2011 Fiscal Year Final Research Report
Clarifying the process of northward expansion for Fagus crenata Blume forests at their natural northern range front
| Project/Area Number |
21580189
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
MATSUI Tetsuya 独立行政法人森林総合研究所, 北海道支所, 主任研究員 (20414493)
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| Co-Investigator(Kenkyū-buntansha) |
NAMIKAWA Kanji 北海道教育大学, 教育学部, 教授 (90192244)
ITAYA Akemi 三重大学, 大学院・生物資源学研究科, 准教授 (70447861)
KITAMURA Keiko 独立行政法人森林総合研究所, 北海道支所, 主任研究員 (00343814)
IIDA Shigeo 独立行政法人森林総合研究所, 北海道支所, チーム長 (10370272)
HIRAKAWA Hirofumi 独立行政法人森林総合研究所, 北海道支所, 主任研究員
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| Project Period (FY) |
2009 – 2011
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| Keywords | ブナ / 北限 / 孤立林 / 鳥散布 / 空中写真 / 遺伝的多様度 |
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| Research Abstract |
To clarify accurate locations and distributions of isolated natural beech(Fagus crenata Blume) forests at the northernmost boundary of their range, aerial photograph and ground truth were performed. It was found that the number of isolated beech forests were at least nine, and they were the maximum of 4 km apart with each other. These isolated forests were thought to have possibly been established from bird-dispersed beech seeds. Genetic analysis showed that isolated beech forests had higher differentiation and lower genetic diversity ; however, tree ring analyses showed that the beech tree's ages were mostly under 120 years old, suggesting that the beech forests are gradually expanding their range, after occasional events of forest canopy disturbances.
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Research Products
(23 results)
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[Remarks] (2)松井哲哉、2012.02.29、北限のブナの栄枯盛衰:どこから来てどこへ行くのか?-最近の植生学や遺伝学の研究成果から-、森林総合研究所北海道地域研究成果発表会、札幌
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[Remarks] (3) NHKおはよう日本、2010.07.05、ブナ北限の研究活動について5分紹介
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[Remarks] (4) NHKおはよう北海道、2010.06.12、ブナ北限の研究活動について10分紹介
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[Remarks] (5) NHKネットワークニュース北海道、20 10.06.10、ブナ北限の研究活動について5分紹介
