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. 2017 Mar 14;5:e3093. doi: 10.7717/peerj.3093

Table 2. Estimation of resulting differences when using MaxEnt’s default parameters or a best model approach for modelling species distribution.

Spatial correlation values are based in the spatial correlation analysis of MaxEnt’s logistic output. Fuzzy kappa was calculated after applying the 10 percentile training presence logistic threshold to generate the species distribution maps. Area values are based on binary maps generated after applying the 10 percentile training presence logistic threshold. Best model parameters represent the combination of feature classes and regularization multipliers of the model identified as of best performance for each study case.

Sample size Spatial correlation Fuzzy Kappa Area (Km2) Area (Km2) Shared/not shared ratio Best model parameters Source
Default Best model Shared Not shared
7 0.856 0.864 144,129 447,092 142,612 0.466 0.466 T2 Carvalho & Lama (2015)
8 0.957 0.799 76 66 66 6.600 6.600 Q5 Fois et al. (2015)
9 0.905 0.797 15,907 9,771 9,212 1.270 1.270 LQP5 Chunco et al. (2013)
10 0.943 0.781 861 1,939 843 0.758 0.758 Q1 Alfaro-Saiz et al. (2015)
11 0.992 0.943 122,415 149,775 121,283 4.094 4.094 L1 Chetan, Praveen & Vasudeva (2014)
12 0.983 0.841 428,209 551,196 425,674 3.324 3.324 L2 Palmas-Pérez et al. (2013)
12 0.836 0.906 175,166 174,543 156,798 4.342 4.342 TQ5 Pedersen et al. (2014)
13 0.960 0.843 33,421 26,169 24,317 2.219 2.219 TQ2 Alamgir, Mukul & Turton (2015)
13 0.995 0.965 22,013 26,445 21,820 4.528 4.528 LQ1 Mweya et al. (2013)
14 0.948 0.916 363 907 353 0.625 0.625 LQP1 Meyer, Pie & Passos (2014)
15 0.967 0.900 5,004 8,845 4,991 1.291 1.291 QH2 Urbani et al. (2015)
16 0.769 0.652 13,466 28,948 12,848 0.768 0.768 LQPT5 De Castro Pena et al. (2014)
26 0.865 0.847 5,655,316 7,383,714 5,003,914 1.651 1.651 QP1 Chłond, Bugaj-Nawrocka & Junkiert (2015)
26 0.945 0.705 32,020 36,420 28,695 2.597 2.597 L2 Simo et al. (2014)
31 0.937 0.879 243,764 248,513 196,113 1.960 1.960 PT1 Orr et al. (2014)
49 0.962 0.880 135,239 103,330 100,192 2.624 2.624 PT1 Hu & Liu (2014)
54 0.945 0.858 2,491,722 1,723,084 1,598,103 1.569 1.569 LQPT1 Conflitti et al. (2015)
55 0.841 0.863 1,649,518 1,570,127 1,362,351 2.753 2.753 TQ2 Vergara & Acosta (2015)
58 0.827 0.862 5,822,694 5,37,0521 4,439,531 1.918 1.918 T1 Aguiar et al. (2015)
76 0.934 0.858 3,904,018 3,700,108 3,406,765 4.309 4.309 TQ1 Yu et al. (2014)