| General Information: |
| Title: | A dataset for vascular plant diversity monitoring for the natural World Heritage Site on Amami-Oshima Island, Tokunoshima Island, and the northern Okinawa Island |
| Identifier: | ERDP-2022-03.1.6 |
| Abstract: |
This data paper presents the vascular plant biodiversity sampled from four plots on Amami-Oshima Island, three plots on Tokunoshima Island, and one plot on Okinawa Island within the naturalWorld Heritage site, and an additional three plots in southern Kyushu using the standardized belt-transect survey method during July 2012 to October 2020. The dataset includes 99 families, 215 genera, and 380 species of vascular plants, and provides species occurrence among 10 subplots for all vascular plants, girth at breast height (GBH) and height of all trees and climbers with GBH ≥ 3.2 cm or height ≥ 4 m in each 5 × 100 m plot. This dataset serves as baseline data for subsequent plant diversity monitoring of the natural World Heritage site. The Darwin Core Archive is deposited in the Global Biodiversity Information Facility (GBIF) through the Japan Initiative for Biodiversity Information, and are thus accessible through the GBIF portal under the Creative Commons Attribution 4.0 International license. The detailed Metadata for this abstract published in the Data Paper section of the journal is available in MetaCat in JaLTER at http://db.cger.nies.go.jp/JaLTER/metacat/metacat/ERDP-2022-03.1/jalter-en.
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Involved Parties
| Data Set Owners: |
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Individual: | Yayoi Takeuchi |
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Organization: | Biodiversity Division, 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: | Yayoi Takeuchi |
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Organization: | Biodiversity Division, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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| Associated Parties: |
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Individual: | Hironori Toyama |
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Organization: | Biodiversity Division, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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Email Address:
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Individual: | Kumiko Totsu |
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Organization: | Biodiversity Division, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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Individual: | Shuichiro Tagane |
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Organization: | The Kagoshima University Museum, Kagoshima University |
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Address: |
| 1-21-30 Korimoto, |
| Kagoshima, Kagoshima 890-0065 Japan |
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Individual: | Shin-ichiro Aiba |
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Organization: | Faculty of Environmental Earth Science, Hokkaido University |
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Address: |
| N10 W5 Kita-ku, |
| Sapporo, Hokkaido 060-0810 Japan |
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Individual: | Shin Ugawa |
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Organization: | Faculty of Agriculture, Kagoshima University |
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Address: |
| 1-21-24 Korimoto, |
| Kagoshima, Kagoshima 890-8580 Japan |
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Individual: | Eizi Suzuki |
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Organization: | Research Center for the Pacific Islands, Kagoshima University |
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Address: |
| 1-21-24 Korimoto, |
| Kagoshima, Kagoshima 890-8580 Japan |
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Individual: | Kaito Yamazaki |
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Organization: | Faculty of Agriculture, Kagoshima University |
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Address: |
| 1-21-40 Korimoto, |
| Kagoshima, Kagoshima 890-8580 Japan |
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Individual: | Kengo Fuse |
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Organization: | Kyushu Open University |
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Address: |
| 744 Motooka, Nishi-ku, |
| Fukuoka, Fukuoka 819-0395 Japan |
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Individual: | Atsushi Takashima |
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Organization: | University of the Ryukyus |
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Address: |
| 685 Yona, Kunigami-son, |
| Kunigami-gun, Okinawa 905-1427 Japan |
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Individual: | Nariko Toyama |
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Organization: | Biodiversity Division, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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Individual: | Taku Kadoya |
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Organization: | Biodiversity Division, National Institute for Environmental Studies |
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Address: |
| 16-2 Onogawa, |
| Tsukuba, Ibaraki 305-8506 Japan |
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Data Set Characteristics
| Geographic Region: |
| Geographic Description: | Kagoshima and Okinawa prefectures, Japan |
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Bounding Coordinates:
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| West: | 128.0 degrees
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| East: | 132.0 degrees
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| North: | 33.0 degrees
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| South: | 26.0 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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Study sites
All surveys were conducted in evergreen broadleaf forests at four, three, one, and three locations on Amami-Oshima Island, Tokunoshima Island, Okinawa Island, and southern Kyushu with a nearby island (Shimokoshiki), respectively (Fig. 1). The study sites on Amami-Oshima Island, Tokunoshima Island, and Okinawa Island are protected as the Amamigunto National Park and Yambaru National Park. The surveyed plots were established either in or beside the “Specific Plant Community” by Biodiversity Center
of Japan (1978, 1988, 2000), and permanent forest plots by Aiba et al. (2019, 2021); Ishihara et al. (2011); Ugawa (2020) to complement the quantity of each species and the composition of herbaceous species as mentioned in Introduction. The sites in southern Kyushu were established in the protected area of National/Prefectural Park or Prefectural Nature Conservation Area except for Plot H.
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| Step 2: |
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Description:
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Field method
We placed a rectangular plot (5 × 100 m) and divided it into 10 subplots (5 × 10 m) in which all vascular plant species were listed and all stems of a certain height and GBH were recorded. The plot was marked with GPS coordinates noting the beginning and ending points using GPSMAP 64SC (Garmin Ltd.). Stems with GBH ≥3.2 cm in Plots A–G and I and stem heights >4 m in Plots H, J, and K were recorded. Tree height was assessed by visual estimation, and girth at breast height (GBH) was measured using a measuring tape. To calibrate the visual estimates of tree height, we sometimes used a 15 m carbon pole (CAH04-015S, Taketani Trading Co., Ltd) to round to the nearest 0.5 meter. As two individuals of Quercus glauca Thun. var. amamiana (Hatus.) Hatus. ex H.Ohba in Plot F had many basal shoots (53 and 24, respectively), we measured allshoots with GBH ≥10 cm and randomly selected five shoots with GBH ≥3.2 cm but <10 cm, thus the data contains the occurrence of all shoots with GBH ≥3.2 cm, and GBH and height of all shoots with GBH ≥10 cm and of five shoots with GBH ≥3.2 cm but <10 cm.
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| Step 3: |
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Description:
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Taxonomy and systematics
Species identification was performed in the field and recorded with Japanese common names. The plant nomenclature followed the YList (Yonekura & Kajita 2003–) and spelling of scientific names were checked against the Global Biodiversity Information
Facility (GBIF) Backbone Taxonomy (GBIF Secretariat 2021). When we found an inconsistency of taxonomic treatment between two databases, we followed YList (Yonekura & Kajita 2003–). Most plants were identified to species-level including subspecies and varieties, but seven taxa, Carex sp. 1 & 2, Calanthe sp. 1, Trichosanthes sp. 1, Goodyera sp. 1, Malaxis sp. 1 Lycianthes cf. biflora (Lour.) Bitter and Asarum cf. simile Hatus., were unidentified due to its lacking reproductive organs which are important for their classification. The species identification level and the doubts of the identification were mentioned in “taxonRank” and “identificationQualifier”, respectively (see 2.8.3 | Variable definitions).
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Data Set Usage Rights
| This dataset is provided under a Creative Commons Attribution 4.0 International License (CC BY 4.0 international; https://creativecommons.org/licenses/by/4.0/legalcode, accessed on 1st June 2021). |
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