Fig. 1From: Young male mating success is associated with sperm number but not with male sex pheromone titresVariation of combined male sex pheromone titres (sum of MSPs 1–3) for pairs of Bicyclus anynana males having competed for a single female (n = 85). Each bar represents the MSP titre difference for one pair of males, with negative values (open bars) indicating that unsuccessful males had a higher combined MSP content than their successful counterparts and positive values (filled bars) the opposite. Data are presented for both control and olfaction-blocked femalesBack to article page