Cycas seemannii
A.Braun
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cycas seemannii.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères A4cd↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 0 – 600 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Population estimates range between 10,000-12,000 plants in the wild.
Menaces identifiées(4 menaces classées CMP-IUCN)
1_3Tourism & recreation areasUnknownUnknownOngoing8_2_2Named speciesUnknownUnknownFuture2_1_1Shifting agricultureOngoing5_2_1Intentional use (species is the target)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
A great deal of its habitat has been replaced by agriculture, yet, many plants are still encountered in patches of undisturbed forest. An increasing threat from approaching hotel and beachfront development is evident through the whole distribution. There is also a possible threat from constant importation of Cycas revoluta as an ornamental in both Fiji and New Caledonia. This could in turn bring in the cycad Aulacaspis scale.
Habitats préférentiels (classification IUCN)
13_3Marine Coastal/Supratidal - Coastal Sand Dunes1_5Forest - 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. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species. Detecting and monitoring programmes for the possible presence of the cycas Aulacaspis scale need to be implemented.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection4_3Awareness & communications
Stress écologiques (7)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_3_8Other
Usage & commerce (2)Use & Trade — IUCNExpert
1Food - humansubsistance13Pets/display animals, horticultureinternationalnational
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_4Harvest, use & livelihoods1_5Threats
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
AustralasianOceanian
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
CycadTree - large
Références bibliographiques (9)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).
- IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 July 2022).
- Keppel, G. 2009. Morphological variation, an expanded description and ethnobotanical evaluation of <i>Cycas seemannii</i> A.Braun (Cycadaceae). <i>The South Pacific Journal of Natural Science</i> 27: 20-27.
- Keppel, G. and Osborne, R. 2004. Focus on <i>Cycas seemannii</i>. <i>Encephalartos</i> 78: 12-20.
- 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.
- Jones, D.L. 2002. <i>Cycads of the World (2nd edition)</i>. Smithsonian Institute Press, Washington, DC.
- Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
- 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>.
- Hill, K.D. 1994. The <i>Cycas rumphii</i> complex (Cycadaceae) in New Guinea and the western Pacific. <i>Australian Systematic Botany</i> 7: 543-567.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bösenberg, J.D.
contributor
Hill, K.D.
evaluator
Donaldson, J.S.
⚠ 1 erratum publié après l'évaluation.
Bösenberg, J.D. 2022. Cycas seemannii (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T42064A243420061. 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 (5)— redirigent vers cette page
- Cycas circinalis subsp. seemannii(A.Braun) J.Schust.
- Cycas circinalis subsp. seemanniiL.
- Cycas circinalis var. seemannii(A.Braun) J.Schust.
- Cycas rumphii f. seemannii(A.Br.) Kaneh.
- Cycas rumphii var. seemannii(A.Braun) Parham
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).