Table 3. Descriptive morphometric statistics for species of the Pristimantis acuminatus complex.
| Variable | Species | Kruskal-Wallis Test (KW) | ||||
|---|---|---|---|---|---|---|
| P. limoncochensis Clade A (n = 8) | P. omeviridis Clade B (n = 9) | P. acuminatus Clade C (n = 6) | P. enigmaticus Clade D (n = 6) | KW | P-value (Monte Carlo) | |
| Males | ||||||
| SVL | 20.70±1.07 | 20.80±1.77 | 22.80±1.12 | 20.70±2.32 | 6.87 | 0.07 |
| 18.67–22.18 | 17.77–23.31 | 20.91–24.01 | 18.51–24.79 | |||
| HL | 7.60±0.47 | 7.80±0.93 | 8.10±0.17 | 7.40±0.72 | 4.25 | 0.24 |
| 6.73–8.15 | 6.86–9.73 | 7.80–8.29 | 6.92–8.58 | |||
| HW | 7.30±0.56 | 7.30±0.62 | 8.10±0.45 | 7.00±0.60 | 8.27* | 0.03 |
| 6.42–8.16 | 6.25–8.04 | 7.39–8.50 | 6.48–7.98 | |||
| EN | 2.40±0.25 | 2.40±0.19 | 2.70±0.14 | 2.60±0.17 | 8.88* | 0.02 |
| 2.16–2.83 | 2.11–2.60 | 2.54–2.90 | 2.34–2.84 | |||
| ED | 2.70±0.25 | 2.80±0.30 | 2.70±0.21 | 2.70±0.35 | 1.71 | 0.65 |
| 2.19–2.94 | 2.27–3.20 | 2.51–3.10 | 2.30–3.31 | |||
| IOD | 3.20±0.43 | 2.90±0.35 | 3.40±0.45 | 3.10±0.25 | 6.26 | 0.10 |
| 2.84–4.15 | 2.17–3.30 | 2.98–4.20 | 2.84–3.50 | |||
| EW | 1.90±0.23 | 1.90±0.25 | 2.00±0.24 | 1.90±0.32 | 1.30 | 0.74 |
| 1.60–2.20 | 1.57–2.30 | 1.67–2.36 | 1.68–2.53 | |||
| TD a | – | 1.00±0.22 | – | 1.00±0.12 | 10.00 b | 0.37 |
| – | 0.66–1.30 | – | 0.84–1.08 | |||
| FL | 10.00±0.68 | 10.10±0.76 | 10.80±0.48 | 10.10±0.72 | 6.04 | 0.10 |
| 8.96–10.73 | 8.46–10.77 | 9.85–11.12 | 9.14–11.31 | |||
| TL | 10.80±0.59 | 10.50±0.97 | 11.30±0.96 | 10.60±0.81 | 3.21 | 0.37 |
| 9.98–11.81 | 8.38–11.57 | 9.90–12.87 | 9.73–12.12 | |||
| FtL | 14.20±0.85 | 13.50±1.17 | 14.90±0.99 | 13.90±1.30 | 5.55 | 0.13 |
| 12.60–15.17 | 10.88–15.11 | 13.47–16.32 | 12.33–16.19 | |||
| HdL | 5.70±0.47 | 5.80±0.63 | 6.30±0.40 | 6.00±0.58 | 4.61 | 0.20 |
| 4.80–6.24 | 4.71–6.49 | 5.85–6.96 | 5.44–7.04 | |||
| F3 | 1.10±0.15 | 1.00±0.20 | 1.30±0.12 | 1.10±0.20 | 6.58 | 0.08 |
| 0.91–1.30 | 0.65–1.30 | 1.06–1.40 | 0.92–1.49 | |||
| T4 | 1.00±0.10 | 1.00±0.19 | 1.20±0.20 | 1.10±0.21 | 4.44 | 0.22 |
| 0.91–1.22 | 0.64–1.30 | 0.99–1.43 | 0.87–1.48 | |||
| Females | ||||||
| SVL | 29.00±1.25 | 28.6±1.92 | 30.50±2.96 | 30.80±2.92 | 3.40 | 0.34 |
| 27.73–30.79 | 26.10–30.91 | 27.10–33.45 | 26.38–36.37 | |||
