Clarifying the process of northward expansion for Fagus crenata Blume forests at their natural northern range front

阐明水青冈森林在其自然北部山脉前沿向北扩张的过程

• 批准号: 21580189
• 负责人: MATSUI Tetsuya
• 金额: $ 3.16万
• 依托单位: Forestry and Forest Products Research Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21580189/
• 关键词: ブナ; 北限; 孤立林; 鳥散布; 空中写真; 遺伝的多様度; 樹齢; 遺伝的類縁関係; 遺伝的浮動; 種子散布距離; ヤマガラ; 遺伝的類緑関係

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.

为了弄清孤立的天然山毛榉(Fagus Crenata Blume)森林在其活动范围最北边界的准确位置和分布，进行了航空摄影和地面实况调查。调查发现，山毛榉隔离林的数量至少有9个，最大相距4公里。这些与世隔绝的森林被认为可能是由鸟类散布的山毛榉种子建立的。遗传分析表明，山毛榉孤立林具有较高的分化程度和较低的遗传多样性，但树轮分析表明，山毛榉树龄大多在120年以下，表明山毛榉林在偶尔发生林冠干扰事件后，其分布范围正在逐渐扩大。

项目成果

Strong genetic drift and the diversity decline at the northward expanding marginal populations of Fagus crenata

向北扩张的水青冈边缘种群的强烈遗传漂变和多样性下降

• 发表时间: 2012
• 作者: Kitamura K;Matsui T;Kobayashi M;Saitou H;Namikawa K;Tsuda Y
• 通讯作者: Tsuda Y

ブナ最北限地域に点在する隔離小集団の遺伝的浮動

散布在山毛榉最北端地区的孤立小种群的遗传漂变

• 发表时间: 2010
• 作者: 北村系子;松井哲哉;並川寛司;斎藤均;小林誠
• 通讯作者: 小林誠

自然撹乱が北限のブナの分布を広げた

自然干扰扩大了最北端的山毛榉分布

• 发表时间: 2011
• 期刊: 森林総合研究所平成23年版研究成果選集
• 作者: 松井哲哉;倉本惠生;並川寛司;後藤亮太;小林誠
• 通讯作者: 小林誠

Estimation of home range for varied tits in late autumn near the northern range boundary of Siebold's beech in the scope of estimating dispersal distance of beech seeds

山毛榉种子传播距离估算范围内西博尔德山毛榉北部边界附近深秋不同山雀栖息地的估算

• 发表时间: 2010
• 作者: Matsui Tetsuya;Iida Shigeo;Kawahara Ttakayuki;Namikawa Kanji;Hirakawa Hirofumi
• 通讯作者: Hirakawa Hirofumi

ブナ(Fagus crenata)自生北限域における種子散布距離推定のための晩秋期のヤマガラ(Parus varius)の行動圏推定

晚秋山雀的栖息地范围估计，用于估计山毛榉自然范围北限的种子传播距离

• 发表时间: 2011
• 期刊: 日本森林学会誌
• 作者: 松井哲哉;飯田滋生;河原孝行;並川寛司;平川浩文
• 通讯作者: 平川浩文