Behavior of a newly introduced dandelion Taraxacum section Ruderalia population and discovery of introduced diploid plants
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- Ogawa Kiyoshi
- Faculty of Education, Tokyo Gakugei University
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- Yamaya Yoshiko
- Faculty of Education, Tokyo Gakugei University
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- Ishikura Wataru
- Faculty of Education, Tokyo Gakugei University
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- Shibaike Hiroyuki
- Biodiversity Division, National Institute for Agro-Environmental Sciences
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- Hoya Akihiko
- Biodiversity Division, National Institute for Agro-Environmental Sciences
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- Oishi Megumi
- Faculty of Sciences, Toho University
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- Morita Tatsuyoshi
- Faculty of Education, Niigata University
Bibliographic Information
- Other Title
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- 新規に移入されたセイヨウタンポポ個体群の動態と2倍体個体の検出
- シンキ ニ イニュウ サレタ セイヨウタンポポ コタイグン ノ ドウタイ ト 2バイタイ コタイ ノ ケンシュツ
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Description
A population of an artificially introduced dandelion species was investigated to follow the early settlement behavior of an introduced species in Japan. At a developed field in the Tokyo Bay Area, many seeds of Taraxacum officinale Weber were sown on artificial soil in 1998, creating a population with density as high as 1×10^2 plants/m^2. In 2006, the population was lower in density. Most of the seedlings appeared in early summer and had died by autumn. A few of the seedlings appeared in autumn and had a relatively high survival rate. The population had a high percentage of pure individuals of the introduced dandelion in 2006, although other populations growing in some major cities in central Japan have high percentages of hybrids between the introduced and a native dandelion species. This is the first documentation of diploid individuals of introduced dandelions growing in Japan; these diploids represented about 15% of the individuals of the population.
Journal
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- Japanese Journal of Conservation Ecology
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Japanese Journal of Conservation Ecology 16 (1), 33-44, 2011
The Ecological Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680183264896
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- NII Article ID
- 110008661336
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- NII Book ID
- AA11857952
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- ISSN
- 24241431
- 13424327
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- NDL BIB ID
- 11145282
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Allowed