Zamia encephalartoides
D.W.Stev.
Graphe en cours d’indexation
Calcul du tissu écologique de Zamia encephalartoides.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(iii,v)+2ab(iii,v)↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 600 – 1000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Zamia encephalartoides is known from a few subpopulations (5 subpopulations identified to date). Some demographic studies have been carried out for the species (years 2009 to 2015 in two localities in the Santander province). These studies, in addition to general field surveys, suggest that at least two subpopulations have a large numbers of adults (more than 1,000 individuals) and have positive growth rates, but most subpopulations are small (less than 250 adults). The total population size probably does not exceed 5,000 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)
1_1Housing & urban areasRapid DeclinesMinority (<50%)Ongoing2_1_2Small-holder farmingRapid DeclinesMajority (50-90%)Ongoing2_3_2Small-holder grazing, ranching or farmingRapid DeclinesMinority (<50%)Ongoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]UnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
All subpopulations of the species occur in landscapes threatened with high deforestation rates, caused by agricultural and urban expansion, mostly forest destruction to establish goats and small-scale crops. The forest patches where subpopulations remain are small (less than 500 hectares) and they are degraded by human activities like logging. None of the subpopulations occur within protected areas.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry★3_5Shrubland - Subtropical/Tropical Dry★6Rocky areas (eg. inland cliffs, mountain peaks)★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Zamia encephalartoides is not present in any protected area. The species has ex situ collections in botanical gardens in Colombia (Medellin, Bucaramanga, Quindio, Tulua Gardens), and some reintroductions have been attempted in one locality. 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 a species conservation strategy has been designed for the species, but the strategy lacks funding to this date.
Actions de conservation (16)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection2_1Site/area management2_3Habitat & natural process restoration3_1_1Harvest management3_2Species recovery3_4_1Captive breeding/artificial propagation4_2Training4_3Awareness & communications5_1_2National level5_1_3Sub-national level5_2Policies and regulations5_4_2National level5_4_3Sub-national level6_1Linked enterprises & livelihood alternatives6_4Conservation payments
Stress écologiques (4)Stresses Classification — IUCNExpert
1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation
Usage & commerce (2)Use & Trade — IUCNExpert
1Food - humansubsistance13Pets/display animals, horticultureinternational
Priorités de recherche (11)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_4Harvest, use & livelihoods1_5Threats1_6Actions2_1Species Action/Recovery Plan2_2Area-based Management Plan2_3Harvest & Trade Management Plan3_1Population trends3_2Harvest level trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Systèmes (terrestre/eau douce/marin)
Formes de croissance
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- 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).
- 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.
- Lopez-Gallego, C., Calonje, M. and Idarraga, A. 2011. Conservation assessment and action plan for Zamia encephalartoides in Colombia. Universidad de Antioquia.
- Stevenson, D.W. 2004. Cycads of Colombia. <i>The Botanical Review</i> 70(2): 194-234.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
Lopez-Gallego, C. 2022. Zamia encephalartoides. The IUCN Red List of Threatened Species 2022: e.T42151A69839971. Accessed on 05 May 2026.
Distribution mondiale
Phénologie
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Observations & statuts
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