Ecological niche modeling to determine potential niche of Vaccinia virus: a case only study

Table 2 PCA results

Bio clim layer	PC 1	PC 2	PC 3	PC 4	PC 5
PWQ	0.6356	0.5965	0.2536	0.0680	−0.2815
MTCQ	0.2760	0.2158	−0.8614	−0.1089	0.3413
AP	0.2166	0.0951	0.0801	0.6262	0.2729
TS	0.0830	0.1829	−0.0215	−0.5473	−0.3041
PS	0.0750	0.0312	0.0203	0.2270	0.1051
MTWaM	0.0360	0.1909	0.4181	−0.4064	0.7729
ISO	0.0306	−0.0205	−0.0466	−0.0061	−0.0659
PDQ	0.0255	−0.0257	−0.0134	0.0306	−0.0361
PDM	0.0238	0.0547	−0.0042	−0.1760	−0.0939
MTCM	0.0236	−0.0199	−0.0302	0.0310	−0.0683
PCQ	0.0161	−0.0165	−0.0120	0.0315	−0.0308
TAR	0.0101	−0.0126	−0.0006	0.0275	−0.0036
PWaQ	0.0087	−0.0078	−0.0159	0.0340	−0.0390
MTWaQ	0.0071	−0.0047	−0.0045	−0.0161	0.0057
MTDQ	0.0066	−0.0116	−0.0029	0.0671	−0.0441
PWM	−0.0048	−0.0251	0.0070	0.0725	0.0518
AMT	−0.0069	−0.0040	0.0270	0.0338	0.0292
MTWQ	−0.0240	0.0089	0.0437	0.0732	0.0217
MDR	−0.6747	0.7154	−0.0722	0.1510	−0.0356
% of eigen values	66.9938	92.3237	97.2055	98.8945	99.6106

Eigen vectors and values
Listed are the Eigen vectors, indicating the contributions of each bioclim layer to the 5 principle component (PC) layers, used in MaxENT modeling. The three largest contributors to each layer are highlighted in italics. Eigen values listed in the last row indicate the amount of heterogeneity that each PC layer accounts for PWQ precipitation of wettest quarter, MTCQ Mean Temperature of Coldest Quarter, AP annual precipitation, TS Temperature Seasonality (standard deviation * 100), PS Precipitation Seasonality (Coefficient of Variation), MTWaM maximum temperature of the warmest month, ISO isothermability (Bio2/Bio7) * (100), PDQ Precipitation of Driest Quarter, PDM precipitation of the driest month, MTCM minimum temperature of the coldest month, PCQ Precipitation of Coldest Quarter, TAR Temperature Annual Range (MTWaM–MTCM), PWaQ Precipitation of Warmest Quarter, MTWaQ Mean Temperature of Warmest Quarter, MTDQ Mean Temperature of Driest Quarter, PWM precipitation of the wettest month, AMT annual mean temperature, MTWQ Mean Temperature of Wettest Quarter, MDR mean diurnal range

ISSN: 1476-072X