Cycas glauca
Hort. ex Miq.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cycas glauca.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
CR · En danger critiquecritères A2ac+4ace↘Décroissante- Évaluation
- 2023 · v3.1
- Altitude
- 50 – 500 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Cycas glauca was originally quite widespread and locally abundant on both Sumba and Timor. It is unknown if there are any subpopulations within protected areas. It is estimated that fewer than 3,000 mature plants remain in the wild.
Menaces identifiées(2 menaces classées CMP-IUCN)
2_1_2Small-holder farmingUnknownUnknownOngoing8_2Problematic native species/diseasesFuture
Description complète des menacesTexte détaillé évaluation IUCNExpert
Habitat destruction has caused an estimated population reduction of 80% in the last 10 years, while the cycad scale (Aulacaspis yasumatsui) is a potential future threat (A. Lindstrom pers. comm.). Subopulations in both Timor-Leste and Nusa Tenggara Timur have suffered from habitat destruction, and while the scale has not been seen in the wild, it is common on cultivated plants of Cycas revoluta (A. Lindstrom pers. comm.). There are, however, several subpopulations in Sumba with little threat or reduction in subpopulations; and no scale has been observed yet.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix II of the CITES Appendices. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species. Identification of areas suitable for the protection of natural subpopulations is urgently needed.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection4_3Awareness & communications
Stress écologiques (3)Stresses Classification — IUCNExpert
1_1Ecosystem conversion2_1Species mortality2_1Species mortality
Priorités de recherche (7)Research Needed Classification — IUCNExpert
1_1Taxonomy1_2Population size, distribution & trends1_3Life history & ecology1_4Harvest, use & livelihoods1_5Threats1_6Actions3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Australasian
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Cycad
Références bibliographiques (3)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).
- Lindstrom, A.J., Hill, K.D. and Stanberg, L.C. 2009. The genus <i>Cycas</i> (Cycadaceae) in Indonesia. <i>Telopea</i> 12(3): 385-418.
- Hill, K.D. and Stevenson, D.W. 1998-2006. The Cycad Pages. Available at: <a href="http://plantnet.rbgsyd.gov.au/PlantNet/cycad/">http://plantnet.rbgsyd.gov.au/PlantNet/cycad/</a>.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Lindstrom, A.
contributor
Bösenberg, J.D.
evaluator
Bösenberg, J.D.
Lindstrom, A. 2023. Cycas glauca. The IUCN Red List of Threatened Species 2023: e.T178874A68901750. 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 (3)— redirigent vers cette page
- Cycas circinalis f. glauca(Miq.) J.Schust.
- Cycas gracilis var. glaucaMiq.
- Cycas rumphii var. timorensisMiq.
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).