Costus nitidus
Maas
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Costus nitidus.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères C1↘Décroissante- Évaluation
- 2014 · v3.1
- Altitude
- 50 – 800 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species is widespread but not common. There have been only 17 recorded collections. The area of occupancy has been calculated with a five km square around each of these collection sites, totalling 275 km2. This assessor has been to two of the three areas where there have been recorded collections, and plants from this species or with strong affinity to this species have been found in both areas, but they were few and far between. It is reasonable to estimate no more than three mature individuals per km2, suggesting a total population size of 825 individuals.
The central area around Turrialba where the type collection was made is now largely deforested and converted to coffee fields. The collection records in Panama were mostly at lower altitudes between Almirante and Changuinola where deforestation is visible on Google Earth satellite images. There is also a hydroelectric project under construction on the Rio Bonyic (also known as Bonjic) which could adversely affect the Panamanian subpopulation.
Based on these considerations it is reasonable to expect further declines in population of 10% per generation length (8 years) unless measures are undertaken to protect this species.
The central area around Turrialba where the type collection was made is now largely deforested and converted to coffee fields. The collection records in Panama were mostly at lower altitudes between Almirante and Changuinola where deforestation is visible on Google Earth satellite images. There is also a hydroelectric project under construction on the Rio Bonyic (also known as Bonjic) which could adversely affect the Panamanian subpopulation.
Based on these considerations it is reasonable to expect further declines in population of 10% per generation length (8 years) unless measures are undertaken to protect this species.
Menaces identifiées(1 menace classée CMP-IUCN)
2_1_3Agro-industry farmingSlow, Significant DeclinesMajority (50-90%)Ongoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is threatened by continued deforestation for agriculture in the Turrialba area and the lower altitudes in its AOO in Panama. The coffee fields are clearly visible via Google Earth satellite images in the Turrialba area where the type collection was made. The hydroelectric project on the Rio Bonyic and planned electric transmission lines into neighboring Costa Rica may further threaten this species in the southern part of its range.
Habitats préférentiels (classification IUCN)
1_6Forest - Subtropical/Tropical Moist Lowland★1_9Forest - Subtropical/Tropical Moist Montane
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
There are subpopulations of this species located in two protected areas, the Monteverde area "Bosque de los Ninos" near Pocosol and the Costa Rican Reserva Hitoy-Cerere. Plants in these areas should be monitored and managed to ensure the populations remain stable. The species is rare enough however that it should also be conserved ex situ in a seed bank and in botanical gardens.
Actions de conservation (1)Conservation Actions Classification Scheme — IUCNExpert
3_4_2Genome resource bank
Stress écologiques (2)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation
Priorités de recherche (3)Research Needed Classification — IUCNExpert
2_2Area-based Management Plan3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Neotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Geophyte
Références bibliographiques (3)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 12 June 2014).
- Maas, P.J.M. 1977. <i>Flora Neotropica Monograph No. 18 Renealmia (Zingiberaceae - Zingiberoideae), Costoideae (Additions) (Zingiberaceae)</i>. New York Botanical Garden, New York.
- Maas, P.J.M. 1972. <i>Flora Neotropica Monograph No. 8, Costoideae (Zingiberaceae)</i>. Hafner Publishing Company, Inc., New York.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Skinner, D.
evaluator
Magos Brehm, J.
Skinner, D. 2014. Costus nitidus. The IUCN Red List of Threatened Species 2014: e.T56347808A56353108. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s