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Cerastium sventenii 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Caryophyllaceae

Scientific Name: Cerastium sventenii
Species Authority: Jalas

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(iii,v) ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Assessor(s): Mesa Coello, R., Acevedo Rodríguez, A., Oval de la Rosa, J.P., Hernández Luís, A., Marrero Gómez, M.V. & Carqué Álamo, E.
Reviewer(s): Strahm, W. & de Montmollin, B. (Mediterranean Island Plants Red List Authority)
Justification:
The species is found in 12 subpopulations, only 2,000 individuals exist. Its area of occupancy is less than 5 km² and there is continuing decline in habitat and number of mature individuals.
Previously published Red List assessments:
  • 1997 – Vulnerable (V)

Geographic Range [top]

Range Description:The species is endemic to the Canary Islands. The subpopulations are found on the islands of Tenerife, La Palma and El Hierro.
Countries occurrence:
Native:
Spain (Canary Is.)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There are 12 confirmed subpopulations:

2 subpopulations on the summits of Tenerife: 136 individuals
3 subpopulations on the summits of Hierro: 151 individuals
7 subpopulations on the summits of La Palma: 1,057 individuals
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:This perennial herb grows on flat areas, mostly on the summits, in moist and shady fissures. It also colonizes moist talus in the fayal-brezal and monteverde forests.
Systems:Terrestrial

Threats [top]

Major Threat(s): Traditionally, the major threat was grazing from introduced herbivores. Despite attempts to control the herbivores they are still threatening the species. Competition from other plants and the presence of alien species are also threatening this species.

Conservation Actions [top]

Conservation Actions: Actions in Place
All the main subpopulatiuons are included in various natural protected sites (LIC). Seeds are stored in the seedbanks of E.T.S. de Ingenieros Agrónomos and of the Botanical Garden of Viera and Clavijo.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
suitability: Suitable  
3. Shrubland -> 3.8. Shrubland - Mediterranean-type Shrubby Vegetation
suitability: Suitable  
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability: Suitable  
2. Land/water management -> 2.1. Site/area management
3. Species management -> 3.4. Ex-situ conservation -> 3.4.2. Genome resource bank

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
  Subject to ex-situ conservation:Yes
In-Place Education
2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.2. Small-holder grazing, ranching or farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

8. Invasive & other problematic species & genes -> 8.1. Invasive non-native/alien species -> 8.1.1. Unspecified species
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

8. Invasive & other problematic species & genes -> 8.2. Problematic native species
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

Bibliography [top]

IUCN. 2006. IUCN Red List of Threatened Species.

Walter, K.S. and Gillett, H.J. (eds). 1997. 1997 IUCN Red List of Threatened Plants. World Conservation Monitoring Centre. IUCN – The World Conservation Union, Gland, Switzerland and Cambridge, UK.


Citation: Mesa Coello, R., Acevedo Rodríguez, A., Oval de la Rosa, J.P., Hernández Luís, A., Marrero Gómez, M.V. & Carqué Álamo, E. 2006. Cerastium sventenii. The IUCN Red List of Threatened Species 2006: e.T61635A12530369. . Downloaded on 01 July 2016.
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