Damaliscus lunatus ssp. jimela
|Scientific Name:||Damaliscus lunatus ssp. jimela (Matschie, 1892)|
|Taxonomic Notes:||Topi (Damaliscus lunatus jimela) is one of six subspecies of Topi (Damaliscus lunatus), following Duncan (2013). The others being: Korrigum (D. l. korrigum); Tiang (D. l. tiang); Coastal Topi (D. l. topi); Bangweulu Tsessebe (D. l. superstes); and Tsessebe (D. l. lunatus).|
|Red List Category & Criteria:||Vulnerable A4bcd ver 3.1|
|Assessor(s):||IUCN SSC Antelope Specialist Group|
This subspecies has shown a large decline in Tanzania (where the majority of the global population occurs) from around 58,500 individuals in 1999 to 35,000-46,500 individuals in 2014, due to the combined impacts of agro-pastoral development, hunting and the decreasing availability of floodplain habitat. This equates to a projected decline over three generations (18 years) of 25-46% (average decline 36%) in Tanzania. Assuming no decline outside of Tanzania would result in an overall decline of 20-38% (average decline 29%) and a listing of Near Threatened. However we take a precautious approach, noting that any decline outside Tanzania (as suspected) will have pushed the subspecies into a threatened category; therefore it is listed as Vulnerable under criterion A4 (an inferred decline of greater than 30% over three generations: 1999 to 2017).
|Previously published Red List assessments:|
|Range Description:||Topi (sensu stricto) occur in south-west Kenya, northwest and western Tanzania, east and south-western Uganda and north-eastern Rwanda. Topi are now extinct in Burundi. |
For the distribution map, see the parent species assessment: Damaliscus lunatus.
Native:Congo, The Democratic Republic of the; Kenya; Rwanda; Tanzania, United Republic of; Uganda
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||East (1999) estimated a global population of ca 71,000 Topi. This subspecies is generally decreasing, for example numbers in the Masai Mara declined ca 70% between 1977 and 2007 (Ogutu et al. 2011). The largest population (27,000-38,500) is in the Serengeti ecosystem; there are an estimated 4,000-5,000 in Moyowsi-Kigosi Game reserve and 1,000-2,000 in Ugalla Game Reserve (Foley et al. 2014). In Tanzania (where the majority of the global population occurs) Topi have declined from around 58,500 individuals (East 1999) to 35,000-46,500 individuals (Foley et al. 2014) over 15 years.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||Topi is generally an inhabitant of floodplains and other grasslands and savannas in East Africa. Nearly exclusively grazers, they can go for months without drinking in the dry season if they are feeding on growing grass (Duncan 2013).|
|Generation Length (years):||6.1|
|Use and Trade:||This subspecies is hunted for food and sport. In Tanzania, the Government trophy fee for a topi is US$800, so with added Community Development/anti-poaching fees, the full trophy fee is between US$950 and US$1900.|
|Major Threat(s):||The main threats to the species in general, and the subspecies Topi (D. l. jimela), are agro-pastoral development and hunting. The maintenance of floodplains is also important, for example the population around Lake Rukwa (Tanzania) decreased following a rise in water levels which caused a reduction in the area of the floodplain (Vesey-Fitzgerald 1960, Rodgers 1982).|
|Conservation Actions:||More than 90% of Topi occur in protected areas, in particular Serengeti N.P. (Tanzania), Queen Elizabeth N.P. (Uganda), Virunga N.P. (DR Congo), Akagera N.P. (Rwanda) and Maasai-Mara (Kenya). However, the populations in Queen Elizabeth N.P and the Virungas have been declining (East 1999). The population in Akagera, the last effective stronghold for Topi in Rwanda, declined from around 7,500 in 1990 to an estimated 770 in the late 1990s following the reduction in size of the park in 1997 (Williams and Ntayombya 1999), although the population has since recovered (Apio and Wronski 2011).|
Apio, A. and Wronski, T. 2011. A rough population estimate of large ungulates in the Akagera National Park, Rwanda. Gnusletter 29(2): 14-16. IUCN/SSC Antelope Specialist Group.
Duncan, P. 2013. Damaliscus lunatus Topi/Tsessebe/Tiang/Korrigum. In: J.. Kingdon and M. Hoffmann (eds), Mammals of Africa. VI. Pigs, Hippopotamuses, Chevrotain, Giraffes, Deer, and Bovids, pp. 502-510. Bloomsbury Publishing, London, UK.
East, R. (compiler). 1999. African Antelope Database 1998. IUCN, Gland, Switzerland and Cambridge, UK.
Foley, C., Foley, L., Lobora, A., De Luca, D., Msuha, M., Davenport, T.R.B. and Durant, S. 2014. A Field Guide to the Larger Mammals of Tanzania. Princeton University Press, Princeton, USA.
IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-2. Available at: www.iucnredlist.org. (Accessed: 14 September 2017).
Ogutu, J.O., Owen‐Smith, N., Piepho, H.P. and Said, M.Y. 2011. Continuing wildlife population declines and range contraction in the Mara region of Kenya during 1977–2009. Journal of Zoology 285: 99-109.
Rodgers, W.A. 1982. The decline of large mammal populations on the Lake Rukwa grasslands, Tanzania. African Journal of Ecology 20: 13-22.
Vesey-Fitzgerald, D.F. 1960. Grazing succession amongst East African game animals. Journal of Mammalogy 41: 161-170.
Williams, S.D. and Ntayombya, P. 1999. Akagera: An assessment of the biodiversity and conservation needs. Report of the Zoological Society of London – MINAGRI, London, UK.
|Citation:||IUCN SSC Antelope Specialist Group. 2017. Damaliscus lunatus ssp. jimela. The IUCN Red List of Threatened Species 2017: e.T6241A50185829.Downloaded on 23 January 2018.|