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Table 2 Loadings and explained variance of the first two PC of the PCA conducted on the “standardized” size of sclerites

From: A phylogeny of Cichlidogyrus spp. (Monogenea, Dactylogyridea) clarifies a host-switch between fish families and reveals an adaptive component to attachment organ morphology of this parasite genus

  Fact. 1 Fact. 2
Variance (%) 47.85 15.94
I (I) −0.873132 −0.389889
III (VI) −0.535295 −0.709933
IV (VII) −0.352651 −0.638280
V (IV) 0.032798 −0.186986
VI (III) −0.242397 −0.753181
VII (II) −0.383708 −0.825743
DB L −0.805421 −0.199626
DB y −0.705113 −0.021445
DB w −0.838653 0.044545
DB h −0.797425 0.231792
DA a −0.954211 0.212423
b −0.935548 0.165900
c −0.700350 0.015457
d −0.864610 0.324455
e −0.416138 0.547829
VB x −0.926706 0.077698
VB w −0.790515 0.033730
VA a −0.931174 −0.004236
b −0.933118 0.063475
c −0.532477 −0.117323
d −0.720919 0.190484
e −0.586523 0.488463
  1. (I) [I], (III) [VI], (IV) [VII], (V) [IV], (VI) [III], (VII) [II] total length of uncinuli [Mizelle [57] nomenclature]; dorsal transverse bar: (DB L) total length, (DB y) distance between auricles, (DB w) maximum width, (DB h) auricle length; (DA a) total length of dorsal anchor:, (b) blade length, (c) shaft length, (d) guard length, (e) point length; ventral transverse bar: (VB a) branch total length, (VB x) maximum width; (VA a) ventral anchor total length, (b) blade length, (c) shaft length, (d) guard length, (e) point length