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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
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Habitat Differentiation Between Drosera anglica and D. rotundifolia in a Post-Mined Peatland, Northern Japan
| Title: | Habitat Differentiation Between Drosera anglica and D. rotundifolia in a Post-Mined Peatland, Northern Japan |
| Authors: | Hoyo, Yuri Browse this author | | Tsuyuzaki, Shiro Browse this author →KAKEN DB |
| Keywords: | water level | | Sphagnum mat | | seedling establishment | | habitat differentiation |
| Issue Date: | 2014 |
| Publisher: | Springer |
| Journal Title: | Wetlands |
| Volume: | 34 |
| Issue: | 5 |
| Start Page: | 943 |
| End Page: | 953 |
| Publisher DOI: | 10.1007/s13157-014-0555-9 |
| Abstract: | The preservation of endangered species requires clarifying habitat preferences through survival, growth and competitive ability. The determinants of habitat differentiation between the endangered species, Drosera anglica, and a widespread congener, D. rotundifolia, were compared. The effects of water level, Sphagnum mats and overstory vascular plants on Drosera distribution, recruitment and survival were monitored at a previously mined Sphagnum peatland. Seedling transplant experiments were conducted using different water levels. Seed-sowing experiments were conducted using different light intensities in three habitat-types: bare ground, Sphagnum mat and waterlogged surface. Distributions of D. anglica and D. rotundifolia were determined using survival at the seedling stage. D. anglica seedling recruitment and survival occurred more at lower water levels and/or lower plant cover, while D. rotundifolia seedlings established independent of these factors. In the greenhouse the seedlings of both species survived better at lower water levels but grew more slowly. D. anglica seedlings reduced their growth under shade more than D. rotundifolia. D. anglica showed low competitive light and nutrient ability on Sphagnum mats. Therefore, D. anglica was pushed to areas of high water levels where few competitors could establish. The habitat differentiation between D. anglica and D. rotundifolia originated from the interactions with Sphagnum mats. |
| Rights: | Published online: 22 June 2014 : © Society of Wetland Scientist 2014. "The final publication is available at Springer via http://dx.doi.org/10.1007/s13157-014-0555-9" |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/60134 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 露崎 史朗
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