Suggestion and inspection of the rice field use to raise a conservation function of the biological diversity which assumed raptores an index

• Project/Area Number: 25450506
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: Iwate University
• Principal Investigator: AZUMA ATSUKI 岩手大学, 農学部, 講師 (10322968)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 生物多様性 / 耕作放棄地 / サシバ / チュウヒ / 水田の作付形態 / 耕作水田 / ヨシ原 / 耕作放棄 / 繁殖成績 / 八郎潟干拓地 / 冠水地 / 乾燥地 / ノスリ / 環境利用

Outline of Final Research Achievements

We investigated the use form of the rice field where a conservation function of the biological diversity which assumed raptores an index improved.　When rice field is abandoned, marsh harrier becomes reed beds who can build a nest. The marsh where the depth of the water with a few feeding damage risks such as ground mammals was kept is important to reed beds. The condition that an Gray faced buzzard decides a breeding place needs agreement of the nestling period and the appearance time of the bait, the habitation of the lizard, the habitation of the grasshopper after fledging period.　 A rice field being cultivated and existence of the grass of the ridge are important.

Research Products

• [Presentation] 藤田 剛, 東 淳樹, 野中 純, 堺 義昭, 堺 初美, 伊関文隆, 宮下 直. 繁殖成功からみた高次捕食者サシバの生息適地モデルにおける転用可能性 (2015)
  • Author(s): 藤田 剛, 東 淳樹, 野中 純, 堺 義昭, 堺 初美, 伊関文隆, 宮下 直
  • Organizer: 日本生態学会第62回全国大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2015-03-21
• [Presentation] 景観構造の地域差がもたらす高次捕食者サシバの繁殖適地の違い (2014)
  • Author(s): 藤田剛・東淳樹・野中純・堺義昭・堺初美・伊関文隆・深澤圭太・宮下直
  • Organizer: 第30回個体群生態学会大会
  • Place of Presentation: 筑波大学
  • Year and Date: 2014-10-10 – 2014-10-12
• [Presentation] Breeding habitat preference and effects of mowing on hunting success of Gray-Faced Buzzard Butastur Indicus in northern Japan. (2014)
  • Author(s): A. Azuma, Y. Kawabata, S. Kawamura, T. Itokawa and E. Kaneko
  • Organizer: 26th International Ornithological Congress 2014, Tokyo
  • Place of Presentation: 立教大学
  • Year and Date: 2014-08-19 – 2014-08-23
• [Presentation] Hunting habitat selection by Eastern Marsh Harriers in agricultural areas: a case study in the Hachiro-gatapolder. (2014)
  • Author(s): Y. Takahashi and A. Azuma
  • Organizer: 26th International Ornithological Congress 2014, Tokyo
  • Place of Presentation: 立教大学
  • Year and Date: 2014-08-19 – 2014-08-23