Pelophylax bergeri
System : Freshwater_terrestrial
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Amphibia
Anura
Ranidae
  • 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
Italian Pool Frog (English), Rana di Berger (Italian)
Synonym
Hylarana bergeri ,(Günther in Engelmann, Fritzsche, Günther and Obst, 1986)
Rana bergeri ,Günther in Engelmann, Fritzsche, Günther and Obst, 1986
Similar species
Summary

Principal source:

Compiler:

Review:

Publication date:

Recommended citation: Global Invasive Species Database (2025) Species profile: Pelophylax bergeri. Downloaded from http://iucngisd.org/gisd/species.php?sc=2015 on 28-03-2025.

Countries (or multi-country features) with distribution records for Pelophylax bergeri
ALIEN RANGE
NATIVE RANGE
Informations on Pelophylax bergeri has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Pelophylax bergeri 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 1: LC = 1;
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Management information
Bibliography
3 references found for Pelophylax bergeri

Management information
Dubey, S., Leuenberger, J., & Perrin, N. (2014). Multiple origins of invasive and ‘native’water frogs (Pelophylax spp.) in Switzerland. Biological journal of the Linnean Society, 112(3), 442-449.
General information
Dufresnes C, Di Santo L, Leuenberger J, Schuerch J, Mazepa G, Grandjean N, Canestrelli D, Perrin N, Dubey S (2007) Cryptic invasion of Italian pool frogs (Pelophylax bergeri) across Western Europe unraveled by multilocus phylogeography. Biological invasions 19 (5): 1407-1420.
Dufresnes C, Dubey S (2020) Invasion genomics supports an old hybrid swarm of pool frogs in Western Europe. Biological Invasions 22 (2): 205-210.
Contact
The following 0 contacts offer information an advice on Pelophylax bergeri
MV
Pelophylax bergeri
Italian Pool Frog, Rana di Berger
Date assessed
2021-10-18
Year published
2021
Eicat category
MV (Massive)
Justification for EICAT assessment


Impact through hybridisation between P. bergeri and P. lessonae is massive, hybrids have completely replaced the native P. lessonae (Dubey et al. 2014; Dufresnes et al. 2007, Dufresnes and Dubey 2020). The deep introgression has colapsed the genetic structure of the native Pelophylax populations (Dubey et al. 2014).
Confidence rating
High
Mechanism(s) of maximum impact
Hybridisation
Countries of most severe impact
France; Switzerland
Description of impacts
Hybridisation - genetic introgression between Pelophylax bergeri and the native species P. lessonae and P. esculentus has led to the replacement of most pure native populations.
Assessor
F. André de Villiers
Contributors
Carla Wagener; Mohlamatsane Mokhatla; James Baxter-Gilbert; Corey Thorp; Alexander D. Rebelo; Sarah J. Davies; Nitya Prakash Mohanty; John Measey; Giovanni Vimercati; Sabrina Kumschick; Khensani Nkuna
Reviewers
EICAT authority
Recommended citation
F. André de Villiers (2025). Pelophylax bergeri. IUCN Environmental Impact Classification for Alien Taxa (EICAT).