Cryptocoryne waseri
Kettner
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cryptocoryne waseri.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
CR · En danger critiquecritères B1ab(iii)+2ab(iii)↘Décroissante- Évaluation
- 2023 · v3.1
- Altitude
- 100 – 100 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The only known population of this species is considered to have been destroyed as a result of habitat loss.
Menaces identifiées(4 menaces classées CMP-IUCN)
9_3_1Nutrient loadsSlow, Significant DeclinesWhole (>90%)Ongoing9_3_2Soil erosion, sedimentationSlow, Significant DeclinesWhole (>90%)Ongoing1_1Housing & urban areasVery Rapid DeclinesWhole (>90%)Ongoing2_1_2Small-holder farmingVery Rapid DeclinesWhole (>90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The habitats and sites where this species occurs are threatened by factors which affect all plants occurring in flowing water bodies in the region, notably forest clearance, urbanisation, agricultural intensification and the secondary effects of these factors, particularly increased turbidity, pollution and casual habitat degradation.
Habitats préférentiels (classification IUCN)
5_1Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species has not been found in the wild since its discovery in 1990. It was classed as DD by Yakandawala (2012). It is possible that there are extant subpopulations and there is an urgent need for surveys of suitable habitat in the region to attempt to locate extant subpopulations.
Stress écologiques (8)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_4Harvest, use & livelihoods1_5Threats1_6Actions3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Freshwater (=Inland waters)
Formes de croissance
Forb or HerbHydrophyte
Références bibliographiques (5)Sources scientifiques de l'évaluation IUCNExpert
- POWO. 2023. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available at: <a href="http://powo.science.kew.org/">http://powo.science.kew.org/</a>. (Accessed: 2023).
- Tropicos. 2023. tropicos.org. Saint Louis, Missouri. Missouri Botanical Garden. Available at: <a href="https://www.tropicos.org/">https://www.tropicos.org/</a>.
- 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).
- Bastmeijer, J.D., Babics, P. and Kettner, C. 2012. Eine neue <i>Cryptocoryne</i>-Art (Araceae) aus Sri Lanka (Ceylon). <i>Aqua Plants</i> 37(2): 50-59.
- Bastmeijer, J.D. 2012. Crypts pages: <i>Cryptocoryne waseri</i>. Available at: <a href="https://www.cryptocoryneworld.org/c_waseri.php">https://www.cryptocoryneworld.org/c_waseri.php</a>.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Lansdown, R.V.
evaluator
Yakandawala, D.M.D. & Jacobsen, N.
Lansdown, R.V. 2023. Cryptocoryne waseri. The IUCN Red List of Threatened Species 2023: e.T175657596A175657968. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s