Phaedranassa tunguraguae

– Endangered

Taxonomy

Kingdom:	PLANTAE
Phylum:	TRACHEOPHYTA
Class:	LILIOPSIDA
Order:	LILIALES
Family:	AMARYLLIDACEAE
Scientific Name:	Phaedranassa tunguraguae
Species Authority:	Ravenna

Assessment Information

Red List Category & Criteria:	EN B1ab(iii) ver 3.1 (2001)
Year Assessed:	2003
Assessor/s:	Oleas, N. & Pitman, N.
Evaluator/s:	Valencia, R., Pitman, N., Léon-Yánez, S. & Jørgensen, P.M. (Ecuador Plants Red List Authority)
Justification:	A terrestrial herb endemic to Ecuador. Despite intensive searches in 1998–1999, this species is still restricted to the Pastaza river valley in the province of Tungurahua. Subpopulations are found from the Bascún stream on the slopes of Tungurahua volcano to the Río Negro on the Baños-Puyo road. The species inhabits disturbed areas like roadsides, pastures and cliffs, where it forms clumps of fewer than 100 individuals. Some subpopulations have been affected by the widening of the Baños-Puyo road. Another potential threat is commercial exploitation as ornamental plants, though it is unknown if the bulbs sold internationally are wild or cultivated in origin. Not confirmed to occur in Ecuador's protected areas network, but potentially present in the high portion of the Parque Nacional Sangay. This species was listed as Rare in 1997. Habitat destruction is the only known threat to the species.

Geographic Range

Range Description:	Despite intensive searches in 1998-1999, this species is still restricted to the Pastaza river valley in the province of Tungurahua. Subpopulations are found from the Bascún stream on the slopes of Tungurahua volcano to the Río Negro on the Baños-Puyo road, where it forms clumps of fewer than 100 individuals.
Countries:	Native: Ecuador

Habitat and Ecology

Habitat and Ecology:

A terrestrial herb that inhabits disturbed areas like roadsides, pastures and cliffs.

System:

Terrestrial

List of Habitats:

1.9	Forest - Subtropical/Tropical Moist Montane
3.5	Shrubland - Subtropical/Tropical Dry

Threats

Threats:

Some subpopulations have been affected by the widening of the Baños-Puyo road. Another potential threat is commercial exploitation as ornamental plants.

List of Threats:

1	Habitat Loss/Degradation (human induced) (ongoing)
1.4.4	Habitat Loss/Degradation - Infrastructure development Transport (land/air) (ongoing)
3.5	Harvesting (hunting/gathering) - Cultural/scientific/leisure activities (ongoing)

Conservation Actions

Conservation Actions:

Not known to occur within any protected areas.

Bibliography

Bibliography:

Meerow, A.W. 1990. 202. Amaryllidaceae. In: G. Harling and L. Andersson (eds), Flora of Ecuador 41. University of Gotenborg; Riksmuseum, Pontificia Universidad Católica del Ecuador, Goteborg, Stockholm, Quito.

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.

Walter, K.S. and Gillett, H.J. (eds). 1998. 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. IUCN - The World Conservation Union, Gland, Switzerland and Cambridge, UK.

Citation:	Oleas, N. & Pitman, N. 2003. Phaedranassa tunguraguae. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 17 May 2008.
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