ID 11538
File
Authors
Takehara, Amane Department of Biodiversity, Graduate School of Kyushu University
Tsuji, Yusuke
Tsurusaki, Nobuo Department of Regional Environment, Faculty of Regional Sciences, Tottori University Researchers DB KAKEN
Keywords
chromosomes
distribution
Ibaraki Prefecture
introduced species
Kanagawa prefecture
Pseudogagrella amamiana
Abstract
A population of Pseudogagrella amamiana (Nakatsudi 1942) (Arachnida: Opiliones: Sclerosomatidae) was found from a town park in the suburbs of Yokohama City, Kanagawa Prefecture, Honshu, Japan, in 2017. Furthermore, another population of the species was found from Unomisaki Point, Ishihama Beach, Hitachi City, Ibaraki Prefecture, in 2019. This species has been known from the Ryukyu Islands (in and north of Kumejima Island), and sporadically from Kyushu and westernmost part of Honshu (Yamaguchi Prefecture). It is highly probable that these populations in Yokohama and Unomisaki Point have originated from a few males and females or a gravid female or soil litter containing eggs somehow introduced from the native ranges of the species, because the present localities are more than 700 km apart from the nearest known locality of the species in Yamaguchi Prefecture. The chromosome number of these populations showed 2n = 18, hence it seems that the population came from the native ranges of the species other than Okinawa and Kumejima Islands where it is 2n = 20.
Publisher
日本蜘蛛学会
Content Type
Journal Article
Link
ISSN
00015202
EISSN
18807852
NCID
AN00000074
Journal Title
Acta Arachnologica
Current Journal Title
Acta Arachnologica
Volume
69
Issue
2
Start Page
109
End Page
113
Published Date
2020-12
Publisher-DOI
Text Version
Publisher
Rights
(C)Arachnological Society of Japan. 注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.
Citation
Amane Takehara, Yusuke Tsuji, Tsurusaki Nobuo. Pseudogagrella amamiana (Opiliones: Sclerosomatidae) from Kanto District, Japan, as the first probable cases of domestically introduced species in Japanese harvestmen, Acta Arachnologica, 2020, 69(2), 109-113
Department
Faculty of Agriculture/Graduate School of Agriculture
Language
English