Cryptocoryne cognata
Schott
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cryptocoryne cognata.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères B1ab(ii,iii)+2ab(ii,iii)?Inconnue- Évaluation
- 2023 · v3.1
- Altitude
- 0 – 200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There is little information on the condition of subpopulations, except at one site, where a healthy population was found along 500 m of the stream.
Menaces identifiées(8 menaces classées CMP-IUCN)
5_2_1Intentional use (species is the target)UnknownUnknownOngoing12_1Other threatSlow, Significant DeclinesMajority (50-90%)Ongoing9_1_1SewageSlow, Significant DeclinesMajority (50-90%)Ongoing9_3_1Nutrient loadsSlow, Significant DeclinesMajority (50-90%)Ongoing9_3_2Soil erosion, sedimentationSlow, Significant DeclinesMajority (50-90%)Ongoing1_2Commercial & industrial areasVery Rapid DeclinesMajority (50-90%)Ongoing1_3Tourism & recreation areasVery Rapid DeclinesMajority (50-90%)Ongoing3_2Mining & quarryingVery Rapid DeclinesMajority (50-90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Populations of this species are threatened by industrial development, construction of power plants, mining and tourist development, as well as by factors which affect all flowing water systems in the region, such as increasing turbidity and water pollution. Some water bodies supporting this species show high phosphate levels due to detergents and fertiliser run-off, leading to dense algal growth.
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 for this species. There is a need for detailed surveys of population size, threats, combined with monitoring of population and habitat trends.
Actions de conservation (1)Conservation Actions Classification Scheme — IUCNExpert
1_2Resource & habitat protection
Stress écologiques (18)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_3Indirect ecosystem effects2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_1Species mortality2_2Species disturbance
Usage & commerce (2)Use & Trade — IUCNExpert
13Pets/display animals, horticultureinternational16Establishing ex-situ production *international
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats3_1Population trends3_4Habitat 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 (12)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 cognata</i>. Available at: <a href="https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/cog/cog.html">https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/cog/cog.html</a>.
- Kasselmann, C. 2020. <i>Aquarium Plants</i>. Aquarium Plants Publisher, Teltow.
- Sasikala, K., Vajravelu, E. and Daniel, P. 2019. <i>Fascicles of Flora of India, Fascicle 29, Araceae</i>. Botanical Survey of India, Kolkata.
- Kasselmann, C. 2016. <i>Cryptocoryne cognata</i> Schott – zur Verbreitung und Ökologie einer indischen Cryptocoryne. <i>Aqua planta</i> 41(3): 90-103.
- Kambhar, S.V., M.R. Bhise, M.M. Naik, A.L. Parab, K.H. Patil, A.P. Tawade, V.K. Patil, A.D. Rane, S.S. Narkhede and S.G. Bhave. 2015. Additional information on the threatened <i>Cryptocoryne cognata</i> Schott (Araceae): A need for reassessment of the IUCN Red List status. <i>Journal of Threatened Taxa</i> 7(15): 8302-8304.
- Gaikwad, S., Gore, R., Garad, K. and Gaikwad, S. 2014. Endemic flowering plants of northern Western Ghats (Sahyadri Ranges) of India: A checklist. <i>Check List</i> 10(3): 461-472. https://doi.org/10.15560/10.3.461
- Joshi, V. C., & Janarthanam, M. K. 2004. The diversity of life‐form type, habitat preference and phenology of the endemics in the Goa region of the Western Ghats, India. <i>Journal of Biogeography</i> 3(8): 1227-1237.
- Banerjee, L.K., Rao, T.A., Sastry, A.R.K. and Ghosh, D. 2002. <i>Diversity of coastal plant communities in India</i>. Botanical Survey of India, Kolkata.
- Mishra, D.K. and Singh, N.P. 2001. <i>Endemic and threatened flowering plants of Maharashtra</i>. Botanical Survey of India, Calcutta.
- Cook, C.D.K. 1996. <i>Aquatic and Wetland Plants of India</i>. Oxford University Press, Oxford.
- Patil, K.S., Yadav, S.R., Dixit, G.B. and Bogner, J. 1992. Eine lang verschollene Cryptocoryne aus Indien: <i>Cryptocoryne cognata</i> Schott (Araceae). <i>Aqua-Planta</i> 2(92): 59-65.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Lansdown, R.V.
contributor
Gupta, A.K. & Kumar, B.
evaluator
Jacobsen, N., Watve, A. & Wongso, S.
Lansdown, R.V. 2023. Cryptocoryne cognata. The IUCN Red List of Threatened Species 2023: e.T168904A197729585. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s