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Bufo japonicus formosus

Basic information
Scientific name Bufo japonicus formosus

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アズマヒキガエル
Major synonym
Common names Japanese common toad
Higher taxon Bufonidae, Anura, Amphibia
Natural range Eastern Japan except Hokkaido.
Habitat Various habitats such as farm area, forest, grassland, urban park, nearby beach, etc.
Invasion information
Range in Japan Introduced to Hakodate (Asahikawa, Muroran, Hakodate), Sadogashima Is. (Niigata Pref.), and Izu Islands (Oshima, Niijima, Miyakejima, and Hachijo Is.). Range in Japan
Origin Unknown.
Date Details unknown. In Izu Islands, this species increase explosively in ca.1980.
Route Unknown.
Impact Predation on native species.
Native organism(s) affected: Terrestrial invertebrates (by predation).
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries None.
Reference Notes
  • Hasegawa (1999) Impacts of the introduced weasel on the insular food webs. pp.129-154. Ota (ed) Tropical Island Herpetofauna: Origin, Current Diversity, and Conservation. Elsevier.
  • Sengoku et al. (eds) (1996) Encyclopedia of Animals in Japan 5, Amphibians, Reptiles, Chondrichthyes. Heibonsha. (in Jpn)
  • Maeda & Matsui (1999) Frogs and Toads of Japan. Bun-ichi Sogo Shuppan. (in Jpn, Eng abstract)
  • Toda & Yoshida (2005) Issues and perspectives regarding invasive alien species of amphibians and reptiles in Japan. Bull. Herpetol. Soc. Jpn. 2005(2):139-149
  • Tokuda (2011) Compact Picture Guide to Hokkaido Reptiles & Amphibians. Hokkaidoshinbunsha, Sapporo (in Jpn)
  • etc.