Ontologia

Navia hohenbergioides

L.B.Sm.

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

Graphe en cours d’indexation

Calcul du tissu écologique de Navia hohenbergioides.

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

Liste rouge IUCN

LC · Préoccupation mineure?Inconnue
Évaluation complète
Évaluation
2013 · v3.1
Altitude
2001000 m
Profondeur
m
État de la populationExpert
The species was reported to be frequent at the type locality, in 1951. However, no current population data were found.

Menaces identifiées(3 menaces classées CMP-IUCN)

  • 3_2
    Mining & quarrying
    Ongoing
  • 6_1
    Recreational activities
    Ongoing
  • 7_1_1
    Increase in fire frequency/intensity
    Ongoing
Description complète des menacesExpert
More than 50% of the state of Amazonas is under protection and the population density remains very low, however, human impact has recently increased considerably in the region. The summits of all tepius above 800 m are designated conservation areas but this species is also recorded from lower altitudes (Sears 2013, specimen data). All commercial logging activities and mining activities have been legally banned in the Venezuelan Amazon but this prohibition lacks total support in some areas and some illegal activities may still be carried out. Gold and diamond mining have been noted on the lower slopes of some tepuis and increased tourism has brought additional problems of burning from escaped fires, trampling of vegetation and litter (Sears 2013). Extraction of adult plants from the wild for the horticulture trade have been shown to critically endanger populations of other saxicolous, narrow-range, endemic bromeliads of rock outcrops, in Brazil (Versieux and Wanderley 2007). However, it is not know whether this species is collected in the wild.

Habitats préférentiels (classification IUCN)

  • 2_1Savanna - Dry
  • 6Rocky areas (eg. inland cliffs, mountain peaks)
  • 1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesExpert
There are no known conservation measures specifically for this species, however, the species is known to occur within protected areas, such as in the Macizo Cuao Sipapo Forest Reserve. Venezuela has made great efforts in the last 20 years to build up an extensive and ambitious conservation program for the department of Amazonas but adequate management plans need to be implemented and coordinated with the various authorities and laws banning logging, mining and wildlife collections must be properly enforced. Further research and field work is recommended to establish the current population status of the species. Samples of seed should be collected and stored as an ex situ conservation measure.
Actions de conservation (5)Expert
  • 1_1Site/area protection
  • 2_1Site/area management
  • 3_4_1Captive breeding/artificial propagation
  • 3_4_2Genome resource bank
  • 4_3Awareness & communications
Stress écologiques (6)Expert
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_1Ecosystem conversion
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
  • 1_2Ecosystem degradation
Priorités de recherche (5)Expert
  • 1_2Population size, distribution & trends
  • 1_3Life history & ecology
  • 1_5Threats
  • 3_1Population trends
  • 3_4Habitat trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Neotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or HerbLithophyte
Références bibliographiques (11)Expert
  1. IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.2). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 13 November 2013).
  2. Sears, R. 2013. Tepus. Available at: <a href="http://worldwildlife.org/ecoregions/nt0169">http://worldwildlife.org/ecoregions/nt0169</a>. (Accessed: 2013).
  3. Funk, V., Hollowell, T., Berry, P., Kelloff, C. and Alexander, S.N. 2007. <i>Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana)</i>. Department of Botany, National Museum of Natural History, Washington, D.C.
  4. Rull, V. and Vegas-Vilarrúbia, T. 2006. Unexpected biodiversity loss under global warming in the neotropical Guayana Highlands: a preliminary appraisal. <i>Global Change Biology</i> 12(1): 1-9.
  5. Sanderson, E.W., Jaiteh, M., Levy, M.A., Redford, K.H., Wannebo, A.V. and Woolmer, G. 2002. The human footprint and the last of the wild. <i>Bioscience</i> 52(10): 891-904.
  6. Huber, O. 2001. Conservation and environmental concerns in the Venezuelan Amazon. <i>Biodiverity and Conservation</i> 10(2001): 1627-1643.
  7. Benzing, D.H. 2000. <i>Bromeliaceae: Profile of an Adaptive Radiation</i>. Cambridge University Press, Cambridge.
  8. Steyermark, J.A., Berry, P.E., Holst, B.K. and Yatskievych, K. (eds). 1997. <i>Flora of the Venezuelan Guayana. Volume 3. ARALIACEAE-CACTACEAE</i>.In: J.A. Steyermark, P.E. Berry, K. Yatskievych and B.K. Holst (eds), pp. 774. Missouri Botanical Garden Press, St Louis.
  9. Huber, O. 1988. Guayana highlands versus Guayana lowlands, a reappraisal. <i>Taxon</i> 37(3): 595-614.
  10. Oliva-Esteva, F. and Steyermark, J.A. 1987. <i>Bromeliaceae of Venezuela</i>. Armitano Editores, Caracas.
  11. Smith, L.B. and Downs, R.J. 1977. Bromelioideae (Bromeliaceae). <i>Flora Neotropica</i> 14(3): 1493-2142.
Évaluateurs & contributeurs (2)Expert
assessor
Contu, S., Romand-Monnier, F. & Chadburn, H.
evaluator
Scott, J.A.

Contu, S., Romand-Monnier, F. & Chadburn, H. 2013. Brewcaria hohenbergioides. The IUCN Red List of Threatened Species 2013: e.T44392892A44499561. 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

Bibliographie

Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (1)— redirigent vers cette page

  • Brewcaria hohenbergioides(L.B.Sm.) B.Holst

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