Overview

Distribution

Range Description

The species is endemic to the Canary Islands. The subpopulations are found on the islands of Tenerife, La Palma and El Hierro.
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Ecology

Habitat

Habitat and Ecology

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
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B2ab(iii,v)

Version
3.1

Year Assessed
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)
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Population

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
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Threats

Major Threats
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.
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Management

Conservation Actions

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.
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Wikipedia

Cerastium sventenii

Cerastium sventenii is a species of plant in the Caryophyllaceae family. It is endemic to Spain. Its natural habitats are temperate forests, Mediterranean Matorral shrubland vegetation, and rocky areas. It is threatened by habitat loss.

Contents

Taxonomy

The taxonomy of the Cerastium sventenii is as follows:

  • Kingdom-Plantae
  • Phylum-Tracheophyta
  • Class-Magnoliopsida
  • Order-Caryophyllales
  • Famil-Caryophyllaceae[1]

Threats

The main threat that is affecting Cerastium sventenii is grazing herbivores that cannot be controlled.[1]

References

  1. ^ a b "Cerastium sventenii". International Union for Conservation of Nature and Natural Resources. http://www.iucnredlist.org/details/61635/0. Retrieved 30 January 2013.

Source


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