Virility does not Imply Immensity: Testis size, Accessory Gland Size and Ejaculate depletion pattern do not Evolve in Response to Experimental Manipulation of Sex Ratio in Drosophila melanogaster

Introduction Introduction Materials and Methods Dissections and Measurements Results Discussion References Females in many species mate more than once and store sperm from more than one male. This leads to post-copulatory competition where sperm from different males compete to fertilize the limited number of eggs produced by the female-typically called Sperm competition (Parker, 1970a) (Wedell et al., 2002). Sperm competition and the resulting post-copulatory selection can significantly alter male reproductive behavior (Simmons et al., 1993) (Cook & Wedell, 1996) (Gage and Barnard, 1996) (Wedell & Cook 1999a,b) (Bretman et al., 2009) (Bretman et al., 2010) ( ...