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. 2013 Jan 16;8(1):e53726. doi: 10.1371/journal.pone.0053726

Table 2. African elephant demographic parameters from 12 wild populations (one sampled twice) collected through individual registration, radio tracking or culling.

YoungestConception Age Avg. PrimiparousAge (years) Mean CalvingInterval (years) AnnualMortality Densityele/mile2 Yearly Rain(mm) Citation
Addo N.P. South Africa 9 12.5 3.3 1.4% 9.6 392 Gough and Kerley 2006
Amboseli N.P. Kenya 7.1 13.7 4.5 4.15% <1 350 Lee and Moss pers comms. 2012, Moss 2001
Etosha N.P. Namibia 11.1 3.8 5.0% <1 250–450 Lindeque 1988
Kruger N.P. South Africa 8 13 3.8 3.2% <1 450–700 Whyte et al. 1998, Freeman et al. 2009
Lake Manyara N.P. Tanzania 8 13 4.6 3.5%(2.7–3.9%) 6.2 650 Douglas-Hamilton 1972
Luangwa N.P. Zambia 12 16 3.4 3–6 800 Hanks 1972
Mkomazi N.P. Tanzania 12.2 4.2 5.0% 2.5 400 Laws et al. 1975
Murchison Falls N.P. Uganda 7 11 8.6 1.7 1,085 Buss and Smith 1966
Murchison North Uganda 16.3 9.1 5.1–6.6% 3–4 1,085 Laws et al. 1975
Murchison South Uganda 17.8 5.6 6–7 1,085 Laws et al. 1975
Samburu N.R. Kenya 6.7 11.5 4.0 2.8% pre4.7% total <1 350 This study
Tarangire N.P. Tanzania 6.9 11.2 3.3 1.9% <1 656 Foley and Faust 2010
Tsavo N.P. Kenya 14.5 6.8 3.8–5.0% 3 200–700 Laws et al. 1975
Captive 12 16.3 Dale 2010