Cerastium sventenii

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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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

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)

Contributor/s:

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.

History:

1997

–

Vulnerable (Walter and Gillett 1998)

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:	Native: Spain (Canary Is.)
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
Population Trend:	Decreasing

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.

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.

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.

Bibliography [top]

	IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006. Walter, K.S. and Gillett, H.J. (eds). 1998. 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. IUCN - The World Conservation Union, Gland, Switzerland and Cambridge, UK.

IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006.

Walter, K.S. and Gillett, H.J. (eds). 1998. 1997 IUCN Red List of Threatened Plants. Compiled by the 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. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 24 May 2013.
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