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. 2017 Jan 4;5:e2770. doi: 10.7717/peerj.2770

Table 5. Test of the multivariate homogeneity variance in environmental features between turtle nest sites and reference sites.

Summary of PERMDISP, testing the multivariate homogeneity of variance in environmental features between turtle nest sites and reference sites within 50 m of nests.

Variable PERMDISP (df 1, 68) Distance from centroid nests Distance from centroid reference
F P Mean (se) Mean (se)
Distance to dense vegetation (m) 7.84 0.01 3.24 (0.40) 6.35 (0.66)
Distance to sparse vegetation (m) 13.46 0.02 0.69 (0.13) 3.09 (0.40)
Illuminance (mcd m2) 4.47 0.07 1.04 (0.18) 0.74 (0.07)
Terrain ruggedness 3.99 0.20 0.02 (<0.01) 0.05 (0.01)
Dune crest height (m) 1.52 0.22 1.22 (0.24) 0.93 (0.12)
Beach slope (deg) 1.71 0.24 2.11 (0.38) 1.57 (0.21)
Dune slope (deg) 0.18 0.69 4.87 (0.87) 4.35 (0.68)
Distance to urban land use (m) 0.18 0.77 80.37 (20.64) 91.55 (14.01)
Dune width (m) 0.13 0.77 5.18 (0.95) 4.74 (0.64)
Beach width (m) 0.07 0.83 7.77 (1.79) 8.28 (0.95)
Profile curvature (red/m) 0.03 0.89 0.023 (0.004) 0.021 (0.007)