Hynobius arisanensis

Appearance

Adult H. Arisanensis measure 5.0–6.5 cm (2.0–2.6 in) in snout–vent length. It is blackish-brown to reddish-brown dorsally and somewhat lighter brown or grey-brown ventrally.

Range and habitat

A study of H. Arisanensis in the Alishan Range found the adults had home ranges of up to 500 m2 (mean 65 m2). It is found in coniferous and broadleaf woodland near streams where it occurs at altitudes greater than 1,800 m (5,900 ft) and is considered rare. Hynobius arisanensis, the Alishan salamander, is a salamander in the family Hynobiidae endemic to Taiwan.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Breeding

Salamanders hide under logs, in seeps, or in caves. They do not commute across a dry valley.

Eggs and damp skin make amphibians quick to vanish from a drained wetland or a forest stripped of litter.

In crisis

Salamanders disappear when seeps are capped, caves are disturbed, or a pathogen moves through a mountain range.

Hynobius arisanensis is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Hynobius arisanensis, Wikidata item Q956052. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.