Acanthinula Spinifera

The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T59A13065420

Acanthinula spinifera

Assessment by: Groh, K. & Alonso, R.

View on www.iucnredlist.org

Citation: Groh, K. & Alonso, R. 2013. Acanthinula spinifera. The IUCN Red List of Threatened Species 2013: e.T59A13065420. http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T59A13065420.en

Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged.

Reproduction of this publication for resale, reposting or other commercial purposes is prohibited without prior written permission from the copyright holder. For further details see Terms of Use.

The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London.

If you see any errors or have any questions or suggestions on what is shown in this document, please provide us with feedback so that we can correct or extend the information provided.

THE IUCN RED LIST OF THREATENED SPECIES™ Taxonomy

Kingdom Phylum Class Order Family

Animalia Mollusca Gastropoda Stylommatophora Valloniidae

Taxon Name: Acanthinula spinifera Mousson, 1872 Assessment Information

Red List Category & Criteria: Data Deficient ver 3.1

Year Published: 2013

Date Assessed: September 30, 2010

Justification: This species has only been collected from 3 localities on 2 different islands, its real distribution is uncertain and the threats it faces are unknown. Therefore the species has been assessed as Data Deficient (DD).

Previously Published Red List Assessments 1996 – Data Deficient (DD)

1994 – Rare (R)

Geographic Range

Range Description: This species is currently known to occur on Tenerife and La Palma islands. However, the scarcity of shells and paucity of sampling means that the range is uncertain and that the species might be present on more islands.

Country Occurrence: Native: Spain (Canary Is.)

© The IUCN Red List of Threatened Species: Acanthinula spinifera – published in 2013. 2 http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T59A13065420.en Population There are no population trends available for this species. The species is very rare, but also very small and therefore not so easy to detect. Current Population Trend: Unknown

Habitat and Ecology (see Appendix for additional information) This species is thought to occur in natural forests and their edges (Fayal-Brezal).

Systems: Terrestrial

Use and Trade This species is not used.

Threats (see Appendix for additional information) The main threats to this species are the clearing of natural forest and wildfires. Conservation Actions More research is needed on the population, distribution, ecology and threats to this species. Credits

Assessor(s): Groh, K. & Alonso, R.

Reviewer(s): Neubert, E., Seddon, M.B. & Cuttelod, A.

© The IUCN Red List of Threatened Species: Acanthinula spinifera – published in 2013. 3 http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T59A13065420.en Bibliography Ibanez, M., Groh, K. and Alonso, M. R. 1990. On the validity of Patual (Acanthinla) spinifera Mousson, 1872. Schr. Malakozool. 3: 57-60, 1 pl.

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.1). Available at: http://www.iucnredlist.org. (Accessed: 16 June 2011).

Citation Groh, K. & Alonso, R. 2013. Acanthinula spinifera. The IUCN Red List of Threatened Species 2013: e.T59A13065420. http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T59A13065420.en

Disclaimer To make use of this information, please check the Terms of Use.

External Resources For Images and External Links to Additional Information, please see the Red List website.

Habitats (http://www.iucnredlist.org/technical-documents/classification-schemes)

Major Season Suitability Habitat Importance? 1. Forest -> 1.4. Forest - Temperate - Suitable Yes

3. Shrubland -> 3.4. Shrubland - Temperate - Suitable Yes

Threats (http://www.iucnredlist.org/technical-documents/classification-schemes)

Threat Timing Scope Severity Impact Score 6. Human intrusions & disturbance -> 6.3. Work & Ongoing - - - other activities Stresses: 1. Ecosystem stresses -> 1.2. Ecosystem degradation 7. Natural system modifications -> 7.1. Fire & fire Ongoing - - - suppression -> 7.1.1. Increase in fire frequency/intensity Stresses: 1. Ecosystem stresses -> 1.1. Ecosystem conversion 1. Ecosystem stresses -> 1.2. Ecosystem degradation 2. Species Stresses -> 2.1. Species mortality

Research Needed (http://www.iucnredlist.org/technical-documents/classification-schemes)

Research Needed 1. Research -> 1.2. Population size, distribution & trends

1. Research -> 1.5. Threats

Additional Data Fields

Population Population severely fragmented: No

© The IUCN Red List of Threatened Species: Acanthinula spinifera – published in 2013. 5 http://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T59A13065420.en The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T59A13065420

The IUCN Red List Partnership

THE IUCN RED LIST OF THREATENED SPECIES™