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Ceradenia semiadnata 

Scope: Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Polypodiopsida Polypodiales Polypodiaceae

Scientific Name: Ceradenia semiadnata
Species Authority: (Hook.) L.E.Bishop

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Annotations:
Needs updating
Assessor(s): Navarrete, H. & Pitman, N.
Reviewer(s): Valencia, R., Pitman, N., Léon-Yánez, S., Jørgensen, P.M. (Ecuador Plants Red List Authority) & Jermy, C., Ranker, T. (Pteridophyte Red List Authority)
Justification:
An epiphytic fern endemic to Ecuador, where it is known from two collections made more than a century apart. In the middle of the nineteenth century, it was collected by W. Jameson at an unknown locale in Cañar province, at 4,000 m elevation. In 1973, it was collected on Volcán Chiles, in Carchi province, also at 4,000 m elevation. Not know to occur in Ecuador’s protected areas network, but may occur in protected areas found at these elevations. No specimens of this species are housed in Ecuadorian museums. Apart from habitat destruction, no other threats are known.

Geographic Range [top]

Range Description:Known only from two collections made more than a century apart. In the middle of the nineteenth century, it was collected at an unknown locale in Cañar province. In 1973, it was collected on Volcán Chiles, in Carchi province. Endemic to Ecuador.
Countries occurrence:
Native:
Ecuador
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:Was found in both cases in high Andean forest (3,500–4,000 m).
Systems:Terrestrial

Threats [top]

Major Threat(s): Habitat destruction is the main threat.

Conservation Actions [top]

Conservation Actions: Not know to occur in Ecuador’s protected areas network, but may occur in protected areas found at high elevations.

Classifications [top]

1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.4. Scale Unknown/Unrecorded
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.4. Scale Unknown/Unrecorded
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

Bibliography [top]

Hooker, W.J. 1854. Icones Plantarum 10: t. 948.

IUCN. 2003. 2003 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 18 November 2003.

Valencia, R., Pitman, N., León-Yánez, S. and Jørgensen, P.M. (eds). 2000. Libro Rojo de las Plantas Endémicas del Ecuador 2000. Publicaciones del Herbario QCA, Ponticicia Universidad Católica del Ecuador, Quito.


Citation: Navarrete, H. & Pitman, N. 2003. Ceradenia semiadnata. The IUCN Red List of Threatened Species 2003: e.T43717A10823365. . Downloaded on 03 December 2016.
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