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Craspedopoma monizianum 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Architaenioglossa Craspedopomatidae

Scientific Name: Craspedopoma monizianum Lowe, 1860

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2011
Date Assessed: 2010-09-30
Assessor(s): Seddon, M.
Reviewer(s): Cameron, R., Groh, K. & Cuttelod, A.
Justification:
Seddon (2008) assessed this species as Near Threatened (version 3.1) due to the small number of known localities (between 7 and 15) with a gradual decline in habitat quality close to roads and gardens. Like all species on Madeira, the species also has  restricted extent of occurrence.  The assessment could meet the criteria for Vulnerable, if the restricted number of localities is confirmed, however, at present it is thought to be under-recorded and present in small fragments of surviving habitat and hence listed as Near Threatened, almost meeting criteria B.

Geographic Range [top]

Range Description:This species is restricted to Madeira, where it is mainly found on the south side of the island outside the laurisilva zone, in small remnants of suitable habitat, sometimes laurisilva forest in ravines near the coast.
Countries occurrence:
Native:
Portugal (Madeira)
Additional data:
Number of Locations:7-15
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is found in a small number of sites, therefore the population size is presumably low.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is found in damp shaded ravines and rocky ledges amongst leaf-litter and mosses extending down to sea level.
Systems:Terrestrial

Use and Trade [top]

Use and Trade: The species is not utilised.

Threats [top]

Major Threat(s): This species is affected by declining habitat quality, where there are greater pressures from development as urban areas and the road infrastructure expands. Some non-native species of plants are found in these habitats and the impacts are not known.

Conservation Actions [top]

Conservation Actions: No specific conservation measures for this species are known however, the species would benefit from habitat monitoring, as a proxy for population monitoring and further survey work to find other small remnants of suitable habitat to establish if the species has a greater distribution.

Citation: Seddon, M. 2011. Craspedopoma monizianum. The IUCN Red List of Threatened Species 2011: e.T156955A5021127. . Downloaded on 21 November 2017.
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