International Scholarly Research Notices

Research Article

Phylogenetic Evidence for the Gain and Loss of a Sexually Selected Trait in Sailfin Mollies

Figure 3

Relationships between SL (standard length in mm) and (a) dorsal fin area (mm2) and (b) lateral projection area (mm2) (LPA = the sum of dorsal fin area (DFA) + caudal fin area (CFA) + body area (BA)) as estimated by a best-fit least-squares power function of (area) = 𝑎 + 𝑏 (SL)c using curve fitting software (Table Curve 2D). P. velifera is shown as the green line with triangles (DFA— 𝑎 = − 8 . 5 3 , 𝑏 = 0 . 0 0 7 3 5 , and 𝑐 = 2 . 5 ; CFA— 𝑎 = − 3 0 . 6 , 𝑏 = 0 . 5 0 7 , and 𝑐 = 1 . 5 ; BA— 𝑎 = 3 4 . 1 , 𝑏 = 0 . 0 3 2 1 , and 𝑐 = 2 . 5 ). P. latipunctata is shown as the red line with diamonds (DFA— 𝑎 = − 6 1 . 5 , 𝑏 = 0 . 0 0 3 1 2 , and 𝑐 = 3 . 0 ; CFA— 𝑎 = − 4 8 0 , 𝑏 = 9 8 . 0 , and 𝑐 = 0 . 5 ; BA— 𝑎 = − 2 0 3 , 𝑏 = 2 . 3 8 , and 𝑐 = 1 . 5 ). P. mexicana is shown as the orange line with squares (DFA— 𝑎 = − 7 . 5 3 , 𝑏 = 0 . 0 0 0 9 2 9 , and 𝑐 = 3 . 0 ; CFA— 𝑎 = − 2 . 9 9 , 𝑏 = 0 . 0 0 1 8 4 , and 𝑐 = 3 . 0 ; BA— 𝑎 = 9 5 . 6 , 𝑏 = 0 . 0 0 3 9 7 , and 𝑐 = 3 . 0 ).
251925.fig.003a
(a)
251925.fig.003b
(b)