| HL | 10.40±1.05 | 9.70±0.63 | 11.20±2.59 | 10.70±1.04 | 4.60 | 0.21 |
| 9.45–12.43 | 8.60–10.39 | 9.10–14.94 | 9.10–12.50 | |||
| HW | 9.80±0.41 | 9.40±0.72 | 10.90±1.87 | 10.50±0.86 | 8.28* | 0.03 |
| 9.36–10.38 | 8.10–10.14 | 8.80–12.8 | 8.80–12.18 | |||
| EN | 3.00±0.30 | 3.10±0.19 | 3.40±0.31 | 3.30±0.33 | 6.30 | 0.09 |
| 2.63–3.48 | 2.90–3.40 | 3.10–3.78 | 2.77–3.90 | |||
| ED | 3.30±0.24 | 3.20±0.18 | 3.40±0.23 | 3.40±0.37 | 1.50 | 0.71 |
| 2.99–3.58 | 2.90–3.42 | 3.10–3.64 | 2.72–4.00 | |||
| IOD | 4.30±0.08 | 3.80±0.20 | 4.30±0.73 | 4.20±0.39 | 8.07* | 0.03 |
| 4.21–4.44 | 3.57–4.10 | 3.30–4.96 | 3.74–4.88 | |||
| EW | 2.30±0.36 | 2.40±0.13 | 2.60±0.36 | 2.40±0.23 | 2.70 | 0.49 |
| 1.89–2.96 | 2.20–2.60 | 2.10–2.89 | 2.04–2.90 | |||
| TD a | – | 1.20±0.18 | – | 1.40±0.24 | 22.00 b | 0.08 |
| – | 0.95–1.41 | – | 0.92–1.90 | |||
| FL | 13.80±0.77 | 13.60±0.49 | 14.40±1.70 | 14.40±1.04 | 4.40 | 0.23 |
| 12.65–14.87 | 12.95–14.40 | 11.90–15.58 | 12.30–15.89 | |||
| TL | 14.10±0.50 | 14.20±0.33 | 15.50±2.19 | 15.10±0.9 | 7.89* | 0.04 |
| 13.52–14.88 | 13.70–14.60 | 12.80–17.94 | 13.40–16.42 | |||
| FtL | 18.50±1.15 | 19.00±0.88 | 20.40±2.69 | 20.50±1.49 | 8.83* | 0.02 |
| 16.61–19.49 | 17.75–20.30 | 16.60–22.36 | 17.21–22.47 | |||
| HdL | 8.00±0.34 | 7.90±0.64 | 8.40±1.35 | 8.70±0.71 | 7.90* | 0.04 |
| 7.64–8.61 | 7.20–8.70 | 6.40–9.44 | 7.20–9.78 | |||
| F3 | 1.50±0.21 | 1.60±0.22 | 1.90±0.52 | 1.80±0.29 | 6.20 | 0.09 |
| 1.28–1.80 | 1.30–1.86 | 1.10–2.28 | 1.16–2.10 | |||
| T4 | 1.60±0.27 | 1.60±0.18 | 1.60±0.45 | 1.70±0.28 | 2.40 | 0.50 |
| 1.16–1.91 | 1.39–1.84 | 1.10–2.08 | 1.13–2.10 | |||
Mean ± SD are given with range below. Abbreviations are: SVL = snout–vent length; HL = head width; HW = head length; ED = horizontal eye diameter; IOD = Interorbital distance; EN = eye-nostril distance; EW = width of upper eyelid; TD = tympanic diameter (not used for PCA); FL = femur length; TL = tibia length; FtL = foot length; HdL = hand length; F3 = disc diameter on finger III; and T4 = disc diameter on toe IV. All measurements are in mm.
a Tympanum diameter was not used in the PCA (see Materials and Methods),
b but a Mann-Whitney paired test was used to compare tympanum size between species.
*Variables with significant statistics at P = 0.05.