Table S2. Regression models exploring the best morphological correlate of forefoot grip strength on the broad dowel for each of the five phenotypic forms of the B. melanocephalum-B. thamnobates species complex.

Phenotypic form / Males / Females
Model / AIC / wi / Model / AIC / Wi
B. melanocephalum / BrL / -81.958 / 0.217* / BrL / -49.26 / 0.119
AL / -82.191 / 0.243* / AL / -48.99 / 0.104
MF / -81.146 / 0.144* / MF / -50.70 / 0.245
LF / -75.835 / 0.010 / LF / -48.87 / 0.098
PF / -78.458 / 0.038 / PF / -49.95 / 0.168
BrL+AL / -81.885 / 0.172* / MF+PF / -50.98 / 0.199
BrL+AL+LF / -81.863 / 0.124* / MF+LF+ PF / -49.99 / 0.067
BrL+AL+MF+LF / -81.018 / 0.052*
B. thamnobates / BrL / -63.430 / 0.380 / BrL / -90.15 / 0.095
AL / -61.753 / 0.164 / AL / -91.01 / 0.145
MF / -60.265 / 0.078 / MF / -91.79 / 0.215
LF / -60.559 / 0.091 / LF / -92.19 / 0.263
PF / -60.613 / 0.093 / PF / -91.05 / 0.149
BrL+MF / -62.591 / 0.193 / AL+LF / -91.23 / 0.133
Type A / BrL / -60.431 / 0.015 / BrL / -65.85 / 0.087
AL / -60.208 / 0.013 / AL / -67.51 / 0.199
MF / -68.567 / 0.891 / MF / -68.57 / 0.338
LF / -62.539 / 0.043 / LF / -66.92 / 0.149
PF / -60.367 / 0.014 / PF / -66.34 / 0.111
MF+LF / -61.926 / 0.024 / AL+MF / -66.89 / 0.118
Type B / BrL / -47.092 / 0.041 / BrL / -30.85 / 0.081
AL / -47.705 / 0.056 / AL / -34.00 / 0.392
MF / -43.994 / 0.009 / MF / -31.85 / 0.134
LF / -48.641 / 0.090 / LF / -31.49 / 0.112
PF / -51.525 / 0.379* / PF / -32.29 / 0.167
AL+PF / -51.539 / 0.261 / AL+PF / -32.59 / 0.115
AL+MF+PF / -51.522 / 0.135
AL+MF+LF+PF / -50.466 / 0.029
Type C / BrL / -21.227 / 0.027 / BrL / -29.50 / 0.132
AL / -22.160 / 0.043 / AL / -28.27 / 0.071
MF / -26.846 / 0.445* / MF / -32.29 / 0.534
LF / -22.874 / 0.061 / LF / -28.44 / 0.078
PF / -21.522 / 0.031 / PF / -28.18 / 0.068
BrL+PF / -29.384 / 0.353* / PF+MF / -30.98 / 0.116
BrL+AL+PF / -33.014 / 0.040


AIC, Akaike’s information criterion; wi, Akaike’s weight; BrL, brachium length; AL, antebrachium length; MF, medial forefoot pad length; LF, lateral forefoot pad length; PF, proximal forefoot pad length; *, P < 0.05. Multi-trait models with wi less than 0.01are not shown here. Text in bold highlights the best fitting model.