Monitoring of range expansion of an alien grasshopper, Atractomorpha sinensis and estimation of its impact on native congener

2017 Fiscal Year Final Research Report

• Project/Area Number: 26430209
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Conservation of biological resources
• Research Institution: Osaka Museum of Natural History
• Principal Investigator: Matsumoto Rikio 大阪市立自然史博物館, 学芸課, 主任学芸員 (90321918)
• Research Collaborator: Kawai Masato 日本直翅類学会 ; Tominaga Osamu 日本直翅類学会 ; Ichikawa Akihiko 日本直翅類学会
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 分布拡大 / 外来種 / 相互作用 / 市民調査

Outline of Final Research Achievements

Through the survey with citizens, it turned to be clear that the distribution range of an alien grasshopper, Atractomorpha sinensis has been expanding from Kobe and Osaka area to adjacent regions.
By comparing DNA sequences of specimens introduced to Osaka with those of China, Taiwan and South west islands of Japan（native）and Hawaii (introduced), one of the origin of the introduced population in Osaka is presumed to be originated in China. No hybrid of this species and native congener, A. lata, however, a reproductive interference may occur throgh the gurding behaviour of males on the female.

Free Research Field

昆虫分類・系統学