- Scientific name
- Sticta alpinotropica
- Author
- Aptroot
- Common names
-
- IUCN Specialist Group
Lichens
- Kingdom
- Fungi
- Phylum
- Ascomycota
- Class
- Lecanoromycetes
- Order
- Peltigerales
- Family
- Lobariaceae
- Assessment status
-
Published
- Assessment date
- 2017-08-30
- IUCN Red List Category
-
EN
- IUCN Red List Criteria
-
D
- Assessors
- Thor, G. & Aptroot, A.
- Reviewers
- Scheidegger, C.
Assessment Notes
Justification
This species grows only in the summit area of a very high isolated mountain in the tropics. If the area would become subject to global warming, its natural niche (an oro-alpine situation) would vanish and the species would have no place to retreat to, and will be soon replaced by species that are adapted to milder climate in the unlikely case that it manages to adapt to a milder climate.
Criterion A does not apply.
Criterion B does not apply.
Criterion C does not apply.
Criterion D: Estimated population size acccording to the area occupied area is less than 250 individuals. So it can be assessed as Endangered under criterion D.
Geographic range
Confined to the summit area of Mount Wilhelm, an isolated high mountain almost on the equator in Papua New Guinea. Grows at an altitude of ca. 4,200-4,300 m.
Population and Trends
It occurs in loose and dispersed stands, the total area of occupied by this species of the population is less than a few dozen square meters. The population is small and comprises fewer than 250 mature thalli.
Population Trend: unknown
Habitat and Ecology
Grows on bare rock, an unusual substrate for this genus. The species here fills the empty niche of the family Umbilicariaceae, which is absent from the region.
Threats
This species grows only in the summit area of a very high isolated mountain in the tropics. If the area would become subject to global warming, its natural niche (an oro-alpine situation) would vanish and the species would have no place to retreat to, and will be soon replaced by species that are adapted to milder climate in the unlikely case that it manages to adapt to a milder climate.
Conservation Actions
Reduce man’s impact on the climate that leads to global warming.
Source and Citation
Thor, G. & Aptroot, A. 2017. Sticta alpinotropica. The IUCN Red List of Threatened Species 2017: e.T71670425A71670636.
https://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T71670425A71670636.en .Accessed on 7 February 2025