Ontologia
Zamia wallisii

Zamia wallisii

A.Braun

CRLR Monde (IUCN)
1 photo · Licences CC (Wikimedia Commons / iNaturalist)Click pour agrandir
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Zamia wallisii.

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

Liste rouge IUCN

CR · En danger critiquecritères B1ab(iii,v)Décroissante
Évaluation complète
Évaluation
2022 · v3.1
Altitude
7001500 m
Profondeur
m
État de la populationExpert

Zamia wallisii is known from a few subpopulations (two subpopulations identified to date). A few demographic studies have been carried out for the species (years 2013 to 2019 in "Las Orquideas" National Park). These studies, and general field surveys in other localities, suggest that the known subpopulations have small numbers of adults (less than 500 individuals). Total population size could be less than 1,000 adults. It is possible that the species has more subpopulations, therefore further research on population distribution and abundance is required.

Menaces identifiées(4 menaces classées CMP-IUCN)

  • 2_3_2
    Small-holder grazing, ranching or farming
    Rapid DeclinesMajority (50-90%)Ongoing
  • 3_2
    Mining & quarrying
    Rapid DeclinesMinority (<50%)Ongoing
  • 2_1_2
    Small-holder farming
    Slow, Significant DeclinesMajority (50-90%)Ongoing
  • 5_3_3
    Unintentional effects: (subsistence/small scale) [harvest]
    Slow, Significant DeclinesMajority (50-90%)Ongoing
Description complète des menacesExpert

All subpopulations of the species occur in landscapes threatened with high deforestation rates, caused by agricultural expansion, mostly forest destruction for cattle ranching, crops and gold mining. The forest patches where subpopulations remain are small (less than 500 hectares) and they are degraded by human activities like logging and hunting. Although the subpopulations occur within and nearby a National Park, there are private lands within this protected area, and human settlers are expanding agricultural activities into the forest habitats where the species occurs.

Habitats préférentiels (classification IUCN)

  • 1_6Forest - Subtropical/Tropical Moist Lowland
  • 1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesExpert
Some conservation actions have been intended for the species, as it is listed on a threatened-species resolution in Colombia and in CITES Appendix II, therefore Colombian environmental authorities are required to prevent and mitigate negative impacts of human activities on this threatened species and to regulate its international commerce. In addition, Colombia launched in 2015 a conservation action plan for Cycads, and in the last few years the “Colombian Cycad Society” has been working to promote population and habitat protection and restoration of small populations for Zamia species in the country, complemented with conservation actions related to research, monitoring, communication and education, among others.

Zamia 
wallisii is present within one protected area, but the subpopulations are near private lands with agricultural expansion, therefore their habitat is not well protected. The species has no representation in ex situ collections in botanical gardens in Colombia, and has proven to be difficult to propagate ex situ. A restoration programme has been established for the species since the year 2013, where seedlings are produced at greenhouses near to the original forest habitat and juveniles plants are reintroduced to supplement the local subpopulations. Further urgent actions are required to improve population and habitat viability in the long term. The conservation action plan for Colombian Cycads has proposed specific conservation actions for the species, and there is a species conservation strategy, but the strategy still requires to secure funding for the long term.
Actions de conservation (16)Expert
  • 1_1Site/area protection
  • 1_2Resource & habitat protection
  • 2_1Site/area management
  • 2_3Habitat & natural process restoration
  • 3_2Species recovery
  • 3_4_1Captive breeding/artificial propagation
  • 4_2Training
  • 4_3Awareness & communications
  • 5_1_2National level
  • 5_1_3Sub-national level
  • 5_2Policies and regulations
  • 5_4_2National level
  • 5_4_3Sub-national level
  • 6_1Linked enterprises & livelihood alternatives
  • 6_4Conservation payments
  • 6_5Non-monetary values
Stress écologiques (4)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
Usage & commerce (1)Expert
  • 13Pets/display animals, horticulture
    international
Priorités de recherche (9)Expert
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 1_4Harvest, use & livelihoods
  • 1_5Threats
  • 1_6Actions
  • 2_1Species Action/Recovery Plan
  • 2_2Area-based Management Plan
  • 3_1Population trends
  • 3_4Habitat trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Neotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Cycad
Références bibliographiques (3)Expert
  1. 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).
  2. Lopez-Gallego, C. 2015. <i>Plan de Accion para la Conservacion de las Zamias de Colombia</i>. Ministerio de Ambiente y Desarrollo Sostenible de Colombia, Bogota.
  3. Stevenson, D.W. 2004. Cycads of Colombia. <i>The Botanical Review</i> 70(2): 194-234.
Évaluateurs & contributeurs (3)Expert
assessor
Lopez-Gallego, C.
contributor
Stevenson, D.W.
evaluator
Bösenberg, J.D.

Lopez-Gallego, C. 2022. Zamia wallisii. The IUCN Red List of Threatened Species 2022: e.T42121A69834104. 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

Cartographie

Bibliographie

Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (3)— redirigent vers cette page

  • Aulacophyllum wallisii(A.Braun) Regel
  • Zamia furfuracea var. latifoliaJ.Schust.
  • Zamia wallisiiH.J.Veitch

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