Fejervarya kawamurai
System : Freshwater_terrestrial
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Amphibia
Anura
Dicroglossidae
  • Not Evaluated
    NE
  • No Alien Population
    NA
  • Data Deficient
    DD
  • Minimal Concern
    MC
  • Minor
    MN
  • Moderate
    MO
  • Major
    MR
  • Massive
    MV
  • General
  • Distribution
  • Impact
  • Management
  • Bibliography
  • Contact
Common name
Japanese Rice frog (English), Marsh frog (English)
Synonym
Similar species
Summary
The Japanese rice frog, Fejervarya kawamurai has recently been expanding beyond its historical range in its native Japan. There are concerns on this voracious predators impact on anuran populations in its invaded areas. it has been observed juvenile Fejervarya kawamurai predate on Hyla japonica juveniles and froglets in a rice field in Kobe City, Hyogo Prefecture, Japan.

Principal source:

Compiler: Shyama Pagad (IUCN SSC Invasive Species Specialist Group)

Review:

Publication date:

Recommended citation: Global Invasive Species Database (2025) Species profile: Fejervarya kawamurai. Downloaded from http://iucngisd.org/gisd/speciesname/Fejervarya+kawamurai on 05-02-2025.

Countries (or multi-country features) with distribution records for Fejervarya kawamurai
ALIEN RANGE
NATIVE RANGE
  • japan
Informations on Fejervarya kawamurai has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Fejervarya kawamurai in information
Status
Invasiveness
Arrival date
Occurrence
Source
Introduction
Species notes for this location
Location note
Management notes for this location
Impact
Mechanism:
Outcome:
Ecosystem services:
Impact information
Red List assessed species 0:
Locations
JAPAN
Mechanism
[1] Predation
Outcomes
[1] Environmental Species - Population
  • [1] Population size decline
Management information
Contact
The following 0 contacts offer information an advice on Fejervarya kawamurai
MN
Fejervarya kawamurai
Japanese Rice frog, Marsh frog
Date assessed
2020-09-01
Year published
2021
Eicat category
MN (Minor)
Justification for EICAT assessment


Although F. kawamurai largely preys on arthropods, it is uncertain whether the prey is of native or non-native origin (Takeuchi et al. 2019). There also has been no indication of population decline of any species consumed by F. kawamurai.
Confidence rating
Low
Mechanism(s) of maximum impact
Predation
Countries of most severe impact
Japan
Description of impacts
Predation - stomach contant showed that the Japanese Rice Frog (F. kawamurai) preys primarly on arthropods, but also other taxa. However, prey was not identified to the species level.
Assessor
Alexander D. Rebelo; James Baxter-Gilbert
Contributors
Carla Wagener; John Measey; Mohlamatsane Mokhatla; Corey Thorp; Giovanni Vimercati; Sarah J. Davies; F. André de Villiers; Nitya Prakash Mohanty; Sabrina Kumschick; Khensani Nkuna
Reviewers
EICAT authority
Recommended citation
Alexander D. Rebelo, James Baxter-Gilbert (2025). Fejervarya kawamurai. IUCN Environmental Impact Classification for Alien Taxa (EICAT).