Map_thumbnail_large_font

Trithemis nigra

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA INSECTA ODONATA LIBELLULIDAE

Scientific Name: Trithemis nigra
Species Authority: Longfield, 1936

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii) ver 3.1
Year Published: 2010
Assessor/s: Clausnitzer, V.
Reviewer/s: Djikstra, K. D, Kipping, J., Schutte, K. (Odonata Red List Authority) & Allen, D. (Freshwater Biodiversity Unit)
Contributor/s:
Justification:
No new information has been obtained for this species since its assessment in 1996. The species is endemic to a small island (139 km²), at least half of which is deforested. It is known from several localities, but none from the type locality, "its potential extent of occurrence has a critical extent of a maximum of 50 km², the area of occupancy being much smaller. Although deforestation is probably limited at present, none of the area is protected and the habitat can be expected to deteriorate in the future. It is listed as Critically Endangered.
History:
2006 – Critically Endangered (IUCN 2006)
2006 – Critically Endangered
1996 – Critically Endangered
1996 – Critically Endangered (Baillie and Groombridge 1996)
1994 – Indeterminate (Groombridge 1994)
1990 – Indeterminate (IUCN 1990)
1988 – Indeterminate (IUCN Conservation Monitoring Centre 1988)
1986 – Indeterminate (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: This species is endemic to Sao Tome and Principe.
Countries:
Native:
Sao Tomé and Principe (Principe)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Current population size is unknown.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Probably found in and around rainforest streams, though not much information is available and more studies are needed.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Deforestation is a threat to this species.

Conservation Actions [top]

Conservation Actions: No precise information available but research into population numbers and range, biology and ecology, habitat status, and trends/monitoring of this species would be valuable.
Citation: Clausnitzer, V. 2010. Trithemis nigra. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided