Zamia meermanii
Calonje
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Zamia meermanii.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B1ab(i,ii,iii,iv,v)↘Décroissante- Évaluation
- 2022 · v3.1
- Altitude
- 40 – 200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Based on an average estimated population density of 30 adult plants per km², the estimated total population size for this species is 12,000 plants. The karst hills where this species occurs are often isolated and separated by unsuitable habitats such as lowland forest, lowland savannas, and agricultural areas. In addition, this species occurs in discrete subpopulations of only a few individuals, and does not appear to occur on all suitable habitats within its geographic range. As a result of the isolation between karst mountains and the clumped distribution of this species, populations are considerably fragmented. Visits to localities where this species occurs appear to indicate that reproduction is occurring and seedling regeneration is healthy (Calonje 2009; P. Griffith pers. obs.).
Menaces identifiées(3 menaces classées CMP-IUCN)
3_2Mining & quarryingUnknownUnknownOngoing5_2_1Intentional use (species is the target)UnknownUnknownPast, Likely to Return7_1_1Increase in fire frequency/intensityUnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The primary threat to this species appears to be fire, utilized in adjoining areas for slash and burn agriculture. These fires have been observed spreading up surrounding karst hills and decimating native vegetation. Another important threat to this species is mining for construction aggregates and dolomite, with several active and planned quarries in the region. Recent fieldwork in Belize suggests that illegal wild collection of cycad plants and seeds has occurred in the past and may present an additional threat to this species. Hopefully, the difficult terrain and inaccessibility of this cliff dwelling plant, combined with the fact that approximately 50% of its area of occupancy lies within protected areas will help minimize the risk of illegal harvesting (Calonje 2009).
Habitats préférentiels (classification IUCN)
6Rocky areas (eg. inland cliffs, mountain peaks)★1_5Forest - Subtropical/Tropical Dry1_6Forest - Subtropical/Tropical Moist Lowland
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is listed in CITES Appendix II. Approximately 50% of the area of occupancy of Zamia meermanii lies within protected areas. Hopefully this fact, combined with the difficult terrain and inaccessibility of this cliff dwelling plant, will help minimize the future risk of illegal harvesting (Calonje 2009). Ex situ collections are established at Green Hills Botanical Collections, Belize Botanic Gardens, and Montgomery Botanical Center. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.
Actions de conservation (1)Conservation Actions Classification Scheme — IUCNExpert
4_3Awareness & communications
Stress écologiques (5)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation2_1Species mortality2_3_6Skewed sex ratios2_3_7Reduced reproductive success
Priorités de recherche (1)Research Needed Classification — IUCNExpert
3_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 (4)Sources scientifiques de l'évaluation IUCNExpert
- 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).
- 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).
- Biodiversity & Environmental Resource Data System of Belize. 2020. <i>Zamia meermanii</i>. Available at: <a href="http://www.biodiversity.bz/find/species/profile/profile.phtml?species_id=2201">http://www.biodiversity.bz/find/species/profile/profile.phtml?species_id=2201</a>. (Accessed: 2020).
- Calonje, M. 2009. A new cliff-dwelling species of <i>Zamia</i> (Zamiaceae) from Belize. <i>Journal of the Botanical Research Institute of Texas</i> 3(1): 23-29.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Calonje, M. & Griffith, M.P.
evaluator
Bösenberg, J.D.
⚠ 1 erratum publié après l'évaluation.
Calonje, M. & Griffith, M.P. 2022. Zamia meermanii (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T187841A243407510. Accessed on 05 May 2026.
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