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Napaeus osoriensis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA MOLLUSCA GASTROPODA STYLOMMATOPHORA ENIDAE

Scientific Name: Napaeus osoriensis
Species Authority: (Wollaston, 1878)

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B2ab(iii) ver 3.1
Year Published: 2013
Date Assessed: 2010-09-30
Assessor(s): Groh, K. & Alonso, R.
Reviewer(s): Seddon, M.B., Neubert, E. & Cuttelod, A.
Justification:
This species is endemic to a single site in lowland forest which has become degraded.  In the past the major threat was from forest management and habitat degradation, but now there is low impact (no use of the forest anymore)  with the remaining risk from fires. However, the species is vulnerable to changing forest management practices. Consequently the species is viewed as Critically Endangered (CR) B2ab(iii).  However it is recognised that future research may show the current management of the habitat has led to the improvement of the species status, in which case the species might qualify for a lower category if its population is stable. Therefore, once this data is available, the conservation status of this species should be reviewed. Monitoring long-terms habitat and species tends  is required.

Geographic Range [top]

Range Description: This species is only known from a single location, Osorio, in the lowland forest on Gran Canaria. It was originally recorded by Lowe and confirmed by Wollaston (1878), with recent records from the 1990's (Alonso et al. 1995).
Countries:
Native:
Spain (Canary Is.)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population:

Only 12 specimens were detected between 1870 and today. Therefore it is not possible to give a population trend.

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: This species is only known from the degraded lowland laurisilva forest on Gran Canaria (Alonso et al. 1995).
Systems: Terrestrial

Use and Trade [top]

Use and Trade: This species is not used.

Threats [top]

Major Threat(s): In the past the major threat was from forest management and habitat degradation, but now, there is low impact (no use of the forest anymore), with the remaining risk from fires.

Conservation Actions [top]

Conservation Actions: In the past the major threat was from forest management and habitat degradation, but now the forest is protected and managed. However, the species is vulnerable to changing forest management practices. These should incorporate elements specific to the conservation of the species and habitat restoration is encouraged.  Monitoring long-terms trends in habitat change and the species are required.

Citation: Groh, K. & Alonso, R. 2013. Napaeus osoriensis. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 23 September 2014.
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