Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama
Earthworms contribute to the sustainability of food webs in the semi-natural grasslands of levees at paddy margins, which are typical components of satoyama, the traditional agricultural landscapes of Japan. Thus far, few studies have focused on earthworm fauna of paddy levees in satoyama. In this s...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2020-09-01
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| Series: | Biodiversity Data Journal |
| Subjects: | |
| Online Access: | https://bdj.pensoft.net/article/56531/download/pdf/ |
| _version_ | 1818566865575739392 |
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| author | Keiko Kishimoto-Yamada Yukio Minamiya |
| author_facet | Keiko Kishimoto-Yamada Yukio Minamiya |
| author_sort | Keiko Kishimoto-Yamada |
| collection | DOAJ |
| description | Earthworms contribute to the sustainability of food webs in the semi-natural grasslands of levees at paddy margins, which are typical components of satoyama, the traditional agricultural landscapes of Japan. Thus far, few studies have focused on earthworm fauna of paddy levees in satoyama. In this study, we investigated earthworm fauna and regional and monthly changes in earthworm density. We found at least 11 species of earthworms living within levees on Sado Island, central Japan. Two endogeic species, Amynthas corticis (Megascolecidae) and Eisenia japonica (Lumbricidae), were dominant in terms of number of adult individuals; these two species appeared in all study regions. We also estimated an average of ~57.4 individuals/m2 for all stages of earthworms in levees, suggesting that rice paddy levees have relatively-high earthworm density. However, such tendencies differed depending on the region. In addition, monthly changes in density were observed in the topsoil of the levees. Our results imply that differences in earthworm assemblages amongst regions and months may influence the availability of food resources for various animals inhabiting satoyama. |
| first_indexed | 2024-12-14T02:59:04Z |
| format | Article |
| id | doaj.art-255415b3880a4831bb0b36a5af4794c8 |
| institution | Directory Open Access Journal |
| issn | 1314-2828 |
| language | English |
| last_indexed | 2024-12-14T02:59:04Z |
| publishDate | 2020-09-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Biodiversity Data Journal |
| spelling | doaj.art-255415b3880a4831bb0b36a5af4794c82022-12-21T23:19:33ZengPensoft PublishersBiodiversity Data Journal1314-28282020-09-01811210.3897/BDJ.8.e5653156531Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyamaKeiko Kishimoto-Yamada0Yukio Minamiya1Sado Island Center for Ecological Sustainability, Niigata UniversityTochigi Prefectural MuseumEarthworms contribute to the sustainability of food webs in the semi-natural grasslands of levees at paddy margins, which are typical components of satoyama, the traditional agricultural landscapes of Japan. Thus far, few studies have focused on earthworm fauna of paddy levees in satoyama. In this study, we investigated earthworm fauna and regional and monthly changes in earthworm density. We found at least 11 species of earthworms living within levees on Sado Island, central Japan. Two endogeic species, Amynthas corticis (Megascolecidae) and Eisenia japonica (Lumbricidae), were dominant in terms of number of adult individuals; these two species appeared in all study regions. We also estimated an average of ~57.4 individuals/m2 for all stages of earthworms in levees, suggesting that rice paddy levees have relatively-high earthworm density. However, such tendencies differed depending on the region. In addition, monthly changes in density were observed in the topsoil of the levees. Our results imply that differences in earthworm assemblages amongst regions and months may influence the availability of food resources for various animals inhabiting satoyama.https://bdj.pensoft.net/article/56531/download/pdf/agricultural landscapesHaplotaxidaLumbricidae |
| spellingShingle | Keiko Kishimoto-Yamada Yukio Minamiya Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama Biodiversity Data Journal agricultural landscapes Haplotaxida Lumbricidae |
| title | Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama |
| title_full | Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama |
| title_fullStr | Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama |
| title_full_unstemmed | Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama |
| title_short | Earthworm species and density in semi-natural grasslands on rice paddy levees in Japanese satoyama |
| title_sort | earthworm species and density in semi natural grasslands on rice paddy levees in japanese satoyama |
| topic | agricultural landscapes Haplotaxida Lumbricidae |
| url | https://bdj.pensoft.net/article/56531/download/pdf/ |
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