| General Information: |
| Title: | Aquatic vascular plants in Japanese lakes |
| Identifier: | ERDP-2014-01.1.3 |
| Abstract: |
This data paper describes the native vascular aquatic plant floras of 362 Japanese lakes recorded from 1886–2014. The data were compiled from 407 literature sources, most of which were written in Japanese and published in local journals or individual reports rather than in major scientific journals. The literature was searched using web-based services (i.e., Google Scholar, http://scholar.google.com/; CiNii, http://ci.nii.ac.jp/en; JDreamII, http://pr.jst.go.jp/jdream2/; and ISI, http://apps.webofknowledge.com) and by private communication with experts or local governments. Scientific names were consolidated under currently-accepted nomenclature. Four datasets, FloraDB, LakeDB, SpeciesDB, and LiteratureDB, were created to include records of the flora of each lake in each year, the names and locations of the lakes, the scientific names and synonyms of the aquatic vascular plants, and a literature list, respectively. These data can be used to study long-term changes in the species composition and/or richness of aquatic plants in Japanese lakes.
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| Keywords: |
- biodiversity
- conservation
- floating-leaved plant
- free-floating plant
- freshwater
- long-term monitoring
- macrophytes
- species diversity
- submerged plant
- taxon richness
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Involved Parties
| Data Set Owners: |
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Individual: | Jun Nishihiro |
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Organization: | Faculty of Sciences, Toho University |
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Address: |
| 2-2-1 Miyama, |
| Funabashi, Chiba 274-8510 Japan |
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Phone:
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Phone:
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Email Address:
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Individual: | Munemitsu Akasaka |
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Organization: | Faculty of Agriculture, Tokyo University of Agricultural and Technology |
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Address: |
| 3-5-8 Saiwaicho, |
| Fuchu, Tokyo 183-8509 Japan |
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Individual: | Mifuyu Ogawa |
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Organization: | Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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Individual: | Noriko Takamura |
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Organization: | Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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| Data Set Contacts: |
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Individual: | Jun Nishihiro |
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Organization: | Faculty of Sciences, Toho University |
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Address: |
| 2-2-1 Miyama, |
| Funabashi, Chiba 274-8510 Japan |
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Email Address:
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Data Set Characteristics
| Geographic Region: |
| Geographic Description: | Japan |
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Bounding Coordinates:
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| West: | 129.8322 degrees
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| East: | 145.75 degrees
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| North: | 25.855 degrees
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| South: | 45.4317 degrees
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Sampling, Processing and Quality Control Methods
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Step by Step Procedures
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| Step 1: |
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Description:
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Literature collection
We collected literature that included lists of the aquatic vascular plants of the 929 major Japanese lakes (definition of ‘aquatic plant’ given in B. Taxonomic screening) listed in Tanaka (2004). As a first step, we searched the internet for literature using Google Scholar (http://scholar.google.com/), CiNii (http://ci.nii.ac.jp/en), JDreamII (http://pr.jst.go.jp/jdream2/), and ISI (http://apps.webofknowledge.com) with the key words ‘plant(s), vegetation(s), or macrophyte(s)’ and the name of each lake. The searches were conducted from April, 2011, to 24 February, 2013 and yielded a total of 816 records. In the next step, we asked local governments, prefectural research centers, environmental consulting companies, professional researchers, and expert amateurs about literature sources. Bibliographical data for the collected literature was verified and papers containing the data on aquatic vascular plant floras were compiled in LiteratureDB. The lakes for which flora records could be obtained are listed with their location data in LakeDB. The location (latitude and longitude) of the center of each lake was determined using a web-based map ( http://watchizu.gsi.go.jp/).
The literature data is not only the basis of the flora data but also in itself provides useful data for understanding temporal changes in the numbers of lake flora surveys. Several peaks were observed, reflecting the implementation of the National Survey on the Natural Environment by the Japanese Ministry of Environment in 1979, 1985, and 1991. During this century, however, there have been no such comprehensive surveys in Japan.
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| Step 2: |
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Description:
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Taxonomic screening
The definition of the term ‘aquatic plants’ differed among literature sources, i.e., some sources included emergent plants, while others did not. Here, we defined aquatic plants as those described in Kadono (1994) or Ohba and Miyata (2007) and are submerged, floating-leaved, or free-floating life forms. Exotic plants were not included. The judgment of what constituted a native or exotic plant was also based on these two books.
Synonymous names that were used in the cited literature were consolidated based on the Flora of Japan (Iwatsuki et al. 1993, 1995ab, 1999, 2001, 2006) and Kadono (1994), and the currently-accepted name was used. The names and synonyms of aquatic plants are listed in SpeciesDB.
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| Step 3: |
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Description:
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Data verification
Data on lake names, recorded plant names, survey years, and original literature were compiled into FloraDB. All of the datasets (LiteratureDB, LakeDB, SpeciesDB, and FloraDB) were manually digitized and checked for typographical errors.
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Data Set Usage Rights
| 1) Acceptable use. Use of the data set will be restricted to academic, research, educational, government, biodiversity conservation, or other not-for-profit professional purposes.
2) Citation. Data users should properly cite this data paper in any publications or in the metadata of any derived data products that were produced using the data set. As the metadata and the data set can be updated at any time, the date of update should be shown in the bibliography.
3) Collaboration. Data users are strongly encouraged to consider consultation, collaboration, and/or co-authorship with the authors. |
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