Mesocnemis singularis 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Platycnemididae

Scientific Name: Mesocnemis singularis
Species Authority: Karsch, 1891
Regional Assessments:
Common Name(s):
English Common Riverjack, Savanna Brook-damsel, Savanna Stream-damsel

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2009-05-01
Assessor(s): Clausnitzer, V., Suhling, F. & Dijkstra, K.-D.B.
Reviewer(s): Dijkstra, K.-D.B., Clausnitzer, V., Suhling, F., Samways, M., Samraoui, B., Boudot, J.P., Kipping, J. (Odonata Red List Authority) & Allen, D. (IUCN Freshwater Biodiversity Unit)
The species is assessed as Least Concern in view of its wide distribution, and because it is unlikely to be declining fast enough to qualify for listing in a threatened category.

In northeastern Africa, records from Sudan (Tsuda) and Ethiopia need confirmation. For the time being listed as Data Deficient in this region.
Previously published Red List assessments:
2006 Least Concern (LC)

Geographic Range [top]

Range Description: The species is widespread in sub-Saharan Africa. The record from Gambia is unlikely, and that for Ethiopia is probably a georeference error.

In central Africa, it is known from Angola, Cameroon, Democratic Republic of Congo, Gabon, Zambia, for Equatorial Guinea and Congo assumed.

In eastern Africa, it has been recorded in Kenya, Tanzania, Uganda and Burundi, where it is common and widespread. It is assumed to occur also in Malawi.

Records from the northeastern Africa region (Tsuda from Sudan and Ethiopia) have not been confirmed. For the time being, it is listed as Data Deficient in the region.

In southern Africa, this species is widespread in large perennial rivers in the region, through the Orange River basin to the Western Cape. It is not found in the arid southwest or at the Cape.

In western Africa, the species is known from Sierra Leone to Nigeria.
Countries occurrence:
Angola (Angola); Benin; Botswana; Cameroon; Congo, The Democratic Republic of the; Côte d'Ivoire; Gabon; Ghana; Kenya; Liberia; Malawi; Mozambique; Namibia; Nigeria; Sierra Leone; South Africa; Tanzania, United Republic of; Togo; Uganda; Zambia; Zimbabwe
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Population size is unknown.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Sunny rivers and streams in savannah, bush or forest, preferably with large rocks. Also inhabits rocky shores of large lakes.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Water pollution and agriculture are considered to be potential threat to the species.

Conservation Actions [top]

Conservation Actions: Monitoring of this species is needed.

Citation: Clausnitzer, V., Suhling, F. & Dijkstra, K.-D.B. 2010. Mesocnemis singularis. The IUCN Red List of Threatened Species 2010: e.T59912A12145335. . Downloaded on 26 November 2015.
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