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