The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T59823A12069785
Brachythemis wilsoni, Wilson's Groundling
Assessment by: Clausnitzer, V., Kipping, J. & Dijkstra, K.-D.B.
View on www.iucnredlist.org
Citation: Clausnitzer, V., Kipping, J. & Dijkstra, K.-D.B. 2010. Brachythemis wilsoni. The IUCN Red List
of Threatened Species 2010: e.T59823A12069785. http://dx.doi.org/10.2305/IUCN.UK.20103.RLTS.T59823A12069785.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Taxon Name: Brachythemis wilsoni Pinhey, 1952
Regional Assessments:
• Western Africa
• Southern Africa
• Eastern Africa
• Central Africa
Common Name(s):
• English:
Wilson's Groundling
Assessment Information
Red List Category & Criteria:
Least Concern ver 3.1
Year Published:
2010
Date Assessed:
May 1, 2009
Justification:
This is a widespread species with no known major widespread threats and that is unlikely to be declining
fast enough to qualify for listing in a threatened category. It is assessed as Least Concern.
Previously Published Red List Assessments
2009 – Least Concern (LC)
2006 – Least Concern (LC)
Geographic Range
Range Description:
The species has been recorded from Sudan to Botswana and Nigeria. It is much scarcer than other
Brachythemis. Principally, it is found in the savannah belt, with records from Bukina Faso, Cote d'Ivoire,
Togo, Nigeria, Sudan, Democratic Republic of Congo and Uganda. Its presence in Botswana is isolated
but confirmed. Also known from a narrow band across the southern Sahel, with an isolated population
in the Okavango, which requires further investigation.
In central Africa, it is recorded from the Democratic Republic of Congo, Cameroon, Central African
Republic, and assumed from Congo.
In eastern Africa, it is present in Kenya, Tanzania, Uganda (Laropi, West Nile), Malawi and Burundi.
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
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In northeastern Africa, the species is listed by Tsuda for Sudan, although this record needs confirmation.
Occurrence in northern Kenya is likely to be valid too.
In southern Africa, this species is only known from the Okavango Delta, Botswana. This population is far
from other populations outside the region and there may be some taxonomic investigation required to
determine whether this is a separate species.
In western Africa, the species is known from Burkina Faso, Cote d'Ivoire, Togo and Nigeria.
Country Occurrence:
Native: Botswana; Burkina Faso; Congo, The Democratic Republic of the; Côte d'Ivoire; Nigeria; South
Sudan; Sudan; Togo; Uganda
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
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Distribution Map
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
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Population
Population size and trends are unknown.
Current Population Trend: Unknown
Habitat and Ecology (see Appendix for additional information)
Swampy streams and rivers in bush (Pinhey 1976; Kipping, pers. comm.).
Systems: Terrestrial, Freshwater
Threats (see Appendix for additional information)
Potentially drainage and destruction of swampy habitats due to agriculture and water pollution are
major threats to the species.
Conservation Actions (see Appendix for additional information)
Three records are from within wildlife management areas, but outside National Park areas. Only one
record falls outside the management area. More research is needed to gather data on taxonomy, range,
population status, and threats.
Credits
Assessor(s):
Clausnitzer, V., Kipping, J. & 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 IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
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Bibliography
Dijkstra, K.-D.B. and Clausnitzer, V. 2005. An annotated checklist of the dragonflies (Odonata) of eastern
Africa, with critical lists for Ethiopia, Kenya, Malawi, Tanzania and Uganda, new records, taxonomic
notes and descriptions of new species. in prep.
IUCN. 2006. 2006 IUCN Red List of Threatened Species. Gland, Switzerland and Cambridge, UK Available
at: www.iucnredlist.org. (Accessed: 05 June).
IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org.
(Accessed: 2 September 2010).
Kipping, J. 2006. The Odonata of Botswana - an annotated checklist. Cimbebasia Memoirs 5: In press.
Pinhey, E. 1961. A survey of the dragonflies of Eastern Africa. British Museum (Natural History), London.
Pinhey, E. 1976. Dragonflies (Odonata) of Botswana, with ecological notes. Occasional papers of the
national Museums and Monuments of Rhodesia, Series B 5: 524-601.
Citation
Clausnitzer, V., Kipping, J. & Dijkstra, K.-D.B. 2010. Brachythemis wilsoni. The IUCN Red List of Threatened
Species 2010: e.T59823A12069785. http://dx.doi.org/10.2305/IUCN.UK.20103.RLTS.T59823A12069785.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
5
Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
2. Savanna -> 2.2. Savanna - Moist
-
Unknown
-
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent
Rivers/Streams/Creeks (includes waterfalls)
-
Suitable
-
5. Wetlands (inland) -> 5.2. Wetlands (inland) Seasonal/Intermittent/Irregular Rivers/Streams/Creeks
-
Suitable
-
Threats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Threat
Timing
Scope
Severity
Impact Score
2. Agriculture & aquaculture -> 2.1. Annual &
perennial non-timber crops -> 2.1.2. Small-holder
farming
Ongoing
-
-
-
Stresses:
1. Ecosystem stresses -> 1.1. Ecosystem conversion
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
1. Ecosystem stresses -> 1.1. Ecosystem conversion
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
-
Stresses:
1. Ecosystem stresses -> 1.2. Ecosystem degradation
2. Agriculture & aquaculture -> 2.1. Annual &
perennial non-timber crops -> 2.1.3. Agro-industry
farming
9. Pollution -> 9.1. Domestic & urban waste water ->
9.1.3. Type Unknown/Unrecorded
9. Pollution -> 9.3. Agricultural & forestry effluents ->
9.3.4. Type Unknown/Unrecorded
-
-
-
-
-
-
Conservation Actions Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Conservation Actions Needed
2. Land/water management -> 2.1. Site/area management
Research Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
6
Research Needed
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends
Additional Data Fields
Distribution
Estimated extent of occurrence (EOO) (km²): 10000-20000
Population
Population severely fragmented: No
© The IUCN Red List of Threatened Species: Brachythemis wilsoni – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T59823A12069785.en
7
The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™