Here is a list of sources you may be interested in:

[PDF]Invasive American bullfrogs and African Clawed Frogs in South America

zoolstud.sinica.edu.tw/Journals/56/56-28.pdf


by FG Barbosa - ‎2017

African Clawed Frog (The Common Platanna): Texas Invasive Species ...

www.tsusinvasives.org/home/database/xenopus-laevis



Invasive Species Council Priority Species: Invasive Frogs

https://invasivespecies.wa.gov/priorities/invasive_frogs.shtml



Introduced Species Summary Project - Xenopus laevis

www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/inv.../xenopus_laevis.htm

Just click on the blue links above!