Species

BackCaseolus setulosus (R.T. Lowe, 1831)

Caseolus setulosus (R.T. 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.B.

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

Contributor/s:

Facilitators / Compilers/s:


Assessment Rationale:

This taxon is restricted to the Madeiran islands where it is found on Porto Santo. It is often abundant at sites. The present population abundance, number of sites and presence in degraded habitat, suggests that not highly threatened as it is fairly widespread at 11 sites on the island. These mainland populations are susceptible, given the multiple threats causing habitat degradation and impact of non-native species. However, the species is currently viewed as Least Concern, based on current habitat and threats, but could move to a more threatened category should habitat degradation accelerate.

Geographic Range:

This species is endemic to the Madeiran islands; it is only known living on Porto Santo, although the status is uncertain, as Cameron et al. (2006) considered it conspecific with C. punctulatus

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:

The taxon is common in suitable habitats.

Habitat and Ecology

The taxon is found in largely sandy, bare areas with some grasses and low bushes.

Major Threat(s):

These mainland populations are susceptible, given the multiple threats causing habitat degradation and impact of non-native species near coasts in grassland areas and close to tourist developments.

Conservation Actions

No conservation actions are known for this species, however none are considered necessary, other than taxonomic work to verify the presence of two distinct species.