page_title: Biota of Tokyo Imperial Palace
section_title: Amphibians and reptiles
hierarchical_section_title: Biota of Tokyo Imperial Palace / Fauna / Amphibians and reptiles
caption_attribution_description: North American bullfrog (Rana catesbeiana)
context_page_description: The biota of Tokyo Imperial Palace grounds, especially of the Fukiage Garden, consists of enriched and distinct flora and fauna found in Tokyo, Japan. An untouched, vast open space in the middle of Tokyo hosts diverse species of wildlife which have been catalogued in field research. For comparison, this article also covers biodiversity in other open spaces in the central districts of Tokyo.
context_section_description: In the Palace, bullfrogs have greatly increased in number, with adverse effects on reptiles, amphibians and insects. The affected reptiles include the Chinese pond turtle, Trachemys scripta elegans, Chinese softshell turtle, Takydromus tachydromoides, Japanese rat snake, Japanese striped snake, Hebius vibakari, and various geckos and lizards. The distribution of amphibians is very interesting. Salamander was not found in the Palace. Bufo japonicus formosus Japanese tree frog, bullfrog were found but, Japanese brown frog, Daruma pond frog, Japanese wrinkled frog could not be found. The smaller number of frogs and the disappearance of the three frogs were considered to be due to the extraordinary increase of bullfrogs. Once a species disappears such as by bullfrogs, it is extremely difficult to return to the previous condition because of the closed nature of the Palace.
caption: The bullfrog has had harmful effects on other animals in the Palace
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