Aponogeton eggersii
Bogner & H.Bruggen
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Aponogeton eggersii.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B2ab(ii,iii,iv,v)↘Décroissante- Évaluation
- 2017 · v3.1
- Altitude
- 230 – 230 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There are two known subpopulations of this species. The most recent collection was made in 2000 from Anove River, near to, but outside the Mananara Nord National Park and Biosphere Reserve, and the other in 1991 within the protected area.(Madagascar Catalogue, 2016).
Menaces identifiées(6 menaces classées CMP-IUCN)
2_1_1Shifting agricultureOngoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Ongoing5_4_3Unintentional effects: (subsistence/small scale) [harvest]Ongoing6_3Work & other activitiesOngoing7_3Other ecosystem modificationsOngoing9_3_2Soil erosion, sedimentationOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
The species is threatened by secondary impacts resulting from degradation or destruction of surrounding terrestrial habitat due to shifting agriculture, logging and wood harvesting. These impacts include: loss of shade, fluctuation of temperatures, sedimentation, changed water quality, increased impacts from humans and grazing livestock. The species may also be threatened with destruction and disturbance resulting from fishing activities in the streams and rivers it inhabits.
Habitats préférentiels (classification IUCN)
5_1Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
One subpopulation of this species occurs in Mananara Nord National Park and Biosphere Reserve.
Actions de conservation (3)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection1_2Resource & habitat protection3_4_2Genome resource bank
Stress écologiques (16)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_3Indirect ecosystem effects2_1Species mortality2_1Species mortality2_1Species mortality2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance
Priorités de recherche (5)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology1_4Harvest, use & livelihoods1_5Threats1_6Actions
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Afrotropical
Systèmes (terrestre/eau douce/marin)
Freshwater (=Inland waters)
Formes de croissance
Forb or Herb
Références bibliographiques (3)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 14 September 2017).
- Madagascar Catalogue. 2016. Aponogeton eggersii Bogner & H. Bruggen. St. Louis, U.S.A. and Antananarivo, Madagascar Available at: <a href="http://tropicos.org/Name/50194008?projectid=17">http://tropicos.org/Name/50194008?projectid=17</a>.
- Bogner, J. & H. W. E. v. Bruggen. 2001. Aponogeton eggersii Bogner & H. Bruggen spec. nov. (Aponogetonaceae), eine neue Art aus Madagaskar. <i>Aqua Pl.</i> 26(2): 61-68.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Rakotonirina, N. & Ravololomanana, N.
evaluator
Letsara, R, Manjato, N., Phillipson, P. & Rabarimanarivo, M.
facilitators
Manjato, N. & Rabarimanarivo, M.
Rakotonirina, N. & Ravololomanana, N. 2017. Aponogeton eggersii. The IUCN Red List of Threatened Species 2017: e.T88495064A88495115. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s