Map_thumbnail_large_font

Arenaria bolosii

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA CARYOPHYLLALES CARYOPHYLLACEAE

Scientific Name: Arenaria bolosii
Species Authority: (Cañig.) L.Sáez & Rosselló
Synonym/s:
Arenaria grandiflora L. subspecies bolosii (Cañig.) Küpfer

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v)+2ab(iii,v); C2a(ii) ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Assessor/s: Bibiloni, G. & Mus, M.
Reviewer/s: Strahm, W. & de Montmollin, B. (Mediterranean Island Plants Red List Authority)
Justification:
The area where it is found and the number of individuals are very small, it is known from a single site, and the habitat where it grows as well as the number of mature individuals continues to decline.
History:
1997 Endangered (Walter and Gillett 1998)

Geographic Range [top]

Range Description: This species is only known from a single site on the island of Majorca in the central part of the Tramuntana mountain range.
Countries:
Native:
Spain (Baleares)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Less than 200 individuals grow in one single site covering approximately one hectare.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This herbaceous perennial is very sensitive to competition from other species and therefore grows in open areas with little soil cover. It is found above an altitude of 900 m on north-facing slopes.
Systems: Terrestrial

Threats [top]

Major Threat(s): Plant collectors seeking botanical rarities directly threaten this species. In addition, it seems to hybridize with a closely related species, Arenaria grandiflora subsp. glabrescens. Other threats include hikers who trampling the plant, fires, and habitat modification as more people use the area for hiking and camping.

Conservation Actions [top]

Conservation Actions: Actions in Place
Legally: This plant’s habitat is protected by Law 1/1991 of the Parliament of the Balearic Islands as a Natural Site of Special Interest. It is listed as Critically Endangered in the "Lista Roja de la Flora Vascular Española" (Red List of the Spanish Vascular Flora), although this does not confer any specific legal protection.

In situ: No particular measures have been taken.

Ex situ: Seeds of this plant are stored in the seed bank of the Botanic Garden of Sóller, but it is possible that these are hybrids with Arenaria grandiflora subsp. glabrescens.

Actions Needed
This species merits increased legal protection, such as inclusion in the Annexes of the Bern Convention and the EC Habitats Directive. Public access to the site must be controlled. Urgent conservation measures must be taken which include reinforcing the number of plants that remain at this last site and reintroducing the species into other areas where it was previously known.

If the seeds stored in seedbanks are found to be hybrids, any re-introduction campaign using this material will be detrimental to conservation. Genetic studies are therefore needed, and seeds should be collected only when it has been established that they belong to this species.
Citation: Bibiloni, G. & Mus, M. 2006. Arenaria bolosii. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 20 April 2014.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided