Ceratozamia delucana
Vázq.Torres, A.Moretti & Carvajal-Hern.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Ceratozamia delucana.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères A2cd; B1ab(i,ii,iii)?Inconnue- Évaluation
- 2022 · v3.1
- Altitude
- 200 – 1500 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Field visits to the location have only documented 300 mature individuals in three separate subpopulations (Vázquez-Torres et al. 2008). According to Martínez-Domínguez et al. (2018) the distribution range is larger than previously though and, therefore, the numbers should also have increased. However, modelled distribution range shows that 68% of habitat has been transformed and this would have affected the population across its range, while targeted collecting of this extremely rare species may also be having an impact.
Menaces identifiées(2 menaces classées CMP-IUCN)
2_3_2Small-holder grazing, ranching or farmingRapid DeclinesMajority (50-90%)Ongoing5_2_1Intentional use (species is the target)Slow, Significant DeclinesMajority (50-90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The habitat is affected by goat pastoralism and marginal agriculture but the main concern is targeted collecting of this extremely rare species.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in Appendix I of the CITES Appendices. Long-term monitoring of subpopulations will support the conservation of this species.
Stress écologiques (3)Stresses Classification — IUCNExpert
1_2Ecosystem degradation2_3_6Skewed sex ratios2_3_7Reduced reproductive success
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternationalnational
Priorités de recherche (2)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Neotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Cycad
Références bibliographiques (3)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).
- Martínez-Domínguez, L., Nicolalde-Morejón, F., Vergara-Silva, F. and Stevenson, D.W. 2018. Taxonomic review of <i>Ceratozamia</i> (Zamiaceae) in the Sierra Madre Oriental, Mexico. <i>PhytoKeys</i> 100: 91-124.
- Vazquez-Torres, M., Moretti, A. and Carvajal-Hernandez, C. 2008. A new species of <i>Ceratozamia</i> (Zamiaceae) from Veracruz, Mexico. <i>Delpinoa</i> 50-51: 129-133.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bösenberg, J.D., Martinez-Dominguez, L. & Nicolalde-Morejón, F.
evaluator
Donaldson, J.S.
Bösenberg, J.D., Martinez-Dominguez, L. & Nicolalde-Morejón, F. 2022. Ceratozamia delucana. The IUCN Red List of Threatened Species 2022: e.T66901148A66901156. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s