Bordéréa de Chouard

Dioscorea chouardiiGaussen

Plante

CRLR Monde (IUCN)

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

Graphe en cours d’indexation

Calcul du tissu écologique de Dioscorea chouardii.

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

Liste rouge IUCN

CR · En danger critiquecritères B2ab(iii,v)→Stable

Évaluation complète

Évaluation: 2011 · v3.1
Altitude: 730 – 1100 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

Total population is estimated in between 3,800-5,200 individuals (Alcántara et al. 2007). Research developed over more than ten years have revealed that one third of the reproductive individuals are female specimens and two thirds are male specimens. Recruitment is low but adults present a extremely high longevity, of even more than 300 years. Its population is distributed into two subpopulations.
Population is considered stable but some mature individuals have been lost in the last decades due to public works.

Menaces identifiées(2 menaces classées CMP-IUCN)

4_1
Roads & railroads
Ongoing
6_1
Recreational activities
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

The main threat is the degradation of its habitat, due to the extension of the road that crosses the population and by tourism and rock climbing.

Habitats préférentiels (classification IUCN)

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

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

Borderea chouardii is listed on Annex II of the Habitat Directive. It is included as species "En Peligro de extinción" in the Spanish catalogue of threatened species and in the regional Aragonese catalogue of threatened species, and a legal Recovery Plan was passed in 1994, being the first European legal plan approved for a plant. It is listed as Critically Endangered (CR) B2ab(v) in the Spanish Red List (Moreno 2008).

It occurs within the proposed SCI Congosto de Sopeira. Its area of distribution has been removed from the climbing guide of the surroundings of Embalse de Escales. Plantations have been introduced and seeds are stored in germplasm banks. Ex situ cultivation has been developed, as well as population reinforcement measures. These actions were unsuccessful.

Benign introduction has been developed with results a priori favourable. Population reinforcement should be developed.

Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert

3_3_1Reintroduction
3_3_2Benign introduction

Stress écologiques (4)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_3Life history & ecology
2_1Species Action/Recovery Plan
3_1Population trends

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

Royaumes biogéographiques

Palearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or HerbGeophyte

Références bibliographiques (4)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).
Moreno, J.C. (coord.). 2008. Lista Roja 2008 de la Flora Vascular Española. Dirección General de Medio Natural y Política Forestal (Ministerio de Medio Ambiente, y Medio Rural y Marino, y Sociedad Española de Biología de la Conservación de Plantas), Madrid.
Alcántara, M., Goñi, M., Guzmán, D. and Puente, J. 2007. Catálogo de Especies Amenazadas de Aragón. Flora. Departamento de Medio Ambiente del Gobierno de Aragón, Huesca.
Goñi, D. and Guzmán, D. 2004. Borderea chouardii. In: A. Bañares, G. Blanca, J. Güemes, J.C. Moreno and S. Ortiz (eds), Atlas y Libro Rojo de la Flora Vascular Amenazada de España, pp. 150-151. Dirección General de la Conservación de la Naturaleza, Madrid.

Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Goñi Martínez, D. & Guzmán Otano, D.

contributor

Peraza Zurita, M.D.

evaluator

Moreno Saiz, J.C., Peraza Zurita, M.D. & Bilz, M.

Goñi Martínez, D. & Guzmán Otano, D. 2011. Borderea chouardii. The IUCN Red List of Threatened Species 2011: e.T162110A5540643. Accessed on 05 May 2026.