Ontologia
Cycas taitungensis

Cycas taitungensis

C.F.Shen, K.D.Hill, C.H.Tsou & C.J.Chen

ENLR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Cycadopsida
  4. Cycadales
  5. Cycadaceae
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Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Cycas taitungensis.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

EN · En dangercritères A3e; B1ab(v)↘Décroissante
Évaluation complète
Évaluation
2022 · v3.1
Altitude
300 – 950 m
Profondeur
– m
État de la populationExpert
Cycas taitungensis occurs at two locations. Genetic studies show low levels of differentiation between these subpopulations. At least 1,700 plants occur in the Taitung Hongyeh Village Cycas Nature Reserve. It is estimated that there are in excess of 10,000 plants in the wild.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 7_1_1
    Increase in fire frequency/intensity
    UnknownUnknownOngoing
  • 5_2_1
    Intentional use (species is the target)
    Ongoing
  • 8_1_2
    Named species
    Ongoing
Description complète des menacesExpert
The invasive Cycas Aulacaspis scale is present in the Taitung Hungyeh Village Cycas Nature Reserve. Poaching of plants and seed from habitat plants also poses a threat to this species. Additionally, the habitat is subjected to periodic fires.

Habitats préférentiels (classification IUCN)

  • 1_5Forest - Subtropical/Tropical Dry
  • 6Rocky areas (eg. inland cliffs, mountain peaks)
Mesures de conservation recommandéesExpert
This species is listed in Appendix II of the CITES Appendices. Plants are protected in the Taitung Hongyeh Village Cycas Nature Reserve and the Coastel Range Taitung Cycas reserve. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.
Actions de conservation (1)Expert
  • 4_3Awareness & communications
Stress écologiques (5)Expert
  • 1_3Indirect ecosystem effects
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_1Species mortality
  • 2_3_8Other
Usage & commerce (1)Expert
  • 13Pets/display animals, horticulture
    internationalnationalsubsistance
Priorités de recherche (1)Expert
  • 1_2Population size, distribution & trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Indomalayan

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - large
Références bibliographiques (7)Expert
  1. 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).
  2. 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).
  3. Chen, J. and Stevenson, D.W. 2006. Flora of China. Available at: <a href="www.efloras.org">www.efloras.org</a>.
  4. Huang, S., Hsieh, H-T., Fang, K. and Chiang, Y-C. 2004. Patterns of genetic variation and demography of <i>Cycas taitungensis</i> in Taiwan. <i>The Botanical Review</i> 70(1): 86-92.
  5. Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
  6. 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>.
  7. Shen, C.F., Hill, K.D., Tsou, C.H. and Chen, C.J. 1994. <i>Cycas taitungensis</i> CF Shen, KD Hill, CH Tsou & CJ Chen, sp. nov.(Cycadaceae), a new name for the widely known cycad species endemic in Taiwan. <i>Bot. Bull. Acad. Sin.</i> 35: 133-140.
Évaluateurs & contributeurs (3)Expert
assessor
Bösenberg, J.D.
contributor
Haynes, J. & Lindstrom, A.
evaluator
Donaldson, J.S.
⚠ 1 erratum publié après l'évaluation.

Bösenberg, J.D. 2022. Cycas taitungensis (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T42067A243420506. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

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

GBIFiNaturalistEOLIUCN

Cartographie

GBIF Maps

Bibliographie

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