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Cotula moseleyi

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA ASTERALES COMPOSITAE

Scientific Name: Cotula moseleyi
Species Authority: Hemsl.

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2003
Assessor/s: Jakubowsky, G. (University of Vienna, Institute of Botany)
Reviewer/s: Cronk, Q. & Cairns-Wicks, R. (South Atlantic Island Plants Red List Authority)
Contributor/s:
Justification:
The species is common in suitable habitats on Nightingale Island; this is treated as a single location due to the small size of the island (c. 4 km²). It was collected only once on Inaccessible Island: Hall H. N. 82, 7 November 1982, on the plateau above Blenden Hall (BM) and seen there recently by Peter Ryan (pers. comm.). Since it wasn’t found on Inaccessible on earlier occasions it is possibly rare and/or restricted to a small area; the ecology of the species makes it likely that it occurs only on the western edge of Inaccessible in low-growing wet heath and possibly in penguin rookeries in Spartina arundinacea tussock. The extent of occurrence is less than 18 km² and the area of occupancy is likely to be less than 10 km². Since the species occurs only on two isolated locations the population is considered here to be severely fragmented.

Geographic Range [top]

Range Description: Endemic to Tristan da Cunha (Inaccessible Island, Nightingale Island). Extent of occurrence: <16 km². Area of occupancy: <10 km². Two subpopulations on Nightingale and Inaccessible. Common in suitable habitats on Nightingale Island, likely to be rare on Inaccessible.
Countries:
Native:
Saint Helena, Ascension and Tristan da Cunha (Tristan da Cunha)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Occurs in disturbed and open habitats, e.g., around albatross nests, in penguin rookeries, on paths, also in Spartina arundinacea tussock, open patches in Phylica woodland, and sea cliffs.
Systems: Terrestrial

Threats [top]

Major Threat(s): Vulnerable due to the small area of occupancy with only two subpopulations. Potential threats are fire and introduced species. On Nightingale C. moseleyi shares its habitats with the introduced C. australis, but C. moseleyi is more common and no hybrids were observed.

Conservation Actions [top]

Conservation Actions: Inaccessible Island is a Nature Reserve.
Citation: Jakubowsky, G. (University of Vienna, Institute of Botany) 2003. Cotula moseleyi. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 19 May 2013.
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