Thamnobryum angustifolium
| Kingdom |
Phylum |
Class |
Order |
Family |
| PLANTAE |
BRYOPHYTA |
BRYOPSIDA |
HYPNALES |
NECKERACEAE |
| Scientific Name: |
Thamnobryum angustifolium |
| Species Authority: |
(Holt) Crundw. |
Assessment Information
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| Red List Category & Criteria: |
Critically Endangered
B1+2c
ver 2.3
|
| Year Published: |
2000 |
| Annotations: |
Needs updating
|
| Assessor/s: |
Bryophyte Specialist Group |
| Reviewer/s: |
Hallingbäck, T., Hodgetts, N., Geissler, P. & Tan, B. (Bryophyte Red List Authority) |
| Contributor/s: |
|
Justification:
The known area of occupancy is less than 10 km² and the species is subject to a number of threats and potential threats. The number of old herbarium specimens clearly shows that it has declined. It therefore meets the IUCN criteria for Critically Endangered based on the small area, the only locality and the decline.
|
Geographic Range
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Population
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| Population Trend: |
Unknown
|
Habitat and Ecology
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| Habitat and Ecology: |
Shaded cliff beside a calcareous spring or on limestone in a stream.
|
| Systems: |
Terrestrial; Freshwater |
| Major Threat(s): |
This species is sensitive to disturbance from a possible new footpath, rock-climbers and cavers, collection by bryologists. Any pollution of the spring in which it grows may also threaten it. Possibly the greatest threat is desiccation caused by extensive periods of drought when the spring does not flow.
|
Conservation Actions
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| Conservation Actions: |
The only locality is in a nature reserve.
|
