Relationships between variables of sperm competition in bothriurid scorpions.

<p>A: Effect of body mass on testes mass. B: Effect of body mass on sperm length. C: Effect of body mass on spermatophore’s volume. D: Effect of polyandry on testes mass. E: Effect of polyandry on sperm length. F: Effect of polyandry on spermatophore’s volume. Abbreviations: Td: <i>Timogenes dorbignyi</i>, Te: <i>Timogenes elegans</i>, Br: <i>Bothriurus rochensis</i>, Bb: <i>Bothriurus bonariensis</i>, Bc<i>: Bothriurus cordubensis</i>, Brf: <i>Brachistosternus ferrugineus</i>, Brp: <i>Brachistosternus pentheri</i>, Ub: <i>Urophonius brachycentrus.</i>