IUCN SSC Mid-Atlantic Island Invertebrates Specialist Group

Species

BackActinella fausta (Lowe, 1831)

Actinella fausta (Lowe, 1831)

  • Kingdom: Animalia
  • Phylum:
  • Class: Mollusca
  • Order: Gastropoda
  • Family: Hygromiidae
LC Least Concern
IUCN Red List Status:

Countries of Occurrence:
Portugal - Madeira

Archipelago(s):
Madeira

Assessor/s:
Seddon, M.

Reviewer/s:
Groh, K., Neubert, E. & Cuttelod, A.

Contributor/s:

Facilitators / Compilers/s:


Assessment Rationale:

Actinella fausta is very rare over all of its range on Madeira. It is mainly found in the coastal zone in the north with the addition of few valleys at intermediate altitude in central Madeira. However the number of sites and the lack of major threats suggests that this species is Least Concern (LC). This is downgraded from the last listing as Near Threatened due to the change in categories and criteria, as well as better knowledge resulting from compilation of all available data.

Geographic Range:

This species is an endemic to the main island of Madeira, where it is widespread living in the valleys on the northern part of the island.  Most of the sites are close to the coast, with some sites further inland up the valleys (Seddon 2008).

Regions:
Portugal - Madeira
Extent of Occurrence (EOO):
(km2)
Area of Occupancy (AOO):
(km2)
Elevation Lower Limit:
(m)
Elevation Upper Limit:
(m)
Biogeographic Realms:
Palearctic
Presence:
Extant
Origin:
Endemic Madeira
Seasonality:
Resident

Population:

This species is usually rare in samples, and so is apparently living in low density (Seddon 2008).

Habitat and Ecology

This species is found in coastal scrub, vegetated gullies and wooded valleys.

Major Threat(s):

This species is mainly found in undisturbed habitats on the north side of the island, with main threats from road improvement schemes and other activities that reduce the area of the occupied sites.

Conservation Actions

No conservation actions are known for this species, however no specific actions are required.