Cryptocoryne loeiensis
Bastm., T.Idei & N.Jacobsen
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cryptocoryne loeiensis.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
CR · En danger critiquecritères B1ab(iii,v)?Inconnue- Évaluation
- 2023 · v3.1
- Altitude
- 200 – 210 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There is no information available on population size or trend of this species. However, habitat decline due to factors such as over-grazing of the margins of the Mekong are inferred to be causing a continuing decline in mature individuals.
Menaces identifiées(3 menaces classées CMP-IUCN)
7_2_11Dams (size unknown)Rapid DeclinesWhole (>90%)Ongoing2_3_4Scale Unknown/UnrecordedSlow, Significant DeclinesWhole (>90%)Ongoing5_3_5Motivation Unknown/UnrecordedSlow, Significant DeclinesWhole (>90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
There is no information on direct threats, but the species is likely to be threatened by dam construction and other actions which modify the flow character of the Mekong River, as well as logging or clear-felling on the banks or floodplain of the river. It is also likely to be threatened by over-grazing during the dry season and is severely threatened by proposed dams on the River Mekong, only a small number of which could eradicate populations by stabilising water levels at a depth which would preclude flowering because Cryptocoryne species only flower when emersed.
Habitats préférentiels (classification IUCN)
5_1Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There is no conservation in place for this species. There is a need for assessment of trends in population and threats, combined with implementation of a monitoring plan. Critical areas of the margins of the Mekong should be protected.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection
Stress écologiques (6)Stresses Classification — IUCNExpert
1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_1Species mortality
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 (4)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 loensis</i>. Available at: <a href="https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/loe/loe.html">https://crypts.home.xs4all.nl/Cryptocoryne/Gallery/loe/loe.html</a>.
- Idei, T., Bastmeijer, J.D. and Jacobsen, N. 2017. Stories from the Mekong, part 2: The <i>Cryptocoryne</i> (Araceae) habitats in the Chiang Khan district, Loei province, Thailand. <i>Thai Forest Bulletin</i> 45(1): 58-78.
- Bastmeijer, J.D., Idei, T., Jacobsen, N., Ramsdal, A.M. and Sookchaloem, D. 2010. Notes on <i>Cryptocoryne</i> (Araceae) of Thailand, including a new species from Loei Province. <i>Thai Forest Bulletin (Botany)</i> 38: 170-183.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Lansdown, R.V.
evaluator
Jacobsen, N. & Bilz, M.
Lansdown, R.V. 2023. Cryptocoryne loeiensis. The IUCN Red List of Threatened Species 2023: e.T199683A197730971. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s