Biarum davisii
Turrill
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
NT · Quasi menacéecritères B1b(iii)+2b(iii); C2a(i)?Inconnue- Évaluation
- 2024 · v3.1
- Altitude
- 0 – 1050 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Combined distribution data from Athanasiou (in Phitos et al. 1995), Boyce (2008), MPCU-MAICH (2022) and Strid (2022) result in 20-25 mapped sites. In some known sites only a few dozen mature individuals (<250) have been counted. The number of mature individuals in each subpopulations is not expected to exceed 250 based on field observation. It can be concluded that its population may not exceed 9,000 mature individuals in total.
Menaces identifiées(3 menaces classées CMP-IUCN)
1_1Housing & urban areasRapid DeclinesMinority (<50%)Past, Likely to Return5_2_1Intentional use (species is the target)Slow, Significant DeclinesUnknownOngoing4_1Roads & railroadsOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Collection of bulbs from the wild is a serious threat, although detailed data on the extent of collections are not known (Bazos and Delipetrou 2013). The opening of roads and residential expansion has been observed to be a cause of habitat reduction and fragmentation in SW Crete.
Habitats préférentiels (classification IUCN)
14_2Artificial/Terrestrial - Pastureland14_5Artificial/Terrestrial - Urban Areas3_8Shrubland - Mediterranean-type Shrubby Vegetation
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
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 some of its supopulations are included within Natura 2000 sites. Moreover the species is conserved ex situ by the Mediterranean Plant Conservation Unit of MAICh (MPCU-MAICH).
It is protected in Greece by the Presidential Decree 67/81 and some of its supopulations are included within Natura 2000 sites. Moreover the species is conserved ex situ by the Mediterranean Plant Conservation Unit of MAICh (MPCU-MAICH).
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection3_4_2Genome resource bank
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_2Species disturbance2_3_7Reduced reproductive success
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats2_1Species Action/Recovery Plan
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Palearctic
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Geophyte
Références bibliographiques (6)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 28 October 2024).
- Strid, A. 2022. <i>Flora Hellenica Database</i>. personal communication (accessed Dec 2022).
- Strid, A. 2016. <i>Atlas of the Aegean Flora. (Part 1 & 2)</i>. Botanic Garden and Botanical Museum Berlin, Freie Universität Berlin. Englera 33.
- Bazos, I. & Delipetrou, P. 2011. Biarum davisii. Available at: <a href="https://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T165166A5985370.en">https://dx.doi.org/10.2305/IUCN.UK.2011-1.RLTS.T165166A5985370.en</a>. (Accessed: 26 April, 2023).
- Boyce, P.C. 2008. A taxonomic revision of <i>Biarum</i>. <i>Curtis's Botanical Magazine</i> 25: 2-118.
- Phitos, D., Strid, A., Snogerup, S. and Greuter, W. (eds). 1995. <i>The Red Data Book of Rare and Threatened Plants of Greece.</i> WWF-Greece, Athens.
Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Fournaraki, C., Bazos, I. & Markaki, E.
contributor
Delipetrou, P.
evaluator
Samaropoulou, S.
facilitators
Fassou, G.
Fournaraki, C., Bazos, I. & Markaki, E. 2024. Biarum davisii. The IUCN Red List of Threatened Species 2024: e.T165166A225864319. Accessed on 05 May 2026.
Indicateurs écologiquesTolérance thermique · radar EIVE · triangle CSR
Indicateurs écologiques Ellenberg-type
EIVE 1.0 — Dengler 2023Position de l'espèce sur les 5 dimensions écologiques européennes (M / N / R / L / T), échelle 0-10. La zone estompée représente la niche width (variabilité tolérée).
- Humidité
- xérophile ↔ hygrophile
- Azote
- oligotrophe ↔ nitrophile
- Réaction (pH)
- silicicole ↔ calcicole
- Lumière
- sciaphile ↔ héliophile
- Température
- cryophile ↔ thermophile
3.7
xérophile
4.8
intermédiaire
8.4
calcicole strict
8.6
héliophile strict
7.5
thermophile
Source : EIVE 1.0 (Dengler et al. 2023). CC-BY 4.0. Échelle harmonisée 0-10 (équivalent inverse-rang sur les systèmes Ellenberg, Landolt, Pignatti, etc.). Niche width = écart-type d'estimation, indicateur de fiabilité (zone estompée).
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.
Consulter sur les bases externes
Observations & statuts
Cartographie