書誌事項
- タイトル別名
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- Population Growth and Migration Rate of Fagus crenata during the Holocene in Southwestern Hokkaido, Japan.
- カンシンセ ニ オケル ブナ ノ コタイグン ゾウカ ト イドウ ソクド ホッカイドウ ナンセイブ ノ レイ
- 北海道南西部の例
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The Holocene population growth and migration rate of Fagus crenataa in southwestern Hokkaido (Yakumo area) was investigated based on pollen analysis. The species invaded a Quercus-dominated forest 3, 400 years BP; subsequently the population grew progressively and was saturated after 1, 700 years. Quercus population decreased rapidly at the initial stage of Fagus crenata invasion, attained stability and then gradually decreased. The intrinsic growth rate (0.0031) of Fagus crenata, fitting the logistic growth model, is in good agreement with the rates known from central and northeastern Honshu. Doubling time is 230 years. The migration rate is extremely low (about 20m/yr) compared with rates in northeastern Honshu, with that of F. sylvatica in Europe, and with that of F. grandifolia in North America. The low migration rate in southwestern Hokkaido implies that the population was established by seed dispersal, whereas the population in northeastern Honshu was established by expansion of extant sparse populations. The long term (1, 700 years) required for forest replacement probably results from strong competition with resistant forest species such as Quecus, etc.
収録刊行物
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- 第四紀研究
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第四紀研究 38 (4), 297-311, 1999
日本第四紀学会
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詳細情報 詳細情報について
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- CRID
- 1390001206496586368
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- NII論文ID
- 10004720821
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- NII書誌ID
- AN0034136X
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- ISSN
- 18818129
- 04182642
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- NDL書誌ID
- 4819010
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可