Cycas sphaerica
Roxb.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cycas sphaerica.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(iii,v)↘Décroissante- Évaluation
- 2023 · v3.1
- Altitude
- 300 – 1000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The overall population size is not well known. Subpopulations comprising 700 individuals were observed in Pinjarikonda Reserve Forest at Pinjarikonda waterfall. Aged individuals were found scattered on the hill top of Potulakonda Hill at an altitude of 456m, while young and newly emerging individuals were found along the stream bank of Pinjarikonda waterfall beside the Potulakonda Hill (Rao et al. 2014).
Menaces identifiées(4 menaces classées CMP-IUCN)
2_1_2Small-holder farmingUnknownUnknownOngoing3_2Mining & quarryingUnknownUnknownOngoing7_1_3Trend Unknown/UnrecordedUnknownUnknownOngoing5_2_1Intentional use (species is the target)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The pith of the stem of Cycas sphaerica is used to make ‘sago' flour and this results in the harvest of entire plants to access the pith. Habitat loss due to mining and clearing of the uphill forests for agriculture puts additional pressure on the natural subpopulations.
Some threats like forest fire, collection of male cones and collection of tender leaves have also been observed but the impact of these activities on the population has not been determined.
Some threats like forest fire, collection of male cones and collection of tender leaves have also been observed but the impact of these activities on the population has not been determined.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry2_1Savanna - Dry
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix II of the CITES Appendices. Pinjarikonda Reserve Forest is suitable for ex situ conservation of this species. 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 (5)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_3Indirect ecosystem effects2_1Species mortality2_1Species mortality
Usage & commerce (2)Use & Trade — IUCNExpert
1Food - humansubsistance11Other household goodssubsistance
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats1_6Actions3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Cycad
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).
- Rao, J.P., Kumar, M.R., Rao, V.S.R., Kumar, O.A. and Venkaiah, M. 2014. New population of <i>Cycas sphaerica </i>Roxb. (Cycadaceae) discovered in Pinjarikonda Reserve Forest, Andhra Pradesh, India. <i>Journal of Threatened Taxa</i> 6(6): 5871-5874.
- Singh, R. and Singh, K.J. 2011. The importance of Odisha <i>Cycas</i> in India. <i>Biodiversity</i> 12(1): 21-27.
- Lindström, A.J. and Hill, K.D. 2007. The genus <i>Cycas</i> (Cycadaceae) in India. <i>Telopea</i> 11(4): 463–488.
- Reddy, C.S., Reddy, K.N., Pattanai , C. and Raju, V.S. 2006. Ethnobotanical observations on some endemic plants of eastern Ghats, India. Available at: <a href="http://www.siu.edu/~ebl/leaflets/ghats.htm">http://www.siu.edu/~ebl/leaflets/ghats.htm</a>.
- Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
- Jones, D.L. 2002. <i>Cycads of the World</i>. Smithsonian Institution Press, Washington, DC.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Khuraijam, J. & Rao, J.
contributor
Varghese, A. & Krishnamurthy, V.
evaluator
Bösenberg, J.D.
Khuraijam, J. & Rao, J. 2023. Cycas sphaerica. The IUCN Red List of Threatened Species 2023: e.T42096A69158193. 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 (2)— redirigent vers cette page
- Cycas darshiiR.C.Srivast. & Jana
- Cycas sphericaRoxb. [orth. error]
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).