''Rana amurensis'' (Khabarovsk frog, Siberian wood frog, Heilongjiang brown frog or Amur brown frog) is a species of

true frog True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North A ...

found in

northern Asia North Asia or Northern Asia, also referred to as Siberia, is the northern region of Asia, which is defined in geographical terms and is coextensive with the Asian part of Russia, and consists of three Russian regions east of the Ural Mountains: ...

. It ranges across western

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

, as well as northeastern

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, northeastern

Mongolia Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, ...

, and on the northern

Korean Peninsula Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...

and on

Sakhalin Sakhalin ( rus, Сахали́н, r=Sakhalín, p=səxɐˈlʲin; ja, 樺太 ''Karafuto''; zh, c=, p=Kùyèdǎo, s=库页岛, t=庫頁島; Manchu: ᠰᠠᡥᠠᠯᡳᠶᠠᠨ, ''Sahaliyan''; Orok: Бугата на̄, ''Bugata nā''; Nivkh: ...

. ''

Rana coreana The Korean brown frog (''Rana coreana'') is a species of frog in the genus ''Rana''. It is native to the Korean Peninsula and Shandong, China. Taxonomy and systematics The Korean brown frog has earlier mostly been considered as subspecies of '' ...

'' was previously included in this species as a subspecies. Found at latitudes up to 71° N, it is the northernmost wild amphibian species. According to the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

, the chief threat to the species is habitat loss, as it is only mildly tolerant of disturbance. In addition, it has become a frequent subject of hunting in

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

since the 1990s. It is not considered threatened on a global scale though. Favoring lowlands, it is seldom encountered at elevations of more than 600 m. A habitat generalist, ''Rana amurensis'' favors open ground, but is also found in both deciduous and coniferous forests. In the winter, it hibernates on pond bottoms. Adults are light brown with smooth skin and irregular dark brown and yellow stripes, with a body length of . ''Rana amurensis'' favors

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

s, and consumes of food per day. The average lifespan is three years. Their breeding season is very early, starting in late February in Korea. An egg sac contains 30-60

eggs Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...

. Rana amurensis 5.jpg, ''Rana amurensis'' in water File:Rana amurensis 2.jpg, Dorsal view Rana amurensis 4.jpg, View of underside

References

External links

* * {{Taxonbar, from=Q59239 Rana (genus) Amphibians described in 1886 Amphibians of China Amphibians of Korea Amphibians of Mongolia Amphibians of Russia Fauna of Siberia