Fig 1.
Distribution of Pelecanoides georgicus samples.
Origin, number, type (live/study skin), and corresponding pool of samples used in the assessment of phenotypic differentiations between allopatric populations of Pelecanoides georgicus. The species’ distribution is based on [47].
Table 1.
Definitions and measuring tools for biometric variables of Pelecanoides georgicus populations.
Fig 2.
Scoring scale for plumage characters in Pelecanoides georgicus populations.
(A) Extent of contrasting ear coverts: 1 = absent, 4 = reaching over the eye. (B) Extent of collar: 1 = absent, 4 = fully connected. (C) Extent of contrasting scapulars: 1 = absent, 4 = prominent and virtually connected.
Fig 3.
Scoring matrix for shape and extent of variation of markings on secondaries in Pelecanoides georgicus populations.
Shape (horizontal): 1 = absent, 4 = present on tip, inner and outer vane. Extent (vertical): 1 = absent, 5 = covering at least one vane entirely.
Fig 4.
Principal component analysis (PCA) scatterplot of biometric characters of Pelecanoides georgicus samples.
novus = P. g. novus, NZ = New Zealand, SAO = South Atlantic Ocean, SIO = South Indian Ocean. n = 190.
Table 2.
Principal component analysis (PCA) loadings of biometric characters of Pelecanoides georgicus samples.
Table 3.
Biometric characters of Pelecanoides georgicus populations.
Fig 5.
Principal component analysis (PCA) scatterplot of plumage characters of Pelecanoides georgicus samples.
novus = P. g. novus, NZ = New Zealand, SAO = South Atlantic Ocean, SIO = South Indian Ocean. n = 169.
Fig 6.
Study skins of Pelecanoides georgicus from different populations (Johannes H. Fischer).
(A) Dorsal view. (B) Ventral view. (C) Lateral view. SAO = NMNZ OR.18421; origin: South Georgia, U.K., South Atlantic Ocean. SIO = NMNZ OR.24768; origin: Heard Island, Australia, South Indian Ocean. NZ = NMNZ OR.21631; origin: Dundas Island, Auckland Islands, New Zealand. Note differences in bill depth (NZ having the highest/deepest), collar extent (SIO having the largest), extent of contrasting scapulars (NZ having the largest), and contrasting white markings on secondaries (NZ having the largest) among others.
Table 4.
Principal component analysis (PCA) loadings of plumage characters of Pelecanoides georgicus samples.
Table 5.
Plumage characters of Pelecanoides georgicus populations.