Ontologia
Faux Sagoutier

Faux Sagoutier

Cycas thouarsiiR.Br.

LCLR 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 thouarsii.

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

Liste rouge IUCN

LC · Préoccupation mineure→Stable
Évaluation complète
Évaluation
2024 · v3.1
Altitude
0 – 200 m
Profondeur
– m
État de la populationExpert
This is a locally abundant species with the population estimated to number more than 10,000 mature individuals.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 1_3
    Tourism & recreation areas
    Negligible declinesMinority (<50%)Ongoing
  • 2_1_2
    Small-holder farming
    Negligible declinesMinority (<50%)Ongoing
  • 5_2_1
    Intentional use (species is the target)
    Negligible declinesMinority (<50%)Ongoing
Description complète des menacesExpert
There are no major threats to this species, although plants would have been impacted in places by collectors, coastal developments (tourist resorts, urban expansion) and agricultural expansion (small-holder crops).

Habitats préférentiels (classification IUCN)

  • 13_3Marine Coastal/Supratidal - Coastal Sand Dunes
  • 1_5Forest - Subtropical/Tropical Dry
  • 1_6Forest - Subtropical/Tropical Moist Lowland
Mesures de conservation recommandéesExpert
This species is listed in Appendix II of the CITES Appendices. Plants possibly occur in the Saadani National Park in Tanzania. An education and awareness programme as well as the long-term monitoring of populations will support the conservation of this species.
Actions de conservation (2)Expert
  • 1_1Site/area protection
  • 4_3Awareness & communications
Stress écologiques (5)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 2_2Species disturbance
  • 2_3_6Skewed sex ratios
  • 2_3_7Reduced reproductive success
Usage & commerce (2)Expert
  • 1Food - human
    subsistance
  • 13Pets/display animals, horticulture
    internationalnational
Priorités de recherche (4)Expert
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 1_6Actions
  • 3_1Population trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - large
Références bibliographiques (9)Expert
  1. IUCN. 2024. The IUCN Red List of Threatened Species. Version 2024-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 27 June 2024).
  2. Bandeira, S., Manjate, A.M., Julien, V. and Martens, A. 2019. A Research on Distribution, Population Size Classes, Reproduction Status, Threats and Management Options for C.I.T.E.S. Non-detriment Findings of <i>Cycas thouarsii</i> in Mozambique. Report for CITES Authorities.
  3. Missouri Botanical Garden. 2014. Tropicos.org. Available at: <a href="http://www.tropicos.org/">http://www.tropicos.org/</a>.
  4. Goode, D. 2001. <i>Cycads of Africa</i>. D & E Cycads of Africa, Gallo Manor, Johannesburg, South Africa.
  5. Beentje, H.J. 1994. <i>Kenya Trees, Shrubs and Lianas</i>. National Museums of Kenya, Nairobi, Kenya.
  6. Goode, D. 1989. <i>Cycads of Africa</i>. Struik Winchester, Cape Town.
  7. Vorster, P. and E. 1986. Focus on <i>Cycas thouarsii</i>. <i>Encephalartos</i> 6: 3-10.
  8. Heenan, D. 1977. Some observations on the cycads of Central Africa. <i>Botanical Journal of the Linnean Society</i> 74: 279-288.
  9. Prain, D. 1917. <i>Flora of Tropical Africa; Cycadaceae</i>. L.Reeve & Co. Ltd., Kent.
Évaluateurs & contributeurs (3)Expert
assessor
Bösenberg, J.D.
contributor
Golding, J. & Hurter, P.J.H.
evaluator
Donaldson, J.S.

Bösenberg, J.D. 2024. Cycas thouarsii. The IUCN Red List of Threatened Species 2024: e.T41940A69827688. 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

BHLOpenAlex
Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (11)— redirigent vers cette page

  • Cycas circinalis f. trigonocarpoidesJ.Schust.
  • Cycas circinalis subsp. madagascariensisL.
  • Cycas circinalis subsp. madagascariensis(Miq.) J.Schust.
  • Cycas circinalis subsp. thouarsii(R.Br.) Engl.
  • Cycas circinalis subsp. thouarsiiL.
  • Cycas circinalis var. glaucaJ.Verschaff.
  • Cycas comorensisBruant
  • Cycas glaucophyllaSiebet & Voss
  • Cycas kirkiihort. ex J.Schust.
  • Cycas madagascariensisMiq.
  • Cycas wendlandiiHort.Sander.

Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).