Resampling of dung beetle body mass and back leg length.

<p>Total population mean (solid horizontal black lines; calculated using all individuals from each species, n = 51–229) and mean standard error (grey ribbons; calculated using resampled data from focal species, n = 13, collected from all sampling locations) of dung beetle dry body mass (left panel) and back leg length (right panel) with species photographs. Photographs are scaled to each other; smallest species, <i>Trichillum pauliani</i>, length: 5.5mm; largest species, <i>Dichotomius boreus</i>, length: 24mm length. Species trait values were resampled to create new datasets containing 3 to 100 individuals and the mean standard error was calculated from the new datasets. Vertical lines indicate the number of individuals needed to create a mean standard error within 5% of the total population mean when considering individuals from every site (thin solid lines), one site only (dashed lines). When there was no difference in the numbers needed between all sites and one site, thick solid lines are used. The body mass panel for <i>D</i>. <i>boreus</i> has no vertical lines because resampling was stopped at a sub-set size of 50 individuals (the sample size of this species), which was before the mean SE had fallen within 5% of the total sample mean. Histograms display the frequency with which each sample size created a mean standard error below the 5% threshold using individuals from all site (light grey) and one site (dark grey). Results are presented by species, ordered by their mean trait values.