Figure 3.

Temporal genomics of D. dugon in the Indo-Pacific region demonstrate that there has been a significant loss of genetic diversity in the western clade over recent times. A timeline from 1800 to 2000 AD shows the temporal distribution of individuals used to measure the loss of genetic diversity over time. Data used are museum collection and accession dates (see electronic supplementary material, table S6). The dashed line at 1950 visually divides the two temporal periods tested for each clade following Plön et al. [12]. Individuals are coloured by clade. A number of individuals (n) and nucleotide diversity (π) for each tested clade subset are given within the dashed boxes, and a significant loss of diversity (χ ² p‐value ≤ 0.05) is indicated with a red asterisk.