2022 Fiscal Year Final Research Report

The role of geodiversity in development of biodiversity in mountain regions

Research Project

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Project/Area Number	20H01390
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Review Section	Basic Section 04010:Geography-related
Research Institution	Senshu University
Principal Investigator	Takaoka Sadao 専修大学, 文学部, 教授 (90260786)
Co-Investigator(Kenkyū-buntansha)	苅谷愛彦専修大学, 文学部, 教授 (70323433) 佐々木明彦国士舘大学, 文学部, 准教授 (20608848) 泉山茂之信州大学, 学術研究院農学系, 教授 (60432176) 東城幸治信州大学, 学術研究院理学系, 教授 (30377618) 齋藤めぐみ独立行政法人国立科学博物館, 地学研究部, 研究主幹 (40455423)
Project Period (FY)	2020-04-01 – 2023-03-31
Keywords	ジオ多様性 / 生物多様性 / 高山地域 / 野生動物 / 生物系統地理学
Outline of Final Research Achievements	The relationship between geodiversity and biodiversity was examined in mountain ponds in Nagano Prefecture, Japan. The results showed that species-level diversity of aquatic insects is created by differences in geo-environments linked to the origin of ponds corresponding to micro-landforms, and that landforms at the small and medium scales are involved in the creation of genetic diversity. The results also suggest that species-level diversity of diatoms is established not only by differences in geo-environments linked to the formation of ponds corresponding to micro landforms, but also by the effects of barriers to dispersal by small- and medium-scale landforms. These differences may be related to differences in their dispersal abilities.
Free Research Field	自然地理学
Academic Significance and Societal Importance of the Research Achievements	本研究のように流域スケール（中地形から微地形のスケール）において、自然地理学的な環境やその多様性と結び付けて生物多様性の形成過程を理解することは、主に大陸スケールや日本列島スケールで行われてきた生物系統地理学の研究成果を成因論的な面から裏付けることに資するとともに、生物多様性の保全計画の立案やジオパークに代表される環境教育などの諸活動に対しても貢献しうるものである。