Figure 1.
Biopsy sampling locations and sample sizes of Australian snubfin and Indo-Pacific humpback dolphins in north-western Australia.
Figure 2.
mtDNA networks for snubfin and humpback dolphins.
Sample sizes are shown in parentheses. Branch numbers indicate the number of nucleotide differences between mtDNA haplotypes.
Figure 3.
Structure plots for humpback dolphins where k = 3 (A) and k = 4 (B), for snubfin dolphins (C), and the three regularly encountered dolphin species at Cygnet Bay (D). k = number of clusters.
Each bar on the x-axis corresponds to an individual. The y-axis indicates the proportion of population/species membership. OH = snubfin dolphins, SC = humpback dolphins, CY = Cygnet Bay, DA = Dampier Archipelago, NWC = North West Cape, RB = Roebuck Bay, H = suspected hybrid, TA = bottlenose dolphin.
Table 1.
Microsatellite characteristics for snubfin and humpback dolphins.
Table 2.
Genetic differentiation of mtDNA and microsatellite loci.
Figure 4.
Images of hybrid (A1–2), adult snubfin (B1–2), humpback (D1–2) and bottlenose (D1–2) dolphins encountered at Cygnet Bay.
Left images show relative dorsal proportions; right images compare head/rostrum characteristics.
Table 3.
Alleles shared by the suspected hybrid and the three resident dolphin species at Cygnet Bay.