Wiesneria triandra
(Dalzell) Micheli
Pays · région · aire protégée · écorégion · biome
Pas d'interactions documentées pour cette espèce.
Liste rouge IUCN
LC · Préoccupation mineure?Inconnue- Évaluation
- 2011 · v3.1
- Altitude
- 20 – 100 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
The reference cited includes autecological studies of this species from around four sites. Population studies are not available from any of the other localities in Goa, Karnataka or Maharashtra.
Menaces identifiées(8 menaces classées CMP-IUCN)
3_2Mining & quarryingRapid DeclinesMajority (50-90%)Ongoing1_1Housing & urban areasCausing/Could cause fluctuationsMinority (<50%)Ongoing1_2Commercial & industrial areasCausing/Could cause fluctuationsUnknownOngoing4_1Roads & railroadsCausing/Could cause fluctuationsMinority (<50%)Ongoing1_3Tourism & recreation areasNegligible declinesUnknownOngoing7_2_1Abstraction of surface water (domestic use)UnknownUnknownFuture9_3_2Soil erosion, sedimentationUnknownUnknownOngoing9_1_1SewageSlow, Significant DeclinesMajority (50-90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The main threat to the primary habitats viz temporary pools on lateritic plateuas is conversion of land for industrial/ residential or agriculture which is going on at rapid scale throughout the region. However, ability of this species to grow in secondary man-made waterlogged habitats reduces the chances of rapid decline. However, these are not considered as major threats.
Habitats préférentiels (classification IUCN)
6Rocky areas (eg. inland cliffs, mountain peaks)★14_1Artificial/Terrestrial - Arable Land14_2Artificial/Terrestrial - Pastureland15_2Artificial/Aquatic - Ponds (below 8ha)5_8Wetlands (inland) - Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
No major conservation measures have been taken for the plant. Few experimental cultivation trials have been made and they were successful. Although the plant is thriving well in secondary habitats, it is necessary to protect its primary habitat, temporary pools on ferricretes (rocky lateritic outcrops) which are severely affected by biotic pressures.
Actions de conservation (10)Conservation Actions Classification Scheme — IUCNExpert
1_2Resource & habitat protection2_1Site/area management2_2Invasive/problematic species control2_3Habitat & natural process restoration3_3_1Reintroduction3_3_2Benign introduction3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank4_3Awareness & communications5_1_3Sub-national level
Stress écologiques (20)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_3Indirect ecosystem effects2_1Species mortality2_2Species disturbance2_2Species disturbance2_3_4Loss of pollinator2_3_8Other
Priorités de recherche (8)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_5Threats1_6Actions2_1Species Action/Recovery Plan2_2Area-based Management Plan3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
AfrotropicalIndomalayan
Systèmes (terrestre/eau douce/marin)
Freshwater (=Inland waters)
Formes de croissance
AnnualForb or HerbHydrophyte
Références bibliographiques (3)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.1). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 30 June 2017).
- Mishra, D.K. and Singh, N.P. 2001. <i>Endemic and threatened flowering plants of Maharashtra</i>. Botanical Survey of India, Calcutta.
- Camenisch M. and Cook, C.D.K. 1996. <i>Wiesneria triandra</i> (Dalzell) Micheli (Alismataceae): a rare and unusual south Indian endemic. <i>Aquatic Botany</i> 55: 115-131.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Watve, A.
contributor
Molur, S.
evaluator
Narasimhan, D., Rao, M.L.V., Ravikumar, K., Juffe Bignoli, D. & Kumar, V.S.
Watve, A. 2011. Wiesneria triandra. The IUCN Red List of Threatened Species 2011: e.T175205A7121871. Accessed on 05 May 2026.
Répartition mondiale
Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.
Consulter sur les bases externes
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (1)— redirigent vers cette page
- Sagittaria triandraDalzell
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).