Overview

Distribution

Range Description

Polygala sinisica occurs only in Sardinia along the coast at Capo Mannu, situated just north of Tharros in the Sinis region. Its entire population is spread over just a few hectares.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
A perennial herb that grows in a hot and dry region on a stony or sandy limestone hillside in vegetation dominated by spiny or aromatic evergreen dwarf shrubs.

This species was first described in 1983. It grows in the same community with other Sardinian endemics such as Arum pictum, Genista corsica, Ornithogalum biflorum, Bellium bellidioides and Romulea requienii. It is found with species of great phytogeographic interest which are also very rare throughout Italy, such as Helianthemum caput-felis, Viola arborescens, and Coris monspeliensis.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(ii)+2ab(ii)

Version
3.1

Year Assessed
2006

Assessor/s
Camarda, I.

Reviewer/s
Strahm, W. & de Montmollin, B. (Mediterranean Island Plants Red List Authority)

Contributor/s

Justification
This species is only found in a few hectares and there is continuing decline in the area where it is found. While the exact number of individuals is not known, the native habitat in which this plant grows has been reduced due to current agricultural practices and changes in land-use.

History
  • 1997
    Endangered
    (Walter and Gillett 1998)
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Population

Population
The exact number of individuals is not known.

Population Trend
Unknown
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Threats

Major Threats
While the exact number of individuals is not known, the native habitat in which this plant grows has been reduced due to current agricultural practices and changes in land use. The land all the way down to the coastline is now farmed, and the hillsides where this species is found are sometimes over-grazed. Other threats include the development of coastal and access roads to the beach and the construction of secondary homes.
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Management

Conservation Actions

Conservation Actions
Actions in Place
Legally: Currently there is no legal protection for this species, despite the fact that the regional council of Sardinia proposed a draft law in 2001 concerning protection of plant species on the island, and P. sinisica is listed in the Annex as an endemic species. However this law is controversial as it may increase collecting interest in the species.

In situ: Although the Italian Red List of 1992 proposed to set up a nature reserve at Capo Mannu and along the coast of the Sinis peninsula, the site is still threatened by deforestation and receives no legal protection.

Ex situ: No measures taken.

Actions Needed
The conservation measures suggested in the Italian Red List of 1992 need to be implemented. Full habitat protection, ex situ cultivation, and fieldwork to determine the exact size of the population are needed.
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Wikipedia

Polygala sinisica

Polygala sinisica is a species of plant in the Polygalaceae family. It is endemic to Italy.

Distribution[edit]

Polygala sinisica occurs only in Sardinia, along the coast at Capo Mannu, situated just north of Tharros in the Sinis region.

Its natural habitats are in Mediterranean shrubby vegetation and rocky areas.

It is an IUCN Red List Critically Endangered plant species and IUCN Top 50 Campaign Mediterranean Island Plants, threatened by habitat loss.

Source[edit]

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