Cryptocoryne villosa
N.Jacobsen
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cryptocoryne villosa.
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
- 2023 · v3.1
- Altitude
- 65 – 115 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There is no information on the population size of this species, however, the population trend is declining due to habitat destruction, and a continuing decline in the number of mature individuals is inferred. One of the known subpopulations has been lost in the last 40 years and all remaining subpopulations are severely threatened by the direct and secondary effects of forest clearance, and there is the potential for a continuing decline in the number of subpopulations.
Menaces identifiées(6 menaces classées CMP-IUCN)
5_2_1Intentional use (species is the target)UnknownUnknownOngoing9_3_1Nutrient loadsSlow, Significant DeclinesMajority (50-90%)Ongoing9_3_2Soil erosion, sedimentationSlow, Significant DeclinesMajority (50-90%)Ongoing1_1Housing & urban areasVery Rapid DeclinesMajority (50-90%)Ongoing2_1_2Small-holder farmingVery Rapid DeclinesMajority (50-90%)Ongoing2_1_3Agro-industry farmingVery Rapid DeclinesMajority (50-90%)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
There are no conservation actions in place specifically for this species and it is not known from any protected areas. There is an urgent need to survey all known subpopulations to derive an up-to-date assessment of the conservation status of known subpopulations.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection
Stress écologiques (11)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats3_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 (2)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).
- Bastmeijer, J.D. 2020. Crypts pages: <i>Cryptocoryne villosa</i>. Available at: <a href="https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/vil/vil.html">https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/vil/vil.html</a>.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Lansdown, R.V.
evaluator
Jacobsen, N. & Wongso, S.
Lansdown, R.V. 2023. Cryptocoryne villosa. The IUCN Red List of Threatened Species 2023: e.T175657508A175657527. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s