The Ryukyu Kajika frog, Japanese Buerger's frog, or Japanese stream treefrog (Buergeria japonica) is a species of frog in the family Rhacophoridae. It is found in the Ryukyu Islands (Japan) and in Taiwan. Habitat Buergeria japonica is a common species that occurs in a wide variety of habitats (rivers, intermittent rivers, freshwater marshes, intermittent freshwater marshes, freshwater springs, geothermal wetlands, irrigated land, and canals and ditches). It is locally threatened by habitat loss. Description Buergeria japonica is a small to medium-sized frog, about snout-vent length in males. Reproduction Buergeria japonica normally breed in slow-moving water in ditches and small streams. However, some Taiwanese populations also breed in geothermal hot springs. In this habitat, frogs can breed throughout the year. Another advantage is that high temperature facilitates growth; furthermore, competition may be reduced in this unusual habitat. Tadpoles can tolerate water temperatures up to about , however, few tadpoles enter areas of pools where temperature exceeds . References Buergeria Amphibians of Japan Amphibians of Taiwan Amphibians described in 1861 Taxa named by Edward Hallowell (herpetologist) Taxonomy articles created by Polbot