜜の情報として採餌場所を把握するのに使用できるなど、研究成果の社会実装が可能である。また、このシステムを用いることで長時間、高頻度で採餌場所の推定が可能になり、蜂群の要求資源量に応じた採餌範囲や採餌行動の時間的変動、大規模で好適な蜜源植物(例えばシロツメクサなど)がある場合の安定した採餌行動など、学術的にも意義深い知見の蓄積を行うことができた。
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