Ontologia

Thaumatococcus flavus

A.C.Ley

VULR Monde (IUCN)
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Thaumatococcus flavus.

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

Liste rouge IUCN

VU · Vulnérablecritères B2ab(i,ii,iii,iv,v)Décroissante
Évaluation complète
Évaluation
2023 · v3.1
Altitude
30550 m
Profondeur
m
État de la populationExpert

There is no information on the population size of this species.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 3_2
    Mining & quarrying
    Slow, Significant DeclinesMinority (<50%)Ongoing
  • 5_3_4
    Unintentional effects: (large scale) [harvest]
    Slow, Significant DeclinesMinority (<50%)Ongoing
  • 7_2_10
    Large dams
    Very Rapid DeclinesMinority (<50%)Ongoing
Description complète des menacesExpert

Thaumatococcus flavus is mostly threatened by hydroelectric projects and logging. Indeed, three occurrences are expected to disappear in the near future because they are located within the construction site and the projected inundated area of a planned hydro-electric project. Moreover, deforestation for the construction of infrastructures is already ongoing where the species is known. The species is also threatened by mining activities in the area of Mabounié and by logging in the region of Mikongo.

Habitats préférentiels (classification IUCN)

  • 1_6Forest - Subtropical/Tropical Moist Lowland
Mesures de conservation recommandéesExpert

Thaumatococcus flavus is known from one protected area: the Monts de Cristal National Park in Gabon. The species is subject to ex situ conservation as part of the Biodiversity Action Plan of the hydroelectric dam project in Kinguélé. Indeed, 85 individuals have been cultivated within the Kinguélé nursery with a current survival rate of 86%.

Since the species is threatened by hydroelectric dam projects, mining activities, and logging, various conservation measures should be considered. First, it should be sought in other places, to increase knowledge of its full distribution. Second, it should be regarded as an HCV1 species (High Conservation Value), and as a consequence should be included in the management plan of the industrial concessions within which it occurs. Finally, a public awareness campaign must be conducted targeting industrial companies and other private actors, NGOs, scientific institutions, and the government of Gabon to ensure that Thaumatococcus flavus is taken into consideration when decisions are made that could impact its conservation.

Actions de conservation (5)Expert
  • 1_2Resource & habitat protection
  • 2_1Site/area management
  • 4_3Awareness & communications
  • 5_3Private sector standards & codes
  • 5_4_2National level
Stress écologiques (5)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
Priorités de recherche (4)Expert
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 2_2Area-based Management Plan
  • 3_1Population trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or Herb
Références bibliographiques (4)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. Stévart, T., Bidault, E., Boupoya, A., Ikabanga, D., Paradis, A.-H., Texier, N., Phillipson, P.B. and Lowry, P.P. 2022. Threatened Plant Species of Gabon. St. Louis, U.S.A.. Missouri Botanical Garden. Available at: <a href="http://tropicos.org/Project/Threatened_Plants_Gabon">http://tropicos.org/Project/Threatened_Plants_Gabon</a>. (Accessed: April 2022).
  3. IUCN Standards and Petitions Committee. 2019. Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Subcommittee. Available at: <a href="http://www.iucnredlist.org/documents/RedListGuidelines.pdf">http://www.iucnredlist.org/documents/RedListGuidelines.pdf</a>.
  4. Ley, A.C. and Classen-Bockhoff, R. 2012. Five new species of Marantaceae endemic to Gabon. <i>Adansonia</i> 34(1): 37-52.
Évaluateurs & contributeurs (4)Expert
assessor
Paradis, A.-H., Bidault, E. & Stévart, T.
contributor
Lachenaud, O. & Nguimbit, I.
evaluator
Ikabanga, D.U., Barberá, P. & Texier, N.
institutions
Missouri Botanical Garden

Paradis, A.-H., Bidault, E. & Stévart, T. 2023. Thaumatococcus flavus. The IUCN Red List of Threatened Species 2023: e.T207933143A207934420. 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

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Observations & statuts

Bibliographie