Costularia xipholepis

(Baker) Henriette & Senterre

Plante

ENLR Monde (IUCN)

Filtrer le graphe par contexte spatialPays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Costularia xipholepis.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

EN · En dangercritères B1ab(iii)+2ab(iii)→Stable

Évaluation complète

Évaluation: 2019 · v3.1
Altitude: 400 – 821 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Following Henriette et al. (2015), Costularia xipholepis is rare and highly localised. Three sub-populations representing three locations, 1.4 to 2.4 km apart, separated from each other by unsuitable habitat (i.e. wet forests) are within the Morne Seychellois National Park and appear healthy, with limited risks from invasive species. The total number of mature individuals is unknown but probably around a thousand for these three sub-populations (Henriette et al. 2015). The two newly discovered populations, at Mont Sébert and at Glacis Sarcelles are not well known, but the Mont Sébert one is about the same size as the one of Congo Rouge (small), while the Glacis Sarcelles population is comparable to the Copolia one.

Menaces identifiées(1 menace classée CMP-IUCN)

11_1
Habitat shifting & alteration
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

There is a projected decline of the quality of the habitat as a result of climate change (Henriette et al. 2015).

Habitats préférentiels (classification IUCN)

6Rocky areas (eg. inland cliffs, mountain peaks)★

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

The species is occurs in the Morne Seychellois National Park.

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Graminoid

Références bibliographiques (8)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-3. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 10 December 2019).
Larridon, I., Bauters, K., Semmouri, I.,Viljoen, J.-A., Prychid, C.J., Muasya, A.M., Bruhl, J.J., Wilson, K.L., Senterre, B. and Goetghebeur, P. 2018. Molecular phylogenetics of the genus Costularia (Schoeneae, Cyperaceae) reveals multiple distinct evolutionary lineages. Molecular Phylogenetics and Evolution 126: 196-209.
Larridon, I., Govaerts, R. and Goetghebeur, P. 2017. (2554) Proposal to conserve the name Schoenus hornei (Cyperaceae) with a conserved type. Taxon 66: 1225-1226.
Henriette, E., Larridon, I., Morel, C., Goetghbeur, P. and Senterre, B. 2015. Revision of the genus Costularia (Cyperaceae: Schoeneae) for the flora of the Seychelles, including the rediscovery and resurrection of a rare endemic species. Phytotaxa 231(1): 31-41.
Senterre B. and Wagner M. 2014. Mapping Seychelles habitat-types on Mahé, Praslin, Silhouette, La Digue and Curieuse. Government of Seychelles, United Nations Development Programme, Victoria, Seychelles.
Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. Zookeys 150: 117–126.
Senterre, B. 2011. On the forest types of the Seychelles. Kapisen 12: 5-7.
Senterre, B., Gerlach, J., Mougal, J. and Matatiken, D.E. 2009. Old growth mature forest types and their floristic composition along the altitudinal gradient on Silhouette Island (Seychelles) - the telescoping effect on a continental mid-oceanic island. Phytocoenologia 39: 157-174.

Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Larridon, I., Henriette, E. & Senterre, B.

evaluator

Simpson, D.A.

facilitators

Bachman, S. & Clarkson, J.

institutions

Royal Botanic Gardens, Kew

Larridon, I., Henriette, E. & Senterre, B. 2019. Costularia xipholepis. The IUCN Red List of Threatened Species 2019: e.T130617721A130617732. Accessed on 05 May 2026.