Nectophryne

... Toads are found in wet places such as forests and thickets on flat land, and do not enter water except during the breeding season, but the Japanese stream toad B. torrenticola , the North American Colorado toad B. alvarius , and the Southeast Asian water toad Pseudobufo subasper live in mountain streams. The Southeast Asian tree toad Pedostibes and the West African tree toad Nectophryne also climb trees. During the breeding season, they travel in large groups from their habitat to spawning ponds, over distances of several hundred meters to several kilometers, and in some parts of Europe road signs are erected to protect the toads from being killed.

*Some of the terminology that mentions "Nectophryne" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…　ヒキガエル類は平地の林ややぶなど湿った場所に多く，繁殖期以外は水に入らないが，日本のナガレヒキガエルB.torrenticola，北アメリカのコロラドヒキガエルB.alvarius，東南アジアのミズヒキガエルPseudobufo subasperなどは山地の渓流にすむ。また東南アジアのキノボリヒキガエル属Pedostibesや西アフリカのアフリカキノボリガエル属Nectophryneなどは木にも登る。　繁殖期には生息地から産卵池まで，数百mから数kmの距離を大群で移動し，ヨーロッパではヒキガエルを輪禍から守る道路標識が立つ地方もある。…

※「Nectophryne」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報