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Distribution records and endemism of Japanese Collembola

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posted on 2025-01-23, 23:57 authored by Yuri KATSUMURA, Taizo NAKAMORITaizo NAKAMORI, Kei ICHISAWA

  To document the distribution records of Collembola in Japan, we referred to the Catalogue of the Insects of Japan (Editorial Committee of Catalogue of the Insects of Japan, 2020. Touka Shobo, Fukuoka) as well as the Collembola catalogues of neighboring regions: Korea (Park and Lee, 2014. National List of Species of Korea: Collembola, Diplura, Protura. National Institute of Biological Resources, Incheon), China (Zhao et al., 1997. Publication of the Itako Hydrobiological Station, 9: 15–40), and Taiwan (Cheng et al., 2022. ZooKeys, 1123: 123–146). Species listed in the Catalogue of the Insects of Japan without distribution records outside Japan, and also not recorded in the catalogues of Korea, China, or Taiwan, were classified as "tentative endemic species." All other species were classified as "tentative non-endemic species." For species with no distribution records, those with type localities in Japan were treated as "tentative endemic species."

Subsequently, the distribution of the identified "tentative endemic species" was examined using the Global Biodiversity Information Facility (GBIF; GBIF.org, 2023. https://www.gbif.org; accessed May 31–July 8, 2022). Species without occurrence data from outside Japan were designated as "endemic species," while those with such data were classified as "non-endemic species." The numbers and proportions of endemic species were then calculated. The analysis focused on species-level data, treating a single species as one unit regardless of whether one or multiple subspecies were recorded.

Species with uncertain distribution in Japan, such as those marked with a "?" in the Catalogue of the Insects of Japan or annotated as "unidentifiable," were excluded from the analysis. However, species with "cf." in their names, indicating uncertainty in species identification, were not excluded.

History

Corresponding author email address

nakamori-taizo-gc@ynu.ac.jp

Title (in Japanese)

日本産トビムシ類の分布記録および固有性

Description (in Japanese)

日本産トビムシの分布記録として,日本昆虫目録(日本昆虫目録編集委員会,2020.櫂歌書房,福岡市)に加え日本近隣の韓国(Park and Lee, 2014. National List of Species of Korea: Collembola, Diplura, Protura. National Institute of Biological Resources, Incheon),中国(Zhao et al., 1997. Publication of the Itako Hydrobiological Station, 9: 15–40),および台湾(Cheng et al., 2022. ZooKeys, 1123: 123–146)のトビムシ目録を参照した.日本昆虫目録において海外の分布の記載がなく,かつ,韓国,中国,および台湾のトビムシ目録のいずれにも記録のない種を「作業固有種」,それら以外の種を「作業非固有種」とした.分布の記載がなかった種についてはタイプ産地が日本のものを「作業固有種」として扱った.次に,得られた「作業固有種」の分布地をる地球規模生物多様性情報 機構(the Global Biodiversity Information Facility,GBIF; GBIF.org, 2023. https://www.gbif.org; 2022 年5 月31 日–7 月8 日閲覧)で検索し,海外にオカレンスデータがなかったものを「固有種」とし,それ以外のものを「非固有種」とし,固有種数と固有種率を示した.なお解析の対象は種レベルとし,1 亜種が記録されている場合も,複数の亜種が記録されている場合も1種として扱った.さらに,日本での分布に疑義がある種,すなわち日本昆虫目録において種名に「?」が付されている,「同定できない」などの記載がされている種については,検証する上で除外した.種名にcf.の記載がある種,すなわち種の確定に疑問が残されている種については除外しなかった.

Manuscript title (in Japanese)

トビムシ目の日本固有種リスト作成の試み

Authors (in Japanese)

勝村悠里,中森泰三,一澤圭

Copyright

© 2025 Yuri Katsumura, Taizo Nakamori, Kei Ichisawa

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