Alcalus mariae

Appearance

The type series of Alcalus mariae consists of two males measuring 32 and 33 mm (1.3 and 1.3 in) in snout–vent length. Skin of all dorsal surfaces is coarsely shagreen.

Range and habitat

It is endemic to the Palawan Island, the Philippines, and only known from its type locality, Mount Balabag, in the Mantalingajan mountain range.

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

Breeding

Calling males and egg sites define most frog field work. A species known from one ridge is as narrow as it sounds.

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

In crisis

Habitat loss is the most important threat to this species, although the area of type locality is generally well protected. The frog is the most evolutionarily distinct and globally endangered species in the Philippines, as listed by the Zoological Society of London in their EDGE species analysis, where it ranked 75th out of the thousands of amphibian species known to humanity.

Chytrid fungus, collection, and wet-forest loss are the usual pressures on frogs with a high threat category.

Alcalus mariae 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 Alcalus mariae, Wikidata item Q28053379. 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.