Institute for Agro-Environmental Sciences, NARO

Invasive Alien Species Risk Assessment Unit

In recent years, alien species which were introduced from abroad and were mixed in imported agricultural products and food raw materials pose a threat to biodiversity in Japan. It is an urgent issue to properly manage alien species. To promote the prevention and extermination of invasive species that inhabit and have already damaged biodiversity is also a particular concern. The Invasive Alien Species Risk Assessment Unit works to develop an impact assessment and a countermeasure technology for the following three aspects:
1. Development of monitoring techniques and mitigation measures of invasive alien species, Golden mussel (Limnoperna fortune)
2. Development of the benefit and risk assessment methods for the proper use of alien pasture plants
3. Biodiversity impact assessment of genetically modified crops and development of methods for the coexistence with non-modified crops


Unit Leader

Research Topic: Molecular genetic analysis of natural hybridization in plants.

Unit Members

Research Topics
Kenji ITO Principal Researcher Control of biological invasion in agricultural water system
Chika EGAWA Researcher Cost-benefit analysis for alien pasture plants aiming for the proper use
Koji YASUDA Re-employed Staff Insect Taxonomy

Research Publications

  • Shibaike H (2016) Inferences from the scientific name, Taraxacum officinale agg., about their introduction, establishment, and hybridization. Weed and Vegetation Management 8: 64-72 (in Japanese)
  • Yoshimura Y, Kaga A, Matsuo K 2016 The biology of Glycine soja Sieb. & Zucc. for biodiversity risk assessment of genetically modified soybean in Japan. Bull Natl Inst Agro-Environ Sci 36: 47-69 (in Japanese)
  • Egawa C, Nishimura A, Koyama A, Tsuyuzaki S (2017) Invasion of alien plant species in the post-mined peatland, Sarobetsu Mire, northern Hokkaido. Japanese Journal of Conservation Ecology (in press)
  • Ito K (2015) Colonization and Spread of Limnoperna fortunei in Japan. In: D Boltovskoy (ed) Limnoperna fortunei. Springer International Publishing pp. 321-332.
  • Yoshimura Y (2015) Re-examination of occurrence of C4 plants in Japan. Jpn Crop Sci 84: 386-406 (in Japanese)