Descriptive statistics of asymmetry measures.

We measured the total length of digits 2–5. We also measured the lengths of phalanges 1–3 in these digits as well as the width of the first joint in digits 2–5 (see also figure 1). Real fluctuating asymmetry (real FA) and measurement error (ME), a test of directional asymmetry (DA) and a measure of this difference (right-left both in absolute terms and as a proportion of trait size) as well as the hypothetical repeatability (R) are given.