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Napaeus nanodes 

Scope: Global & Europe
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Stylommatophora Enidae

Scientific Name: Napaeus nanodes Shuttleworth, 1852

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(iii) (Regional assessment) ver 3.1
Year Published: 2011
Date Assessed: 2010-09-29
Assessor(s): Groh, K. & Alonso, M.R.
Reviewer(s): Neubert, E., Seddon, M.B. & Cuttelod, A.
Justification:
This species is endemic to Tenerife in the valley of Guimar, where it is considered to be threatened as it has a small range (4 locations with an area of occupancy of 12 km2), with threats from habitat degradation, due to forest exploitation and as such it is considered to be Endangered (EN) B2ab(iii).

Geographic Range [top]

Range Description:This species is endemic to the Canary Islands where it is found on Tenerife in the valley of Guimar.
Countries occurrence:
Native:
Spain (Canary Is.)
Additional data:
Estimated area of occupancy (AOO) - km2:12
Number of Locations:4
Lower elevation limit (metres):500
Upper elevation limit (metres):900
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is very rare (only 16 specimen have been collected in 4 years, only two of them alive).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is present in the "piso basal", typical vegetation of lowland canary islands and degraded lowland forest.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: There is no known trade in this species

Threats [top]

Major Threat(s): This species is present in degraded forest, so it is assumed that the threats in the three sites are related to forest exploitation. The area where it occurs (valley of Guimar) is much affected by the various activities of the nearby human population.

Conservation Actions [top]

Conservation Actions: This species is vulnerable to disturbance, and as such was listed as Vulnerable by Moliner Gomez et al. (2001).  Restoration of habitat and protection of the inhabited area would benefit this species.

Citation: Groh, K. & Alonso, M.R. 2011. Napaeus nanodes. The IUCN Red List of Threatened Species 2011: e.T14336A4433551. . Downloaded on 24 September 2018.
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