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. 2011 Aug 25;6(8):e24128. doi: 10.1371/journal.pone.0024128

Table 1. Maximum likelihood estimates (Etienne 2005) of θ and m by the neutral model, with J  = 10 000, θ = 50.

Parameters used in simulations Parameters estimated by the neutral model
θ m σ Inline graphic(Inline graphic) Inline graphic(Inline graphic)
50 0.01 0.1 59.2 (44.6) 0.008 (0.046)
1 33.6 (37.6) 0.021 (0.062)
4 18.1 (18.9) 0.083 (0.149)
0.1 0.1 51.9 (52.9) 0.087 (0.100)
1 42.9 (42.9) 0.154 (0.177)
4 30.3 (30.2) 0.327 (0.375)
0.3 0.1 51.5 (51.6) 0.269 (0.282)
1 46.5 (46.5) 0.361 (0.395)
4 35.1 (35.0) 0.657 (0.678)

Inline graphic and Inline graphic are estimated values of θ and m from the mean species abundance distribution averaged over 100 replicate simulations, whereas Inline graphic and Inline graphic in the brackets are averages over estimated values for 100 replicate simulations for each parameter set.