Status and conservation of the lion population in the Maasai steppe, Northern Tanzania
Bernard Kissui, PhD African Wildlife Foundation, Tanzania AFRICA TANZANIA
Serengeti NP Ngoron- Serengeti goro
Tarangire The West
Maasai Steppe
Matambwe
Selous Estimated number of remaining lions
• Estimated number across Africa: 23,000-40,000
• Estimated number for Tanzania: 16,800 (Mesochina et al 2010)
• > 50% of lions remaining in Africa are in Tanzania Threats to lion conservation •Human related threats Habitat fragmentation (Encroachment) Blockage of corridors/migratory routes Hunting Human-lion conflicts Persecution, snaring, poisoning •Diseases •Isolation into small populations -inbreeding depression Lion research and conservation in Maasai steppe
Human dimension of Lion population lion conservation
Applied research and Human-lion conflict monitoring Livestock predation Range use patterns Retaliatory lion killing
Demography Conflict mitigation Husbandry practices Maasai steppe Field data collection Radio telemetry data (VHF and GPS collars) Long-term monitoring (Population dynamics) Individual identification Human-lion conflicts
Esilalei, Losirwa Selela, Loiborsoit, Mbaashi Emboret, Olasiti Engaruka chini, Engaruka juu, Oltukai, Minjingu, Kakoy Makuyuni Kakoy Loiborserit, Lolkisale, Olasiti, Kimotorok, Losirwa, Mswakini chini, Mswakini juu
Mbaashi Village will lion killing incidents Where do livestock predation attacks occur?
Night Daytime Retaliatory killing of lions Direct pursuit with spears
JAN. 2007 Retaliatory killing of lions
Nov 06 Nov 06 Nov 06
DECSept. 2008 2009 February 2010 March 2010Mar 2009 Lion poisoning Five lion carcasses Aug. 2009 Kimotorok village Lion poisoning
Giraffe carcass laced with poison
Three lionesses died Jan.09 Retaliatory lion killing Conflict mortality
Year Lions killed 2004 60 2005 33 2006 22 2007 24 2008 15 2009 30 2010 17 Jan-Mar 2011 12 TOTAL 209 Conflict mortality
Unsexed
Cubs
Adult male Age-sex class
Adult female
5 10 15 20 25 30 35 40 Percentage of lions killed (n=180) Conflict mortality 2004-Oct. 2009 averages 15-20% annually
180 50
170 40
160 30
150 20 140
10 Number of lions in population lions of Number 130 % of population killed in conflict killed population % of
120 0 2004 2005 2006 2007 2008 Jan-Oct. 2009
Lion population size (monthly averages) %of popn killed in conflict
Population trend •High human-lion conflicts - livestock predation •Retaliatory killing of lions
200 190 y = -0.6964x + 172.08
180 170 160
150
140
Number of lions 130 120 110
100 90 1-Jul-05 1-Apr-04 1-Apr-09 1-Jan-03 1-Jun-03 1-Jan-08 1-Jun-08 1-Oct-06 1-Mar-07 1-Nov-03 1-Feb-05 1-Aug-07 1-Nov-08 1-May-06 1-Sep-04 1-Sep-09 1-Dec-05 Livestock losses by lions
Grand Lion Cattle Calves DonkeySheep Goat total 2004 64 7 15 4 49 139 2005 27 0 5 0 12 44 2006 15 0 5 6 21 47 2007 88 5 17 26 27 163 2008 25 2 3 3 13 46 2009 40 0 1 5 3 49 2010 10 0 4 15 14 43 Grand 269 14 50 59 139 531 Total Husbandry strategies against predation at homesteads
Boma made of poles and thorn Boma made of thorn bushes bushes
Mud/dung huts, sometimes Boma made of planted bricks trees for enclosure Others: Person stay in livestock at night, Dogs Husbandry strategies vs. predation in the field
• Splitting livestock into smaller herds
• Herders among livestock
• Herders carrying weapons (spear/stick)
• Herders in groups
• Noise
• Domestic dogs Husbandry strategies
χ2 = 1.712, df = 5, p = 0.887 Approaches to conflict mitigation
Direct reduction of livestock predation Improve livestock security-chain-link fences through 50% cost sharing
Affordability? Predator proof bomas
90
80
70
60
50
bomas 40
30
20
10 proof - proof predator of number Cumulative 0 11 05 06 07 08 09 10 05 06 07 08 09 10 05 06 07 08 09 10 ------Jul Jul Jul Jul Jul Jul Mar Mar Mar Mar Mar Mar Mar Nov Nov Nov Nov Nov Nov How effective are chain-links?
Monthly follows (May 2006 to March 2010)
Number of bomas Number of bomas reinforced with chain- constructed with link fences thorn bush walls (Experimental bomas) (Control bomas) Boma visited 43 41 Number of visits 412 394 Predation 20 19 Attempts Predation success 0 6 Probability of 0 0.32 predation success Community engagement
Direct payments as consolation for losses
Now engrained in the Tanzania wildlife policy
Regulations formulation
Planned pilot consolation schemes Community engagement (indirect)
Creation and promotion of Wildlife Management Areas (WMAs)
•Increase economic benefits to communities
•Attitudinal changes
•Create connectivity and wildlife habitat outside protected area AWF supported WMAs
BURUNGE WMA ENDUIMET WMA
OTHERS UNDERWAY: NDEDO-MAKAME WMA MAKUYUNI-LOLKISALE LAKE NATRON