| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| PLANTAE | TRACHEOPHYTA | LILIOPSIDA | ARALES | ARACEAE |
| Scientific Name: | Biarum davisii |
| Species Authority: | Turrill |
| Taxonomic Notes: | According to Boyce (2008) Biarum davisii and B. marmarisense (= B. davisiii ssp. marmarisense) are separate species. |
| Red List Category & Criteria: | Near Threatened ver 3.1 |
| Year Published: | 2011 |
| Assessor/s: | Bazos, I. & Delipetrou, P. |
| Reviewer/s: | de Montmollin, B., Collett, L. & Bilz, M. |
|
Justification: The species was characterised as Rare in the 1995 Red Data Book and its known distribution is quite restricted. According to Boyce (2008) the species may be easily overlooked due to its small size and fleeting appearance of the inflorescences, therefore its area of occupancy may be incompletely known. Nevertheless, extent of occurrence is certainly less than 20,000 km² and wild bulb collection for private gardens is ongoing although the levels are not known; therefore the taxon is classed as Near Threatened. Further research will provide information on any threats to known populations, and the number of these individual populations, which will allow a more definite assessment. |
|
| Range Description: | Biarum davisii is endemic to Crete (The Board of Trustees of the Royal Botanic Gardens, Kew 2010). It occurs in the the southeast, central and western part of the island at an altitude between 0 to 1,050 m. Extent of occurrence is currently estimated to be less than 5,000 km² and area of occupancy 68-80 km², however this could be a minimum estimate. |
| Countries: |
Native:
Greece (Kriti)
|
| Range Map: | Click here to open the map viewer and explore range. |
| Population: | Combined distribution data from Athanasiou (in Phitos et al. 1995), Boyce (2008), MAICh (2008) result in 17-20 mapped sites, although the number of locations and individual populations are not known. |
| Population Trend: |
Unknown
|
| Habitat and Ecology: |
Biarum davisii is found in open, grazed scrubland, and disturbed habitats including road and track margins in limestone-derived red soil and screes. It also occurs in clay soils and limestone pavement. According to Athanasiou (in: Phitos et al. 1995) the species has a long maturation time, approximately five to six years from seedling to flower. |
| Systems: | Terrestrial |
| Major Threat(s): | Bulb collection from the wild is a serious threat although detailed figures on the extent of collection are not known. There are no known threats to the habitat of B. davisii and the fact that it is found in disturbed habitats is encouraging. |
| Conservation Actions: |
This species is listed under Annex D of the EU Wildlife Trade Regulation 318-2008. It is also included in Annex D of the COMMISSION REGULATION (EC) No 1497/2003 for the application of CITES. The EU regulation covers only live specimens but it is suggested that tuber and seed collection should be monitored as well. It is protected in Greece by the Presidential Decree 67/81 and is included in the Greek Red Data Book (Phitos et al. 1995). |
| Citation: | Bazos, I. & Delipetrou, P. 2011. Biarum davisii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 24 May 2012. |
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