Cycas petraea
A.Lindstr. & K.D.Hill
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cycas petraea.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(v)↘Décroissante- Évaluation
- 2023 · v3.1
- Altitude
- 600 – 1500 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Cycas petraea is locally abundant in Thailand, and in Laos there are fairly large subpopulations in the two locations. The subpopulation in Lao PDR have been declining but several new subpopulations were found in Thailand in 2018-2019 and there is little evidence of any imminent threats to these subpopulations (A. Lindström pers. comm.) .
Menaces identifiées(2 menaces classées CMP-IUCN)
5_2_1Intentional use (species is the target)Negligible declinesMinority (<50%)Ongoing2_1_2Small-holder farmingUnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Although localized, this is an abundant species, mostly occurring in relatively inaccessible sites. The present range and population size is substantially untouched, and there is little threat to the survival of the species either by collecting or habitat destruction. There are reports of limited local plant trade and some international trade in seeds has been recorded. Although its subpopulations in Laos are gradually being reduced, large subpopulations in Vang Vieng area still remain (Averyanov et al. 2014).
Habitats préférentiels (classification IUCN)
3_5Shrubland - Subtropical/Tropical Dry6Rocky areas (eg. inland cliffs, mountain peaks)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix II of the CITES Appendices. There is at least one subpopulation within a protected area. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection4_3Awareness & communications
Stress écologiques (4)Stresses Classification — IUCNExpert
1_1Ecosystem conversion2_1Species mortality2_3_6Skewed sex ratios2_3_7Reduced reproductive success
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternationalnational
Priorités de recherche (1)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
CycadTree - large
Références bibliographiques (7)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
- GBIF.org. 2020. <i>Cycas petraea</i> A. Lindstr. & K.D. Hill. Available at: <a href="http://data.gbif.org/species/2683232">http://data.gbif.org/species/2683232</a>.
- Averyanov, L.V., Nguyen, T.H., Sinh, K.N., Pham, T.V., Lamxay, V., Bounphanmy, S., Lorphengsy, S., Phan, L.K., Lanorsavanh, S. and Chantthavongsa, K. 2014. Gymnosperms of Laos. <i>Nordic Journal of Botany</i> 32(6): 765-805. doi: 10.1111/njb.00498.
- Donaldson, J.S. (ed.). 2003. <i>Cycads. Status Survey and Conservation Action Plan</i>. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
- Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
- Lindström, A. and Hill, K.D. 2002. New species and a new record of <i>Cycas</i> (Cycadaceae) from Thailand. <i>Brittonia</i> 54(4): 298-304.
- Hill, K.D. and Stevenson, D.W. 1998 - 2006. The Cycad Pages. Available at: <a href="http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/index.html">http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/index.html</a>.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Averyanov, L. & Lindstrom, A.
contributor
Bösenberg, J.D.
evaluator
Bösenberg, J.D.
Averyanov, L. & Lindstrom, A. 2023. Cycas petraea. The IUCN Red List of Threatened Species 2023: e.T178873A69154793. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s
Consulter sur les bases externes
Observations & statuts
Cartographie
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (1)— redirigent vers cette page
- Cycas petraeA.Lindstr. & K.D.Hill
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).